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Animal Sciences

Kansas Agricultural Experiment Station Research Reports

1997

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Pyridoxine, But Not Thiamin, Improves Growth Performance Of Weanling Pigs (1997), J C. Woodworth, R E. Musser, J A. Loughmiller, S A. Moser, G S. Grinstead, P R. O'Quinn, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1997

Pyridoxine, But Not Thiamin, Improves Growth Performance Of Weanling Pigs (1997), J C. Woodworth, R E. Musser, J A. Loughmiller, S A. Moser, G S. Grinstead, P R. O'Quinn, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine whether pyridoxine or thiamine needs to be added to the diet for weanling pigs. In the first trial, weanling pigs were fed either a control diet or diets containing added thiamin (2.5 or 5.0 g/ton) or pyridoxine (3.5 or 7.0 g/ton). From d 0 to 14 after weaning, pigs fed added pyridoxine had increased ADG and ADFI, with pigs fed 3.5 g/ton of added pyridoxine having the greatest response. Growth performance was not improved by added thiamin. In a second trial, weanling pigs were fed a control diet or diets containing 1, 2, 3, …

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Effects Of Increased Feed Intake Or Additional Corn From Day 30 To 50 Of Gestation On Performance Of Sows And Growth Performance And Carcass Characteristics Of Offspring (1997), R E. Musser, J S. Bauman, M Heintz, Robert D. Goodband, Duane L. Davis, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 1997

Effects Of Increased Feed Intake Or Additional Corn From Day 30 To 50 Of Gestation On Performance Of Sows And Growth Performance And Carcass Characteristics Of Offspring (1997), R E. Musser, J S. Bauman, M Heintz, Robert D. Goodband, Duane L. Davis, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 321 PIC sows was used to determine the effects of either increased feed (8 Ib/d of complete feed) or added corn (4 Ib/d of complete feed plus 4 Ib/d of ground corn) from d 30 to 50 of gestation on sow and offspring performance. Sows fed increased feed intake from d 30 to 50 of gestation had fewer pigs born live than control sows; however this decrease was not observed for sows fed ground corn. Increased complete diet feed intake from d 30 to 50 of gestation resulted in heavier offspring at slaughter, with offspring from sows …

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Effects Of Time Of Introduction And Level Of Soybean Meal On Performance Of Segregated Early-Weaned Pigs (1997), P R. O'Quinn, J R. Bergstrom, J A. Loughmiller, K Hongtrackul, R E. Musser, C A. Civis, C J. Maxwell, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1997

Effects Of Time Of Introduction And Level Of Soybean Meal On Performance Of Segregated Early-Weaned Pigs (1997), P R. O'Quinn, J R. Bergstrom, J A. Loughmiller, K Hongtrackul, R E. Musser, C A. Civis, C J. Maxwell, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A growth trial was conducted utilizing segregated early weaned (SEW) pigs to evaluate the effects of time of introduction and level of soybean meal on growth performance. Few differences were observed in growth performance indicating that including up to 40% soybean meal in the diet will not adversely affect growth of high-health status, SEW-reared pigs.; Swine Day, Manhattan, KS, November 20, 1997

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Effect Of Grain Sorghum Particle Size And Digest “M” Enzyme Treatment On Performance Of Growing Steers, T.J. Kessen, D.D. Simms, Gerry L. Kuhl, James S. Drouillard Jan 1997

Effect Of Grain Sorghum Particle Size And Digest “M” Enzyme Treatment On Performance Of Growing Steers, T.J. Kessen, D.D. Simms, Gerry L. Kuhl, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

A 73-day growing study utilizing 203 crossbred steers (681 lb) and a digestion trial examined the effect o f sorghum grain particle size on rumen fermentation, ration digestibility, and performance of growing steers fed 37% grain and 63% ground alfalfa. Dry-rolled grain sorghum p article sizes in both trials were about 2000, 1500, and 1000 microns, for the coarse- (CR), medium- (MR), and fine-rolled (FR) treatments , respectively. Coarsely rolled corn (2000 microns) was included as a positive control. In the growing study, half of sorghum was treated at feeding time with an enzyme product, Digest "M". The rations were …

