Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Journal

1997

Other Animal Sciences

Keyword

Articles 1 - 30 of 61

Full-Text Articles in Life Sciences

Determinants Of Prices For Purebred Beef Bulls, D.D. Simms, R.P. Jr. Bolze, J. Geske, Kevin C. Dhuyvetter, Ted C. Schroeder Jan 1997

Determinants Of Prices For Purebred Beef Bulls, D.D. Simms, R.P. Jr. Bolze, J. Geske, Kevin C. Dhuyvetter, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Animal characteristics and sale price data for 1651 bulls sold at 26 Kansas purebred beef sales during 1993 were collected and analyzed to determine which factors affected price differentials for beef bulls. Bull sale price varied, from $650 to $20,000 per head. Regression analysis was used to determine the price differential associated with bull traits and marketing factors. Black bulls in the Simmental, Gelbvieh, and Limousin breeds brought premium s of 15% to 53% compared to their nonblack peers. Conformation, disposition , and muscling affected sell prices. Bulls with lower birth weights and birth weight expected progeny differences (EPD) brought ...


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

Protein Requirements Of Growing Steers Limit-Fed Corn-Based Diets, 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 ...


Evaluation Of The Protein Characteristics Of Four Diverse Grasses, C.P. Mathis, I.E.O. Abdelgadir, R.C. Cochran, J.S. Heldt, B.C. Woods, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer Jan 1997

Evaluation Of The Protein Characteristics Of Four Diverse Grasses, C.P. Mathis, I.E.O. Abdelgadir, R.C. Cochran, J.S. Heldt, B.C. Woods, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Forage protein characteristics in four grasses were evaluated by the nylon bag method. All of the forages used (Bermudagrass hay, brome hay, forage sorghum hay, and prairie hay) were of relatively low quality, except the Bermudagrass, which was of average quality. The forages differed in the size of different protein fractions and in the rate and extent of protein degradation. Predicted extent of ruminal protein degradation (i.e., ruminal protein availability) was lowest for prairie hay, intermediate for Bermudagrass and forage sorghum hay, and highest for the brome hay.


Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Forage Sorghum Hay, 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, 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.


Effect Of Urea Level In Protein Supplements On Performance By Beef Cows Consuming Low-Quality, Tallgrass-Prairie Forage, 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, 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 ...


Economics Of Sealing Horizontal Silos, G.L. Huck, J.E. Turner, M.K. Siefers, B.E. Brent, K.K. Bolsen, Matthew A. Young, Ronald V. Pope Jan 1997

Economics Of Sealing Horizontal Silos, G.L. Huck, J.E. Turner, M.K. Siefers, B.E. Brent, K.K. Bolsen, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Determining the value of silage saved by effectively sealing a horizontal silo requires only a few simple calculations, but it is still a concept that is often overlooked by many livestock producers who store large amounts of silage in that manner. Kansas produces about 3.0 million tons of silage annually, primarily from corn and sorghum. A majority of this silage is made and stored in either bunker, trench, or "drive-over" pile silos . Only 20 to 30% of these silos are sealed after filling. Producers who do not seal need to take a second look at the economics of this ...


Rapid Nutrient Evaluation Of Sorghum Silages Using Two Types Of Near-Infrared Reflectance Spectroscopy, K.J. Budiongo, L.H. Harbers, B.W. Seabourn, K.K. Bolsen, B.E. Brent Jan 1997

Rapid Nutrient Evaluation Of Sorghum Silages Using Two Types Of Near-Infrared Reflectance Spectroscopy, K.J. Budiongo, L.H. Harbers, B.W. Seabourn, K.K. Bolsen, B.E. Brent

Kansas Agricultural Experiment Station Research Reports

This research was designed to develop a set of prediction equations to measure nutrient composition of Kansas sorghum silages using both a portable and a research type near-infrared spectrometer (NIRS). A robust set of equations for dry matter, crude protein, neutral detergent fiber, and acid detergent fiber was developed for a wide range of sorghum phenotypes . NIRS analysis of sorghum silages is feasible with both a tilting filter (portable) and research instrument with a grating monochrometer.


