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

Digital Commons Network™

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

Life Sciences

PDF

Kansas Agricultural Experiment Station Research Reports

1992

Keyword

Articles 1 - 30 of 98

Full-Text Articles in Entire DC Network

Comparison Of Oral Iron And Injectable Iron For The Prevention Of Iron Deficiency Anemia In Baby Pigs (1992), K B. Beeman, D A. Schoneweis Jan 1992

Comparison Of Oral Iron And Injectable Iron For The Prevention Of Iron Deficiency Anemia In Baby Pigs (1992), K B. Beeman, D A. Schoneweis

Kansas Agricultural Experiment Station Research Reports

One of two oral iron compounds or an injectable iron (100 mg iron per treatment) were administered to pigs on d 1 and 15 postfarrowing, and they were compared with untreated littermates. There was no significant difference between the pigs receiving the oral iron and the negative controls in serum iron or total iron binding capacity. Pigs that received iron by injection had higher serum iron and packed cell volume and a lower total iron binding capacity compared with pigs given oral iron or untreated controls.; Swine Day, Manhattan, KS, November 19, 1992

Go to article

Moist Extrusion Of Soy Products Influences Growth Performance And Nutrient Utilization In The Early-Weaned Pig (1992), K G. Friesen, Jim L. Nelssen, Robert D. Goodband, Keith C. Behnke Jan 1992

Moist Extrusion Of Soy Products Influences Growth Performance And Nutrient Utilization In The Early-Weaned Pig (1992), K G. Friesen, Jim L. Nelssen, Robert D. Goodband, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

One hundred and seventy pigs (initially 12.81b and 21 d of age) were used to determine the effect of moist extrusion on soybean products when fed to the early-weaned pig. Dietary treatments, including a positive control, fed d 0 to 14 postweaning were arranged in a 2 x 3 factorial. Pigs were fed one of the seven diets: 1) control diet (milk): corn+dried skim milk+dried whey+casein; 2 and 3) corn+defatted soy flakes with or without moist extrusion; 4 and 5) corn+toasted soy flour with or without moist extrusion; and 6 and 7) corn+ soy protein concentrate with or without moist …

Go to article

Causes Of Diarrhea, Pneumonia, And Abortion In 1991 Cattle Submissions To The Ksu Veterinary Diagnostic Laboratory (1992), R.K. Frank, M.W. Vorhies, M. M. Chengappa Jan 1992

Causes Of Diarrhea, Pneumonia, And Abortion In 1991 Cattle Submissions To The Ksu Veterinary Diagnostic Laboratory (1992), R.K. Frank, M.W. Vorhies, M. M. Chengappa

Kansas Agricultural Experiment Station Research Reports

Causes of diarrhea, pneumonia, and abortion in Kansas cattle submissions to the Kansas State University Veterinary Diagnostic Laboratory during 1991 were summarized. Antimicrobial susceptibility results for Pasteurella haemolytica, Pasteurella multocida, Hemophilus somnus, and Salmonella spp., the common causes of pneumonia and/or diarrhea in cattle with increasing antibiotic resistance patterns, were also summarized. The most commonly diagnosed causes of diarrhea in young calves (under 1 month of age) were coronavirus, Escherichia coli, and Salmonella. The three most common causes of diarrhea in 1 to 18 month-old cattle were BVD virus, coccidia, and Salmonella. Most respiratory submissions were 7- to 18-month-old cattle. …

Go to article

Production And Marketing Factors Influencing Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder Jan 1992

Production And Marketing Factors Influencing Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

An analysis of more than 1400 pens of cattle marketed during 1990 examined the influence of several cattle traits and marketing factors on fed cattle prices. Cattle quality grade had an important impact on packer bids and feedyard asking prices. However, both feedyard asking and packer purchase prices reflected less than 25%, on average, of estimated wholesale value differentials. Other factors, including estimated dressing percentage, finish uniformity, cattle weight, number of head purchased, presence of heiferettes, and cattle type had significant price impacts. Feedyards generally received what they asked for cattle; 65% of the pens sold for their asking prices. …