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Reproductive Performance Of Replacement Heifers Implanted As Young Calves Or At Weaning, L.R. Corah, A.R. Spell, D.L. Cook, M.D. Butine, K. Anderson, David M. Grieger Jan 1997

Reproductive Performance Of Replacement Heifers Implanted As Young Calves Or At Weaning, L.R. Corah, A.R. Spell, D.L. Cook, M.D. Butine, K. Anderson, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

This study evaluated the effect of implanting potential replacement heifers (n=548) with Component E-C® (10 mg of estradiol and 100 mg of progesterone) between 45 and 120 days of age or at weaning (200 days of age) on future reproductive performance. Trials were conducted at five ranches in Kansas and one in Nebraska. At each location, heifers were allotted to three treatments: no implant (Control), one implant at 45 to 120 days of age (Early- IMP), or one implant at 2 00 days of age (Wean- IMP). No differences were detected among treatments for first service conception rate (55%), overall …

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Synchronization Of Estrus And Ovulation In Dairy Heifers Using Norgestomet, Gnrh, And Pgf2Α (1997), Jeffrey S. Stevenson, K. E. Thompson, John F. Smith, D. E. Hawkins Jan 1997

Synchronization Of Estrus And Ovulation In Dairy Heifers Using Norgestomet, Gnrh, And Pgf2Α (1997), Jeffrey S. Stevenson, K. E. Thompson, John F. Smith, D. E. Hawkins

Kansas Agricultural Experiment Station Research Reports

Two experiments were performed using the same treatments. All heifers received two injections of PGF2α 14 days apart. Controls then were inseminated after detected estrus. Heifers assigned to the two treatments also received 6 mg of norgestomet for 8 days beginning 7 days before the second of two PGF2α injections. The heifers in the last treatment also received GnRH 48 hr after the second PGF2α injection to induce ovulation in any heifer not observed in estrus before a fixed-time insemination at 72 hr after PGF2α. In Experiment 1, any control heifer or herifer in the two treatments not detected in …

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Development And Use Of Recombinant Gonadotropin-Releasing Hormone Vaccines To Sterilize Cattle: A Review (1997), J. Greer, Timothy G. Rozell Jan 1997

Development And Use Of Recombinant Gonadotropin-Releasing Hormone Vaccines To Sterilize Cattle: A Review (1997), J. Greer, Timothy G. Rozell

Kansas Agricultural Experiment Station Research Reports

A possible alternative to conventional castration methods is the use of vaccines that can be injected in order to sterilize animals. One promising approach involves the use of a vaccine that causes cattle to produce an immune response against one of their own reproductive hormones, gonadotropin releasing hormone (GnRH). Immunization against GnRH results in a decrease in the amount of GnRH circulating within the animal's blood. Therefore, follicle stimulating hormone (FSH) and luteinizing hormone (LH) are not stimulated to be released, and, subsequently their levels required for reproductive function. Experimentation has shown that immunization against GnRH can effectively block reproductive …

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Effects Of Poultry Fat And Choice White Grease On Finishing Pig Growth Performance, General Carcass Characteristics, And Pork Longissimus Muscle Quality (1997), J J. Engel, J W. Smith Ii, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen Jan 1997

Effects Of Poultry Fat And Choice White Grease On Finishing Pig Growth Performance, General Carcass Characteristics, And Pork Longissimus Muscle Quality (1997), J J. Engel, J W. Smith Ii, Robert D. Goodband, John A. Unruh, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Eighty-four crossbred gilts were used to exan1ine the effects of increasing dietary additions of poultry fat (PF) or choice white grease (CWG) on finishing pig growth performance, standard carcass characteristics, and longissimus muscle quality. Increasing CWG or PF improved feed efficiency. Increasing CWG tended to increase then decrease longissimus muscle visual color compared with longissimus muscles from those animals fed PF. Pigs fed CWG had firmer, less exudative, and more purplish-red (measured by a Minolta chronometer) longissimus muscles compared with pigs fed PF. Feeding CWG or PF did not affect standard carcass traits and had minimal effects on longissimus muscle …