A Novel Estrus-Synchronization Program For Anestrous And Cycling, Suckled, Beef Cows, W.L. Forbes, L.R. Corah, K. E. Thompson, G.C. Lamb, David M. Grieger, Jeffrey S. Stevenson Jan 1997

A Novel Estrus-Synchronization Program For Anestrous And Cycling, Suckled, Beef Cows, W.L. Forbes, L.R. Corah, K. E. Thompson, G.C. Lamb, David M. Grieger, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

We used four herds at three Kansas ranches to evaluate the potential of two new estrus synchronization strategies to increase estrus expression and fertility of 911 crossbred suckled beef cows. The treatments included: 1) 100 μg of GnRH and a 6-mg norgestomet ear implant on day -7 and 25 mg of PG F2" and implant removal on day 0 (GnRH+NORG+PG F2"); 2) 100 μg of GnRH on day - 7 and 25 mg of PGF 2" on day 0 (GnRH+PG F2"); and 3 ) (control) 25- mg injections of PG F2" on days -14 and 0; (2xPGF2" control) . The ...


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 ...


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

Trends In The Swine Industry: Productivity Measures, 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


The Effect Of Vitamin E, Selenium, And Copper Supplementation Preweaning On The Performance And Immune Response Of Beef Calves, C.L. Wright, L.R. Corah, Gerald L. Stokka, Frank Blecha, G. Lynch Jan 1997

The Effect Of Vitamin E, Selenium, And Copper Supplementation Preweaning On The Performance And Immune Response Of Beef Calves, C.L. Wright, L.R. Corah, Gerald L. Stokka, Frank Blecha, G. Lynch

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effect of vitamin E, selenium, and copper supplementation on the pre- and postweaning performance, immune responses, and serum metabolites o f crossbred beef calves. In experiment 1, 71 calves were blocked by weight and allotted to one of four individually fed treatments: 1) control supplement (2 lb grain creep ) (CS), 2) CS + .27 mg selenium + 500 IU vitamin E, 3) CS + 9.1 mg copper, and 4) combination of treatments 2 and 3. In experiment 2, 80 crossbred beef calves were blocked by weight and allotted to 5 individually fed treatments: 1) control ...


Roundup 1997, Kansas State University. Agricultural Research Southeast Agricultural Research Center Center--Hays Jan 1997

Roundup 1997, Kansas State University. Agricultural Research Southeast Agricultural Research Center Center--Hays

Kansas Agricultural Experiment Station Research Reports

Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center-Hays. The purpose is to communicate timely, applicable research information to producers and extension personnel. The research program of the Agricultural Research Southeast Agricultural Research Center Center-Hays is dedicated to serving the people of Kansas by developing new knowledge and technology to stabilize and sustain long-term production of food and fiber in a manner consistent with conservation of natural resources, protection of the environment, and assurance of food safety. Primary emphasis is on production efficiency through optimization of inputs in order to increase profit margins ...


Effects Of Poultry Fat And Choice White Grease On Finishing Pig Growth Performance, General Carcass Characteristics, And Pork Longissimus Muscle Quality, 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, 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 ...


Effects Of Sorghum Genotype And Processing Method On Production Characteristics And Growth Performance Of Nursery Pigs, 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, 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


Pyridoxine, But Not Thiamin, Improves Growth Performance Of Weanling Pigs, 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, 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 ...


Effects Of Tetracycline On Shedding Of Susceptible And Resistant Salmonella Spp. Experimentally Inoculated Into Pigs, 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, 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


Influence Of Dietary Tryptophan Levels On The Growth Performance Of Segregated Early-Weaned Pigs (10 To 20 Lb), J A. Loughmiller, D A. Knabe, K Hongtrakul, P R. O'Quinn, S Moser, J W. Smith Ii, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach Jan 1997

Influence Of Dietary Tryptophan Levels On The Growth Performance Of Segregated Early-Weaned Pigs (10 To 20 Lb), J A. Loughmiller, D A. Knabe, K Hongtrakul, P R. O'Quinn, S Moser, J W. Smith Ii, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

A total of 360 pigs (averaging 13 d of age and 9.4 lb) was used to determine the effects of increasing dietary tryptophan:lysine ratio on the growth performance of segregated early-weaned (SEW) pigs. Two apparent digestible lysine levels (1. 15 and 1.50 %) and six apparent digestible tryptophan: lysine ratios (12.5, 15, 17.5, 20, 22.5 and 25%) were fed from d 0 to 16 after weaning. Lysine x tryptophan interactions were observed for ADG and F/G. Increasing the tryptophan: lysine ratio in the low lysine diets improved ADG and F/G in a quadratic ...