Go to article

Effect Of 1174® Silage Inoculant On The Fermentation Of Corn Silages (1992), K.K. Bolsen, C. Lin, B.E. Brent, J.E. Bradford, A.M. Feyerherm Jan 1992

Effect Of 1174® Silage Inoculant On The Fermentation Of Corn Silages (1992), K.K. Bolsen, C. Lin, B.E. Brent, J.E. Bradford, A.M. Feyerherm

Kansas Agricultural Experiment Station Research Reports

The effect of 1174® Silage Inoculant on the ensiling process was studied using three Pioneer corn hybrids. All hybrids fermented rapidly, and 1174 did not significantly influence any of the fermentation characteristics during the 120 days. The epiphytic lactic acid bacteria (LAB) counts on the chopped corn plants were high; 14 times greater than the numbers of LAB provided by the inoculant. Although during fermentation, statistically significant differences occurred among the hybrids for fermentation end-products, no observed trends suggested that hybrid effects were real.

Go to article

Effects Of Biomate® Inoculant And Dextrose On The Fermentation Of Alfalfa Silages (1992), C. Lin, K.K. Bolsen, J.E. Bradford, B.E. Brent, A.M. Feyerherm, W.R. Aimutis Jan 1992

Effects Of Biomate® Inoculant And Dextrose On The Fermentation Of Alfalfa Silages (1992), C. Lin, K.K. Bolsen, J.E. Bradford, B.E. Brent, A.M. Feyerherm, W.R. Aimutis

Kansas Agricultural Experiment Station Research Reports

This study documented once again that ensiling alfalfa is difficult and unpredictable. Adding 2% dextrose or Biomate® inoculant alone or in combination had little influence on the ensiling process but did improve fermentation efficiency somewhat. The pre-ensiling characteristics (i.e., dry matter (DM) and water soluble carbohydrate (WSC) values, buffering capacity, and epiphytic microflora) at the different cuttings and stages of maturity undoubtedly influenced the effectiveness of the two additives. Apparently, alfalfa often has too little WSC and too much buffering capacity to produce adequately preserved silage, especially when ensiled at a low DM content (less than 30 to 34%).

Go to article

Influence Of Weaning Weight And Growth During The First Week Postweaning On Subsequent Pig Performance (1992), L J. Kats, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1992

Influence Of Weaning Weight And Growth During The First Week Postweaning On Subsequent Pig Performance (1992), L J. Kats, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 1,350 pigs was used in three growth trials to determine the influence of weaning weight and average daily gain during the first week postweaning on subsequent growth performance. Average initial weight and age were 13.7 lb and 21 d, respectively. Pigs were weighed on d 0, 7, 28, and 56 postweaning in all three trials. Pigs were also weighed at market in trial 1. Weaning weight influenced postweaning growth performance such that each additional pound at weaning translated into approximately 2 lb by d 56 postweaning and 4 lb at market. These results indicate the importance of …

Go to article

Influence Of High Levels Of Zinc Oxide In Starter Diets On Pig Performance (1992), Lisa M. Tokach, Steven C. Henry, T A. Marstelller, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1992

Influence Of High Levels Of Zinc Oxide In Starter Diets On Pig Performance (1992), Lisa M. Tokach, Steven C. Henry, T A. Marstelller, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine the influence of high levels of zinc oxide on starter pig performance. Two dietary treatments (110 or 3,110 ppm zinc) were used in each trial. In trial 1, 180 pigs (17 d of age and 10.9 lb) were blocked by weight and allotted to 20 pens for a total of eight or nine pigs/pen and 10 pens/treatment. In trial 2, 168 pigs (21 d of age and 12.8 lb) were blocked by weight and sex and allotted to six pens for a total of 28 pigs/pen and three pens/treatment. Experimental diets were fed for …

Go to article

Use Of Whey Protein Concentrate, Dried Buttermilk, And Porcine Plasma Protein To Replace Dried Skim Milk In Diets For Weanling Pigs (1992), B T. Richert, Robert H. Hines, Joe D. Hancock Jan 1992