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Effects Of A High Protein, Whey Protein Concentrate And Spray-Dried Animal Plasma On Growth Performance Of Weanling Pigs (1997), G S. Grinstead, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1997

Effects Of A High Protein, Whey Protein Concentrate And Spray-Dried Animal Plasma On Growth Performance Of Weanling Pigs (1997), G S. Grinstead, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

A 35-d experiment was conducted to compare the effects of increasing spray-dried animal plasma and a high protein whey concentrate (73% CP) on starter pig performance. Spray-dried animal plasma and whey protein concentrate replaced dried skin1 milk on an equal lysine basis. Pigs fed increasing spray-dried animal plasma protein had increased ADG and ADFI from d 0 to 7 after weaning, but not for any other period in the study. Increasing whey protein concentrate had no effect on growth perforn1ance in relation to the pigs fed dried skim milk.; Swine Day, Manhattan, KS, November 20, 1997

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Puberty Induction In Young Gilts: Ovarian, Uterine, And Pregnancy Responses (1997), J Guo, David M. Grieger, Duane L. Davis Jan 1997

Puberty Induction In Young Gilts: Ovarian, Uterine, And Pregnancy Responses (1997), J Guo, David M. Grieger, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

The age of gilts when their first litter is produced affects reproductive efficiency and the applications of biotechnologies such as in vitro fertilization and genetic engineering. Therefore, we evaluated the effect of age on response to puberty induction in gilts. Gilts were injected with PG600® followed 96 h later with human chorionic gonadotropin to induce follicular growth and ovulation, respectively. In the first experiment, 84-, 104-,124-, 144-, and 164-d-old gilts were used. For treated gilts, uterine weight, uterine length, number of corpora lutea (CL), peripheral progesterone (P4), and estradiol (~) increased (P<.05) linearly with age. Uterine luminal prostaglandins (PGs) PGE and PGF decreased for gilts treated at 124 d of age or older. The second experiment evaluated pregnancy success for gilts induced to ovulate at 116 vs 151 d of age. The effects of induction of two consecutive estrous cycles also were evaluated. Two of seven (28.6%) and four of nine (44.4%) gilts first treated when 116 and 151 d old but none of seven gilts treated at both 96 and 116 d of age were pregnant 60 d postinseillination. Results indicated that induction of a prior cycle did not inlprove pregnancy rates. However, some gilts in this population maintained pregnancies to 60 d when induced to ovulate and inseminated at 120 d of age.; Swine Day, Manhattan, KS, November 20, 1997

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Summary Of Kansas State University Swine Enterprise Record 1997, Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen Jan 1997

Summary Of Kansas State University Swine Enterprise Record 1997, Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

The Kansas Swine Enterprise Record Program evaluates biological and economic performance and is part of a cooperative record- keeping project with Extension personnel and swine producers in Kansas. Nebraska, and South Dakota. From January 1 to December 31, 1996, profit per cwt of pork produced by these producers (13 semiannual and 18 annual data) averaged $10.62 for the last 6 months of 1996 and $8.08 for the entire year. Producers in the top one-third in terms of profitability had average profits of $15.11 per cwt, whereas producers in the bottom one-third had average profits of $.73 per cwt for the …

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Trends In The Swine Industry: Productivity Measures (1997), Kevin C. Dhuyvetter, J L. Parcell Jan 1997

Trends In The Swine Industry: Productivity Measures (1997), Kevin C. Dhuyvetter, J L. Parcell