Lagoon Seepage Through Soil Liners, James P. Murphy, Joseph P. Harner Jan 1997

Lagoon Seepage Through Soil Liners, James P. Murphy, Joseph P. Harner

Kansas Agricultural Experiment Station Research Reports

Most compacted soils can be used for lagoon liners to achieve seepage guidelines established by the Kansas Department of Health and Environment.; Swine Day, Manhattan, KS, November 20, 1997


Summary Of Grazing Research On Kansas Crp Land, Michael R. Langemeier, P.D. Ohlenbusch, R.D. Jones Jan 1997

Summary Of Grazing Research On Kansas Crp Land, Michael R. Langemeier, P.D. Ohlenbusch, R.D. Jones

Kansas Agricultural Experiment Station Research Reports

Animal performance and n et return per acre were examined for four CRP research sites in Kansas in 1 994, 1995, and 1996. Both mowing and prescribed burning increased animal performance in 1994. Mowing was economically feasible on one of the four sites. Prescribed burning was economically feasible on three of four sites. Mowing and burning treatments were not repeated i n 1995 or 1996. Net returns per acre for the site that was grazed with cowcalf pairs ranged from -$8.55 to -$25.54. For the sites grazed with stockers, net returns per acre varied from -$18.67 to ...


Failure Of Precalving Supplementation Of Vitamin E And Dietary Fat To Alter Reproductive Performance Of First Lactation Cows Or The Health Of Their Calves, J.L. Coalson, L.R. Corah, Gerald L. Stokka, Frank Blecha Jan 1997

Failure Of Precalving Supplementation Of Vitamin E And Dietary Fat To Alter Reproductive Performance Of First Lactation Cows Or The Health Of Their Calves, J.L. Coalson, L.R. Corah, Gerald L. Stokka, Frank Blecha

Kansas Agricultural Experiment Station Research Reports

A study was conducted to determine the effect of precalving supplementation with vitamin E and fat on the reproductive performance of first lactation cows and the health of their calves. Approximately 50 days before the first expected calving, 48 crossbred heifers were allotted to four treatments: 1) basal diet that consisted of 13 lb of prairie hay, 7.3 lb of milo, and 1 lb of supplement per heifer per day; 2) basal diet+supplement bringing the diet to 4% fat; 3) basal diet+supplement providing 1000 IU supplemental vitamin E/day; and 4) basal diet plus both fat and ...


Effect Of Heifer Source On Reproductive Performance, Culling, Marketing And Profitability For A Commercial Heifer Development Program, J.M. Lynch, G.C. Lamb, L.R. Corah, David M. Grieger Jan 1997

Effect Of Heifer Source On Reproductive Performance, Culling, Marketing And Profitability For A Commercial Heifer Development Program, J.M. Lynch, G.C. Lamb, L.R. Corah, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

A commercial heifer development operation purchased 483 weanling Angus x Hereford heifers from 11 sources. Heifers were fed a common silage-based diet through an initial developmental period and retained or culled based on average daily gain, pelvic area, and disposition . The percentage of heifers culled from each source ranged from 18.1% to 94.7% and were either sold directly through a local sale barn or sent to a feedlot with retained ownership . Estrus was synchronized, and heifers were artificially inseminated (AI) for 30 days followed by 15 days of natural mating. First service conception rates for each source ranged ...