Use Of Whey Protein Concentrate, Dried Buttermilk, And Porcine Plasma Protein To Replace Dried Skim Milk In Diets For Weanling Pigs (1992), B T. Richert, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred thirty-two weanling pigs, with an average age of 19 d and average weight of 8.4Ib, were used in a 28-d growth assay to determine the effects of replacing dried skim milk (DSM) with dried whey protein concentrate (WPC), dried buttermilk (DBM), and spray-dried porcine plasma (SDPP). Treatments were 1) 20% DSM20% dried whey-based control, 2) WPC used to replace the DSM of Diet 1, 3) DBM used to replace the DSM of Diet 1, and 4) SDPP and lactose used to replace the DSM of Diet 1. All diets were formulated to 1.4% lysine, 25% lactose, 5% fat, …

Go to article

Ksu Swine Enterprise Record Summary (1992), Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach Jan 1992

Ksu Swine Enterprise Record Summary (1992), Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Approximately 35 swine operations are enrolled in the 1992 Kansas Swine Enterprise Record Program. This program evaluates physical and economic performance and is part of a cooperative record-keeping project with extension personnel and swine producers in Kansas, Nebraska, and South Dakota. Records are summarized every 6 months, and the corresponding data are pooled to form state and regional averages. This paper summarizes the data for 22 farrow-to-finish operations in Kansas that kept records during the first 6 months of 1992. Profit per cwt. of pork produced for these 22 producers averaged $1.13. Profits varied substantially between producers. Producers in the …

Go to article

Effects Of The Interrelationship Of Porcine Somatotropin Administration And Dietary Phosphorus On Growth Performance In Developing Gilts (1992), T L. Weeden, J A. Hansen, K G. Friesen, B T. Richert, Jim L. Nelssen, Robert D. Goodband Jan 1992

Effects Of The Interrelationship Of Porcine Somatotropin Administration And Dietary Phosphorus On Growth Performance In Developing Gilts (1992), T L. Weeden, J A. Hansen, K G. Friesen, B T. Richert, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Seventy-two gilts (initial weight = 127 lb) were used to determine effects of the interrelationship of porcine somatotropin (pST) administration and dietary phosphorus (P) on growth performance of finishing gilts (127 to 235 lb) and for a 35 d postfinishing phase following withdrawal of pST administration. Gilts were injected daily with placebo (control) or 4 mg pST and fed .4, .6, or .8% P in the fmishing phase. Administration of pST increased average daily gain (ADG), improved feed efficiency (FIG), and decreased average daily feed intake (ADFI) during the finishing phase. Increasing dietary P resulted in increased ADG from d …

Go to article

The Influence Of Genotype, Sex, And Dietary Lysine On Subprimal Cut Distribution Of 230 And 280 Lb. Finishing Pigs (1992), B L. Dunn, K G. Friesen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh Jan 1992

The Influence Of Genotype, Sex, And Dietary Lysine On Subprimal Cut Distribution Of 230 And 280 Lb. Finishing Pigs (1992), B L. Dunn, K G. Friesen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

One hundred sixteen pigs were used to determine effects of the interrelationship among genotype, sex, and dietary lysine on subprimal cut distribution of pigs fed to 230 and 280 lb. In a 2 X 2 X 2 factorial arrangement, barrows and gilts, previously characterized as having either high or medium lean-gain potential, were fed one of two dietary lysine regimens. One pig per pen was slaughtered when the mean weight of pigs in a pen reached 230 lb and the remaining two pigs were fed until the mean weight reached 280 lb. When fed to either 230 or 280 lb, …

Go to article

Influence Of High Levels Of B-Vitamins On Starter Pig Performance (1992), L J. Kats, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 1992

Influence Of High Levels Of B-Vitamins On Starter Pig Performance (1992), L J. Kats, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 318 pigs was used in a 25-d growth trial to determine the influence of high levels of B-vitamins on starter pig performance. At weaning (l6-d of age), pigs were blocked by weight to one of six dietary treatments based on B-vitamin level. The negative control diet contained the standard KSU B-vitamin additions. The next four diets contained vitamin B12, riboflavin, pantothenic acid, or niacin at lOx the level recommended by NRC (1988). The positive control diet contained all four vitamins at 10 x the levels suggested by NRC (1988). B-vitamin inclusion rate did not influence average daily …