Kansas Agricultural Experiment Station Research Reports

Productivity has been trending up in the swine industry over the last 15 years. Much of the increased productivity is due to increased pigs/litter and increased market weights. The efficiency of the breeding herd (litters/sow/year) has been trending up in the U.S. but has remained relatively constant in Kansas.; Swine Day, Manhattan, KS, November 20, 1997

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Fertility After Timed Breeding Using Gnrh, Pgf2, And Norgestomet, K. E. Thompson, G.C. Lamb, T.J. Marple, L.R. Corah, R.M. Mckee, Jeffrey S. Stevenson, David M. Grieger, David A. Nichols Jan 1997

Fertility After Timed Breeding Using Gnrh, Pgf2, And Norgestomet, K. E. Thompson, G.C. Lamb, T.J. Marple, L.R. Corah, R.M. Mckee, Jeffrey S. Stevenson, David M. Grieger, David A. Nichols

Kansas Agricultural Experiment Station Research Reports

At the KSU Purebred Unit, 164 purebred Angus, Hereford, and Simmental cows were used to test a new estrus-synchronization program using GnRH, PGF2, and norgestomet. Cows were inseminated after detected estrus, or in the absence of estrus, inseminations were made at one fixed time after a second injection of GnRH. The treatment consisted of a 100 µg injection of GnRH plus a 6-mg ear implant of norgestomet. Seven days later, the ear implant was removed, and 25-mg of PG F2% was injected. In the absence of estrus, the time-bred group received a second injection of GnRH 48 h after PGF2% …

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Protein Requirements Of Growing Steers Limit-Fed Corn-Based Diets (1997), R.H. Wessels, Evan C. Titgemeyer Jan 1997

Protein Requirements Of Growing Steers Limit-Fed Corn-Based Diets (1997), R.H. Wessels, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Seven steers (513 lb) were used in an experiment to investigate optimal levels and sources of protein in diets limit-fed to allow gain of 2.2 lb/day. Treatments were: a negative-control diet (urea; supplemented, 11.7% crude protein) and six diets containing either 13.5, 15.4, or 17.2% crude protein with either solvent-extracted (SSBM) or expeller-processed (ESBM) soybean meal, in which the soybean meal replaced corn in the control diet. Diets provided 75, 87.5, 100, or 112.5% of estimated crude protein requirement for a gain of 2.2 lb/day. The basal diet contained 83% rolled corn, 15% alfalfa , and .2% urea. Nitrogen (N) …

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Effects Of Various Supplemental Starch And Protein Levels On Ruminal Fermentation And Liquid Passage Of Beef Steers Fed Tallgrass-Prairie Hay (1997), R.C. Cochran, E.S. Vanzant, K. C. Olson, Timothy J. Jones, Evan C. Titgemeyer Jan 1997

Effects Of Various Supplemental Starch And Protein Levels On Ruminal Fermentation And Liquid Passage Of Beef Steers Fed Tallgrass-Prairie Hay (1997), R.C. Cochran, E.S. Vanzant, K. C. Olson, Timothy J. Jones, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

The effect of supplements containing various proportions of degradable intake protein (DIP) and starch on ruminal digestion characteristics of forage-fed beef steers was evaluated. Fluid passage rates, ruminal ammonia (N H), 3 and total volatile fatty acid (VFA) concentrations increased as the amount of supplemental DIP increased. Starch infused at .3% of BW increased molar proportion s of propionate and butyrate and decreased acetate, compared to feeding DIP alone. However, proportions of branched-chain VFA increased with DIP at all levels of starch infusion. Total digestible organic matter intake (TDOMI) was increased with each addition of DIP; however, infusing starch within …

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Use Of Video Image Analysis, Ribeye Grids, And Linear Ribeye Measurements To Predict And Compare Ribeye Areas From Carcass Left And Right Sides (1997), A.T. Waylan, R.E. Campbell, John A. Unruh Jan 1997