High Carbon Dioxide, Modified-Atmosphere Packaging (Map) For Beef Steaks, S.E. Luchsinger, Melvin C. Hunt, Donald H. Kropf Jan 1997

High Carbon Dioxide, Modified-Atmosphere Packaging (Map) For Beef Steaks, S.E. Luchsinger, Melvin C. Hunt, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

To determine the effects of storage in a high-carbon dioxide, modified-atmosphere package (MAP) on shelf life, beef strip steaks were packaged under 30% CO2-70% N2 and stored for up to 42 days at 30 or 38 ÌŠF. Aerobic plate counts (APC) and lactic acid bacteria (LAB) counts in these ExtendPak™ packages were well below the threshold of spoilage even after 42 days of MAP storage. After 28 days of storage, steaks stored in vacuum packages had APC counts 1.0 log 10 greater than steaks in MAP. APCs increased during a 5-day display period in steaks store d in vacuum ...


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

A Survey Of Purchasers Of Wheat Middlings: Storage, Feeding Practices, And Problems, 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.


Effect Of Bacterial Inoculants On The Fermentation And Preservation Efficiencies And Nutritive Value Of Alfalfa Silage For Growing Steers, K.K. Bolsen, G.L. Huck, M.K. Siefers, J.E. Turner, S.A. Anderson, J.S. Pendergraft, Matthew A. Young, Ronald V. Pope Jan 1997

Effect Of Bacterial Inoculants On The Fermentation And Preservation Efficiencies And Nutritive Value Of Alfalfa Silage For Growing Steers, K.K. Bolsen, G.L. Huck, M.K. Siefers, J.E. Turner, S.A. Anderson, J.S. Pendergraft, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Two silage bacterial inoculants from Pioneer Hi-Bred International, Inc. were evaluated using second-cutting alfalfa. The Pioneer brand 1174® inoculant and a Pioneer experimental inoculant each increased the rate and efficiency of the ensiling process in both farm-scale and laboratory-scale silos. The two inoculants increase d the DM recovery in the farm-scale silos compared to the untreated silage. Steers fed the experimental inoculant-treated silage gained faster (P<. 10) (2.56 vs. 2.37 lb per day), had a 4.0% higher DM intake, and were 4.3% more efficient than steers fed the untreated silage. The 1174-treated silage supported a numerically but not statistically better steer performance than the control silage. When the DM recovery results were combined with the feed per gain results, the silages with 1174 and experimental inoculant produced 5.3 and 10.5 lb more steer gain per ton of crop ensiled, respectively, than the control silage.


Effects Of Low-Protein, Amino Acid- Fortified Diets, Formulated On A Net Energy Basis, On The Growth Performance And Carcass Characteristics Of Finishing Pigs, 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, 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 ...


Effects Of A High Protein, Whey Protein Concentrate And Spray-Dried Animal Plasma On Growth Performance Of Weanling Pigs, 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, 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


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

Puberty Induction In Young Gilts: Ovarian, Uterine, And Pregnancy Responses, 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


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, 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, 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 ...


Fetal And Maternal Responses To High Feed Intake From Day 29 To 45 Of Gestation, R E. Musser, J W. Smith Ii, L L. Burum, C J. Samland, Duane L. Davis, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Theresa J. Rathbun, Steven S. Dritz Jan 1997

Fetal And Maternal Responses To High Feed Intake From Day 29 To 45 Of Gestation, R E. Musser, J W. Smith Ii, L L. Burum, C J. Samland, Duane L. Davis, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Theresa J. Rathbun, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Parity-four sows were fed either 4.0 Ib/d (control, n = 6) or 14.0 Ib/d (high, n = 9) of feed from d 29 to 45 of gestation. On d 45 of ges~tion, sows were slaughtered and uteri collected for fetal and placental measurements. High-feed-intake sows gained more weight from. d 29 to 45 compared to control sows. Providing feed in excess of established requirements to gestating sows from d 29 to 45 of gestation increased IGF-I concentrations in maternal plasma and decreased crown-rump length variation of the fetus. Increased feed intake resulted in a removal of the ...


Historical Economic Returns To Alternative Swine Enterprises In Kansas, R Jones, Michael R. Langemeier Jan 1997

Historical Economic Returns To Alternative Swine Enterprises In Kansas, R Jones, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

This study examines historical net returns to average Kansas swine producers over the past 16 years. Swine production has been a profitable enterprise. As expected, average returns per head have been higher for farrow-to-finish producers than for feeder pig finishers, and farrow-to-finish producers have nearly always been able to at least cover variable costs of production.; Swine Day, Manhattan, KS, November 20, 1997