Go to article

Ovarian Follicular Waves And Secretion Of Follicle-Stimulating Hormone After Administration Of Gnrh At Estrus (1992), J.R. Pursley, Jeffrey S. Stevenson Jan 1992

Ovarian Follicular Waves And Secretion Of Follicle-Stimulating Hormone After Administration Of Gnrh At Estrus (1992), J.R. Pursley, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to examine the effects of GnRH on the secretion of FSH, LH, estradiol, and progesterone in serum and changes in ovarian structures. Dairy cows were assigned randomly to receive either 100 μg of GnRH or saline 12 hr after estrus (day 0) was detected. Blood was collected daily to assess changes in serum estradiol and progesterone and every 12 min for 8 hr on days 8 and 15 after estrus to assess concentrations of FSH and LH. Diameter and number of follicles were determined daily by real-time ultrasonography. Two patterns of follicular development were observed. The …

Go to article

Induction Of Estrus In Thyroidectomized-Ovariectomized, Nonlactating, Holstein Cows (1992), R.E. Stewart, M.O. Mee, I. Rettmer, Jeffrey S. Stevenson Jan 1992

Induction Of Estrus In Thyroidectomized-Ovariectomized, Nonlactating, Holstein Cows (1992), R.E. Stewart, M.O. Mee, I. Rettmer, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Low thyroid activity (hypothyroidism) has been reported to decrease sexual behavior associated with reproduction in several species. Using estradiol benzoate (EB) and progesterone (P ), we attempted to induce 4 estrus in hypothyroid cows. Thyroid glands (thyroidectomy) and ovaries (ovariectomy) were removed surgically from nonlactating and nonpregnant Holstein cows that were culled from the Kansas State University dairy herd. Eight cows were thyroidectomized and ovariectomized (THYOVEX) and another four cows were ovariectomized only (OVEX). Starting 9 hr after injection of EB, cows were continuously observed for estrus for 36 hr. Frequencies of mounting activity and standing behavior were recorded for …

Go to article

The Effects Of Slow-Release Copper Boluses On Cow Reproductive Performance And Calf Growth (1992), J.D. Arthington, Robert L. Larson, L.R. Corah Jan 1992

The Effects Of Slow-Release Copper Boluses On Cow Reproductive Performance And Calf Growth (1992), J.D. Arthington, Robert L. Larson, L.R. Corah

Kansas Agricultural Experiment Station Research Reports

Two Kansas cow/calf herds known to be copper deficient were utilized to examine the effect of slow-release copper boluses. In herd I, 34 spring-calving cows and calves were divided into a treated and control group at 3-4 months following calving. In herd II, 1106 fall-calving cows and 172 calves were divided into a treated and control group at 3-4 months following calving. In both herds, cow liver and serum samples were collected and assayed for copper and iron. Cows in herd II were also examined for various reproductive parameters. Calf ADG was monitored over a 42-day treatment period in herd …

Go to article

Performance And Carcass Characteristics Of Cull Beef Cows Implanted With Growth Promotants And Fed A High Concentrate Ration (1992), C.D. Cranwell, D.D. Simms, J.R. Brethour, John A. Unruh Jan 1992

Performance And Carcass Characteristics Of Cull Beef Cows Implanted With Growth Promotants And Fed A High Concentrate Ration (1992), C.D. Cranwell, D.D. Simms, J.R. Brethour, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Open, cull beef cows fed a high concentrate ration for 28 or 56 days and implanted with Finaplix-H®, Synovex-H®, or both had improved gain and feed efficiency compared to controls (nonimplanted cows). Changes in ultrasound-measured backfat (12th rib) of implanted cows and controls were similar in both feeding periods. Marbling, fat color, and tenderness, as measured by Warner-Bratzler shear force, were not improved by feeding cows for 56 days compared to 28 days. However, lean color, dressing percent, and ribeye area were improved by feeding for 56 days. Numerical yield grade was lower (P<.05) in 28-day fed cows. Implanting with Synovex-H or Finaplix-H resulted in leaner carcasses with lower yield grades compared to controls. Ribeye area was increased by using Synovex-H compared to controls and Finaplix- H. These data indicate that the benefits in gain, feed efficiency, and carcass traits from implanting cull cows can be obtained by using either Synovex-H or Finaplix-H alone.