Use Of Video Image Analysis, Ribeye Grids, And Linear Ribeye Measurements To Predict And Compare Ribeye Areas From Carcass Left And Right Sides (1997), A.T. Waylan, R.E. Campbell, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Ribeye tracings from 265 beef carcasses were used to compare ribeye areas from right and left sides. When video image analysis (VIA) was used to determine ribeye area, no difference (P=.48) was observed between right and left sides. However, when ribeye area was determine d by using USDA grids, those on the left side were slightly larger (P<.01) than those on right side. This difference is negligible considering the wide rang e in variation (SD=.68 in2) between right and left side ribeye areas. Ribeye area correlations between VIA and grid result s were high for both right (.96) and left (.95) sides. Linear measures (length, midwidth, and widest width) of ribeyes predicted ribeye area with reasonable accuracy ( R2=.90 and .91). These methods provide several options to determine ribeye area. However, data collectors need to realize that the difference between right and left side ribeye areas may be a greater variable than the sensitivity of the method used.

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Evaluation Of The Effects Of Carbohydrate Source And Level Of Degradable Intake Protein On The Intake And Digestion Of Tallgrass-Prairie Hay By Beef Steers (1997), J.S. Heldt, R.C. Cochran, C.P. Mathis, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer, Tiruvoor G. Nagaraja Jan 1997

Evaluation Of The Effects Of Carbohydrate Source And Level Of Degradable Intake Protein On The Intake And Digestion Of Tallgrass-Prairie Hay By Beef Steers (1997), J.S. Heldt, R.C. Cochran, C.P. Mathis, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Thirteen ruminally fistulated steers were used to determine the effect of carbohydrate (CHO) source and degradable intake protein (DIP) on intake and digestion of tallgrass-prairie hay. In general, DIP supplementation had positive effects on intake and digestion, although response varied somewhat with CHO source. Increasing the amount of supplemental CHO generally decreased hay intake, but effects on digestion were dependent on CHO source.

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Effect Of Urea Level In Protein Supplements On Performance By Beef Cows Consuming Low-Quality, Tallgrass-Prairie Forage (1997), B.C. Woods, R.C. Cochran, C.P. Mathis, J.S. Heldt, K. C. Olson, Evan C. Titgemeyer, David M. Grieger Jan 1997

Effect Of Urea Level In Protein Supplements On Performance By Beef Cows Consuming Low-Quality, Tallgrass-Prairie Forage (1997), B.C. Woods, R.C. Cochran, C.P. Mathis, J.S. Heldt, K. C. Olson, Evan C. Titgemeyer, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

One hundred thirty two Hereford x Angus cows grazing tallgrass-prairie range during winter were used to evaluate the effects of varying the amount of supplemental degradable intake protein (DIP) derived from urea on cow and calf performance. Treatment groups were: 0, 15, 30, and 45% of the supplemental DIP from urea. Supplements were formulated to contain 30% crude protein (CP), with approximately 70% of the CP being DIP. Palatability was not a significant problem within the range of urea inclusion tested. In general, prepartum weight and condition losses were greater with increasing levels of urea, although the magnitude of condition …

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Effect Of Supplement Strategy On Intake And Digestion Of Prairie Hay By Beef Steers (1997), R.H. Greenwood, C.A. Loest, Evan C. Titgemeyer, James S. Drouillard Jan 1997

Effect Of Supplement Strategy On Intake And Digestion Of Prairie Hay By Beef Steers (1997), R.H. Greenwood, C.A. Loest, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

The effects of supple mental corn (4 lb/day), rumen-protected methionine (4.25 grams DL-methionine per day), or a cooked molasses block (1 lb/day) on intake and digestion of prairie hay were measured i n beef steers. Steers that consumed the cooked molasses block ate more forage than control steers, whereas forage intake was decreased by supplemental corn. Total tract organic matter digestion, expressed as a percent of intake, was numerically greatest for steers consuming the cooked molasses block. Digestible organic matter intake, a rough estimate of energy available to the steers, was unaffected by methionine but was increased by supplementation of …

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Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Forage Sorghum Hay (1997), C.P. Mathis, R.C. Cochran, B.C. Woods, J.S. Heldt, Gerald L. Stokka, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer Jan 1997

Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Forage Sorghum Hay (1997), C.P. Mathis, R.C. Cochran, B.C. Woods, J.S. Heldt, Gerald L. Stokka, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Sixteen ruminally fistulated beef steers with ad libitum access to forage sorghum hay were used to evaluate the effect of increasing level of degradable intake protein (DIP) on forage intake and digestion. Forage OM intake and total OM intake were enhanced with increasing level of DIP supplementation. Similarly, increases in total OM digestibility and total digestible OM intake (TDOMI) were evident. Compared with the negative control, TDOMI was approximately doubled at the highest level of DIP supplementation.

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The Effects Of Supplementation Frequency And Amount Of Urea In Dry Supplements On Intake And Digestibility Of Low-Quality Tallgrass-Prairie Forage By Beef Steers (1997), B.C. Woods, R.C. Cochran, C.P. Mathis, J.S. Heldt, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer Jan 1997

The Effects Of Supplementation Frequency And Amount Of Urea In Dry Supplements On Intake And Digestibility Of Low-Quality Tallgrass-Prairie Forage By Beef Steers (1997), B.C. Woods, R.C. Cochran, C.P. Mathis, J.S. Heldt, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Sixteen ruminally fistulated steers were used to evaluate the effects of altering supplementation frequency and including urea in dry supplements on forage intake and digestion. Intake of low-quality tallgrass-prairie hay was not affected by supplementation frequency or by the inclusion of urea. Supplementing cattle less frequently resulted in a decrease in diet digestion. However, we observed a slight trend for reduced supplementation frequency to exert a greater impact when cattle were fed supplements that contained urea.

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Influence Of Implanting Grazing Steers With Ralgro® Or Synovex-S® Followed By Synovex® Plus™ Or A Ralgro®/Synovex® Plus™ Reimplant Program In The Feedlot On Pasture/Finishing Performance And Carcass Merit (1997), T.R. Fankhauser, Gerry L. Kuhl, D.D. Simms, Gerald L. Stokka, James S. Drouillard, Dale A. Blasi Jan 1997

Influence Of Implanting Grazing Steers With Ralgro® Or Synovex-S® Followed By Synovex® Plus™ Or A Ralgro®/Synovex® Plus™ Reimplant Program In The Feedlot On Pasture/Finishing Performance And Carcass Merit (1997), T.R. Fankhauser, Gerry L. Kuhl, D.D. Simms, Gerald L. Stokka, James S. Drouillard, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

In an 84-day pasture/132-day finishing study using 480 crossbred steers (675 lb), Ralgro® increased (P<.05) pasture gains 9.3% compared to nonimplanted controls. Gains of Synovex-S®-implanted steers were intermediate. Pasture treatments were split into two finishing-phase implant treatments: Synovex® Plus™ or initial Ralgro with a Synovex Plus reimplant on day 56. No interactions occurred between pasture and finishing implants with respect to finishing performance or carcass traits. Steers on the Synovex Plus treatment gained 11.7% faster and 7.9% more efficiently (P<.01) during the first 56 days of the finishing phase than the Ralgro-implanted steers. However , when those steers were reimplanted with Synovex Plus, they gained 22.2% faster and 21.1% more efficiently (P<.01) during the last 76 days. Over the entire 132-day finishing phase, the feedlot reimplant program improved rate (4.0%; P<.06) and efficiency (7.5%; P<.01) of gain compared to Synovex Plus alone. Overall , gains and intakes during the finishing phase were similar for all pasture implant treatments. However, control pasture steers were 4.5% more efficient (P<.08) than Ralgro and Synovex steers during the finishing phase. Neither pasture or finishing implant treatment influenced carcass traits. This study indicates that implanting during grazing may reduce feed efficiency during the finishing phase, especially when a feedlot reimplant program is not used. However, this finding disagrees with several previous research studies where pasture implantation had no effect on feedlot performance.