Go to article

Evaluation Of 20 Corn Hybrids For Silage Agronomic Characteristics (1992), R.N. Sonon, B.S. Dalke, R. Suazo, L. Pfaff, K.K. Bolsen Jan 1992

Evaluation Of 20 Corn Hybrids For Silage Agronomic Characteristics (1992), R.N. Sonon, B.S. Dalke, R. Suazo, L. Pfaff, K.K. Bolsen

Kansas Agricultural Experiment Station Research Reports

Twenty corn hybrids were grown under irrigation and harvested at 90 % of the kernel milk line. Hybrid had a significant effect on plant height, whole-plant dry matter (DM) and DM yield, grain yield, stover yield, and plant part proportions. The highest whole-plant DM (45.9%) was for Cargill 7997, whereas the lowest was for Cargill 4327 (30.1%). Cargill 8427 and Pioneer 3245 had the highest wholeplant DM and grain yields, whereas Cargill 4327 was lowest. Grain yield and the percentage of grain in the whole-plant DM increased as the plant height increased.

Go to article

1992 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 1992

1992 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service

Kansas Agricultural Experiment Station Research Reports

No abstract provided.

Go to article

Effects Of Source And Level Of Energy Or Protein Supplementation On Nitrate Toxicity In Cattle (1992), M.W. Smith, M.R. Blanding, L.R. Corah, Dale A. Blasi Jan 1992

Effects Of Source And Level Of Energy Or Protein Supplementation On Nitrate Toxicity In Cattle (1992), M.W. Smith, M.R. Blanding, L.R. Corah, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to investigate whether level or source of energy and protein supplementation would reduce the incidence or severity of clinical toxicity in cattle fed forages high in nitrate (NO3). Heavily fertilized sudan hay with 40,000 to 50,000 ppm NO3 was fed in both experiments. The percentage of total blood hemoglobin converted to methemoglobin by nitrate was used to compare treatment effectiveness. Energy supplementation at levels tested in Exp. 1 had no effect on methemoglobin concentration. In Exp. 2, all protein sources (wheat midds, urea, soybean meal) reduced the maximum methemoglobin levels and increased the rate of reconversion …

Go to article

Comparison Of Feeding Calves Vs. Yearlings (1992), D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman Jan 1992

Comparison Of Feeding Calves Vs. Yearlings (1992), D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Data from the 207 crossbred steers used in this study indicate that when calves are placed in the feedlot on a finishing ration at weaning, they will have better feed efficiencies, greater lifetime ADGs, lighter carcass weights, and equal carcass qualities compared to those placed as yearlings. In recent times, heavy carcass weights have been rather common in the industry. Every over-weight steer had a desirable weight at one time, and this study shows that they would have produced a desirable carcass if managed correctly.

Go to article

Effect Of Castration Method On Stocker Health And Gain (1992), F.K. Brazle Jan 1992

Effect Of Castration Method On Stocker Health And Gain (1992), F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Two field trials were conducted to compare two different band-castration techniques with surgical castration of calves and yearlings. In Trial I, the bull calves were surgically castrated or banded with Elastrator® rubber rings and compared with calves purchased as steers. Purchased steers gained faster (P<.05) during the 33-day receiving trial than bulls castrated by either method, but no difference was observed in percentage of sick calves. In Trial II, yearling bulls were surgically castrated or banded with the EZE® Bloodless Castrator device. Yearlings purchased as steers gained faster (P<.05) than EZE-castrated bulls during the 110-day trial. Bulls castrated by either method required more medications (P<.07) than steers. In both trials, there was no advantage to banding compared with surgical castration of bulls in terms of gain or health.