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A Survey Of Purchasers Of Wheat Middlings: Storage, Feeding Practices, And Problems (1997), G.W. Warmann, Keith C. Behnke, Dale A. Blasi Jan 1997

A Survey Of Purchasers Of Wheat Middlings: Storage, Feeding Practices, And Problems (1997), G.W. Warmann, Keith C. Behnke, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

We surveyed 290 purchasers of wheat middlings (WM) from a single flour mill located in central Kansas to characterize the incidence of transport and storage problems and to determine intended animal us e and method of feeding. Over 30% of the 106 respondents had encountered storage problems with WM; mold, spoilage, and bridging in the storage structure were the most common. Over 75% of the respondents who reported no storage problems purchased WM during the winter months and avoided WM purchases at other times, especially during the summer.

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Effect Of Revalor-G On The Performance Of Stocker Heifers Grazing Irrigated, Smooth Bromegrass Pasture For A Full Season (1997), Gerry L. Kuhl, M.D. Reynolds, Robert T. Brandt Jr., Dale A. Blasi Jan 1997

Effect Of Revalor-G On The Performance Of Stocker Heifers Grazing Irrigated, Smooth Bromegrass Pasture For A Full Season (1997), Gerry L. Kuhl, M.D. Reynolds, Robert T. Brandt Jr., Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

A 150-day field study was conducted to evaluate single vs. reimplant strategies for stocker heifers grazing irrigated smooth bromegrass . Three hundred forty-three previously nonimplanted British crossbred heifers averaging 494 lb were assigned to one of seven treatments: 1) no implant-control (NC), 2) Revalor-G® (REVG), 3) Ralgro® (RAL), 4) Synovex-H® (SYNH), 5) REVG/REVG, 6) RAL/RAL, and 7) SYNH/SYNH. Reimplanting (Treatments 5, 6 , and 7) was done on day 75 of the trial. In the first 75 days, all implants increased (P<.05) average daily gain (ADG) compared to NC. For the last 75 days (days 75 through 150), heifers implanted with REVG, REVG/REVG, RAL/RAL, and SYNH gained faster (P<.05) than NC or those implanted with RAL, and SYNH/SYNH. No significant differences occur red among the latter three treatments. Over the entire trial, there was no advantage to reimplanting heifers with REVG or RAL. SYNH/ SYNH heifers gained less (P<.05) than their single -implanted counterparts.

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Effects Of Dietary Energy Density And Lysine:Calorie Ratio On The Growth Performance Of Growing Pigs And Subsequent Finishing Performance (1997), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1997

Effects Of Dietary Energy Density And Lysine:Calorie Ratio On The Growth Performance Of Growing Pigs And Subsequent Finishing Performance (1997), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

One hundred twenty crossbred gilts were used in a growth trial to evaluate the effects of increasing dietary energy density and lysine:calorie ratio on growing pig growth performance and subsequent finishing performance. Feeding 3% choice white grease and 3.45 g lysine:Mcal ME maximized growth performance of growing gilts. Choice white grease additions and increasing lysine:calorie ratio during growing (65 to 160 lb) did not affect carcass back fat or loin depth at 235 lb.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Low-Protein, Amino Acid-Fortified Diets, Formulated On A Net Energy Basis, On The Growth Performance And Carcass Characteristics Of Finishing Pigs (1996), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1997

Effects Of Low-Protein, Amino Acid-Fortified Diets, Formulated On A Net Energy Basis, On The Growth Performance And Carcass Characteristics Of Finishing Pigs (1996), J W. Smith Ii, P R. O'Quinn, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Two hundred eighty-eight gilts were used to determine the effects of corn-soybean meal or low-protein, amino acid-fortified diets, formulated on a net energy (NE) basis on growth perforn1ance and carcass characteristics. Pigs fed high NE grew faster from 105 to 165 lb. However, pigs fed diets with intact protein grew faster and more efficiently during the finishing period and for the entire trial than those fed low protein, amino acidfortified diets. Carcass data revealed that pigs consuming high NE were fatter and had lower percentage lean than pigs consuming low NE. Additionally, longissimus muscle area tended to be greater in …

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Effects Of Starch Gelatinization On Weanling Pig Performance (1997), K Hongtrakul, J R. Bergstrom, W B. Nessmith Jr, I H. Kim, Robert D. Goodband, Keith C. Behnke, Jim L. Nelssen, Michael D. Tokach Jan 1997

Effects Of Starch Gelatinization On Weanling Pig Performance (1997), K Hongtrakul, J R. Bergstrom, W B. Nessmith Jr, I H. Kim, Robert D. Goodband, Keith C. Behnke, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Two hundred and ten weanling pigs were fed diets containing nonextruded corn (14.5% gelatinization; control) or corn that was extruded to provide 38.7%, 52.7%, 64.4%, or 89.3% starch gelatinization in the complete diet. With increasing gelatinization, ADG and ADFI decreased and then increased. but apparent digestibility of DM, CP, and energy increased then decreased. These results suggest that the degree of starch gelatinization has an inconsistent effect on weanling pig performance.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Sorghum Genotype And Processing Method On Production Characteristics And Growth Performance Of Nursery Pigs (1997), J R. Froeschner, Z J. Cheng, Joe D. Hancock, Keith C. Behnke Jan 1997

Effects Of Sorghum Genotype And Processing Method On Production Characteristics And Growth Performance Of Nursery Pigs (1997), J R. Froeschner, Z J. Cheng, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Three sorghum varieties that varied in starch composition were fed to Phase II and Phase III pigs to determine if feeding sorghum high in waxiness provided a benefit. In addition, each variety was fed as a meal, standard pellet, and an expanded pellet. As level of waxiness increased, pellet durability index increased numerically and the amount of fines produced decreased numerically. In addition, thermal processing of the diets increased the feeding value. Sorghum genotype had little effect on pig performance.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Source And Level Of Added Chromium On Growth Performance Of Starter Pigs (1997), P R. O'Quinn, R E. Musser, K Q. Owen, S A. Blum, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1997

Effects Of Source And Level Of Added Chromium On Growth Performance Of Starter Pigs (1997), P R. O'Quinn, R E. Musser, K Q. Owen, S A. Blum, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A 35-d growth trial was conducted with conventionally weaned nursery pigs to evaluate the efficacy of supplemental chromium (Cr) as either chromium nieotinate (CrNic) or chromium picolinate (CrPic). Neither source nor level of supplemental Cr had any effect on weanling pig growth performance or immune status. Equal levels of CrNic and CrPic produced similar results, except that pigs fed CrPic had higher serum Cr concentrations than pigs fed CrNic. These data suggest no beneficial responses to supplemental CrNic or CrPic in nursery pig diets.; Swine Day, Manhattan, KS, November 20, 1997

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Effects Of Tetracycline On Shedding Of Susceptible And Resistant Salmonella Spp. Experimentally Inoculated Into Pigs (1997), K M. Claussen, D R. Hyatt, J C. Galland, Jerome C. Nietfeld, J M. Sargeant, Steven S. Dritz Jan 1997

Effects Of Tetracycline On Shedding Of Susceptible And Resistant Salmonella Spp. Experimentally Inoculated Into Pigs (1997), K M. Claussen, D R. Hyatt, J C. Galland, Jerome C. Nietfeld, J M. Sargeant, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

The objective of this experiment was to study the influence of tetracycline on the transfer of antibiotic resistance in an in vivo swine model experimentally infected with antibiotic-resistant and antibiotic susceptible Salmonella spp. Tetracycline reduced the amount and duration of shedding of tetracycline- susceptible Salmonella. However, tetracycline had no effect on shedding of resistant Salmonella. We also have evidence that resistance was transferred from the resistant to the susceptible strain of Salmonella.; Swine Day, Manhattan, KS, November 20, 1997

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