Go to article

Heritabilities And Genetic Correlations Of Ultrasound-Measured Ribeye Area With Other Performance Traits In Brangus Cattle (1992), M.Z. Johnson, R.R. Schalles, W. Olson, Michael E. Dikeman Jan 1992

Heritabilities And Genetic Correlations Of Ultrasound-Measured Ribeye Area With Other Performance Traits In Brangus Cattle (1992), M.Z. Johnson, R.R. Schalles, W. Olson, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Heritabilities and genetic correlations for ultrasound-measured ribeye area and fat thickness, as well as growth traits and scrotal circumference, were determined using performance records of 1613 Brangus calves born from 1987 to 1990. Moderate heritabilities of .39 for weaning and .40 for yearling ultrasound- measured ribeye area indicate that selection to change these traits should be effective. The positive, and generally large, genetic correlations between ultrasound-measured ribeye areas and growth traits indicate that genetic change of these traits can be made in tandem. The low heritability (.14) of fat thickness, the small amount of fat, and the lack of variation …

Go to article

Influence Of Level Of Supplemental Alfalfa Hay On The Performance Of Beef Cows Grazing Winter Bluestem Range (1992), E.S. Vanzant, R.C. Cochran Jan 1992

Influence Of Level Of Supplemental Alfalfa Hay On The Performance Of Beef Cows Grazing Winter Bluestem Range (1992), E.S. Vanzant, R.C. Cochran

Kansas Agricultural Experiment Station Research Reports

One hundred thirteen pregnant Hereford x Angus cows were used to study the effect of increasing levels of supplemental alfalfa hay on performance when grazing winter bluestem range. Although no differences were observed in reproductive performance, increasing the amount supplemental alfalfa from approximately .5% up to 1.0% of body weight resulted in increased weight gain and reduced condition loss in cows and increased weaning weight in calves. However, time spent grazing was significantly decreased in those groups receiving larger amounts of supplemental alfalfa.

Go to article

Short-Run Impact Of Captive Supplies On Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder Jan 1992

Short-Run Impact Of Captive Supplies On Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Factors affecting western Kansas fed cattle prices during May through November 1990 were investigated. In particular, the impact of changes in captive cattle supplies on cash prices was examined. The term captive cattle supplies refers to cattle procured by a packer well in advance of slaughter. Captive supplies take one of three forms: 1) packer-owned cattle, 2) cattle procured on forward contracts, and 3) cattle procured under formula price (or marketing) agreements. Captive supplies were defined as cattle procured under forward contracts or formula price agreements, because data on packer-owned cattle were unavailable. Over the May through November 1990 period …

Go to article

Influence Of Fat And Monensin Levels On Performance Of Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope Jan 1992

Influence Of Fat And Monensin Levels On Performance Of Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

To evaluate effects and potential interaction of supplemental fat (0 to 4% tallow) and monensin (0, 20, 40 g/ton) in a corn-based finishing diet, 96 Continental crossbred steers (860 lb) were used in a 2x3 factorially arranged randomized complete block design. Consumption by steers fed the 0% fat diet decreased linearly (P<.0001) with increased monensin level, whereas consumption by steers fed 4% fat diets decreased curvilinearly (P<.08), indicating that monensin depressed intake much less when the diet contained fat. Daily gain decreased linearly (P<.02) with increased monensin level for steers fed no supplemental fat, but remained constant in steers fed 4% fat. Feed efficiency was improved (P<.025) by 4% fat across levels of monensin. This study provides further evidence of interactions between monensin and supplemental fat in effects on animal performance.

Go to article

Effect Of Deworming With Ivomec® On Reproductive Performance Of Yearling Beef Heifers (1992), Robert L. Larson, L.R. Corah, M.F. Spire, R.C. Cochran Jan 1992

Effect Of Deworming With Ivomec® On Reproductive Performance Of Yearling Beef Heifers (1992), Robert L. Larson, L.R. Corah, M.F. Spire, R.C. Cochran

Kansas Agricultural Experiment Station Research Reports

To determine the effect of deworming fallborn yearling heifers on reproductive parameters, 78 heifers were allotted to a either Ivomec® or control treatments. The heifers were dewormed in June and October when they were approximately 7 and 11 months old, respectively. Ivomec effectively lowered fecal egg counts from treated heifers compared to controls. In these heifers that were maintained on a marginal plane of nutrition, deworming not only improved weight gains but also hastened onset of puberty and improved conception rate during a 60-day breeding season. The positive effect of Ivomec on these reproductive characteristics could not be explained by …

Go to article

Effect Of Physical Form And Level Of Alfalfa In Corn-Based Diets For Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope Jan 1992

Effect Of Physical Form And Level Of Alfalfa In Corn-Based Diets For Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

One hundred-eighty British crossbred steers (760 lb) were used in a 3x2 factorially arranged experiment to evaluate the main effects of alfalfa form (chopped hay, dehydrated pellets, or a 50:50 mixture of hay:dehy) and level (5 or 10% of diet DM) on finishing steer performance. Alfalfa (third-cutting, 23.9% CP) was harvested in alternate rows from a common field. No interactions between alfalfa form and level were detected. Steers fed chopped hay or the 50:50 mixture gained faster (P<.05), consumed more feed (P<.05), and had heavier final and carcass weights (P<.05) than steers fed dehy pellets. Steers fed 10% alfalfa gained faster (P<.05), consumed more feed (P<.0003), and had heavier carcass weights (P<.02) vs those fed 5% alfalfa. Feed efficiency was unaffected by alfalfa form or level. Lower feed intakes and numerically higher incidences of liver abscesses indicated less ruminal tactile stimulation and more subacute acidosis for dehy pellets vs hay or the 50:50 mixture and for 5 vs 10% alfalfa, respectively. Positive associative responses of 5.1% (P = .07) on daily gain and 2.9% (P = .11) on dry matter intake suggested that the 50:50 mixture provided enough long particles for adequate rumen function at the alfalfa levels studied. Our results suggests more dehy pellets than chopped hay must be fed to provide similar roughage value.

Go to article

Influence Of Limited Creep Feeding On Pre- And Post-Weaning Performance Of Spring Born Calves (1992), F.K. Brazle, Gerry L. Kuhl, C.E. Binns, K.O. Zoellner, L.R. Corah, R.R. Schalles Jan 1992

Influence Of Limited Creep Feeding On Pre- And Post-Weaning Performance Of Spring Born Calves (1992), F.K. Brazle, Gerry L. Kuhl, C.E. Binns, K.O. Zoellner, L.R. Corah, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Spring-born suckling beef calves were offered salt-limited creep feeds containing either high protein, high energy, or energy plus Bovatec® from August 15 to October 15 in a 3- year study. Creep feeding improved (P<.01) daily gain over controls, but no differences were attributable to creep composition. Daily creep feed consumption was somewhat less for the protein fed group, resulting in improved feed conversion compared to the energy-based supplement, with the energy plus Bovatec creep feed intermediate in efficiency. Creep feeding improved 53-day postweaning gains (P<.01). Overall, limited creep feeding boosted both pre- and postweaning performance, with no difference in gain among the three types of creep rations studied.

Go to article

Effect Of Long-Acting Penicillin And Levamisole® On Gain And Health Of Stressed Calves (1992), F.K. Brazle Jan 1992

Effect Of Long-Acting Penicillin And Levamisole® On Gain And Health Of Stressed Calves (1992), F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to determine the effect of long-acting penicillin and/or levamisole injected at arrival or levamisole injected on day 1 and/or day 7 on the health and gain of newly received, highly stressed, light weight calves. Levamisole injected at arrival reduced (P<.05) sickness of newly arrived calves during the first 5 days. However, it did not reduce overall sickness during the receiving period. Long-acting penicillin injected at arrival did not reduce sickness, but did improve (P<.05) gain of calves during the growing period. The combination of levamisole and long-acting penicillin or the combination of levamisole on day 1 and day 7 did not reduce morbidity in these highly stressed calves.

Go to article

Next Last