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- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Disease; Diagnosis; Diarrhea; Pneumonia (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; G-F; Lysine; Repartitioning; Hormone (2)
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- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; G-F; Performance; Fat; Source; Carcass (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; GF; Process; Soybeans; Trypsin inhibitors; Lysine (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; GF; Repartition; Performance; Carcass; Lysine (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; GF; Repartition; Performance; Lysine (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Lysine; Probiotic; Starter; Digestibility; Performance; Fecal microbes (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Performance; Fat; Lysine; G-F (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Performance; GF; Ileal; Digestibility; Sorghum; Millet; Corn (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Repartition; GF; Performance; Carcass; Heavy weight (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Repartition; Performance; Gilts; Phosphorus; Bone (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Starter; Dried skim milk; Wheat; Gluten; Process; Digestion; Performance (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Starter; Essential fatty acid; Immunity; Salmonella choleraesuis (2)
- 1991; Kansas Agricultural Experiment Station contribution; no. 92-193-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 641; Swine; Starter; Performance; SBM; Process; Soybean (2)
- 1991 (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Ammoniation; Wheat straw; Cows; Supplementation (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Beef cows; Protein supplement; Dehydrated alfalfa pellets; Winter range (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Beef products; Microbes; Safety (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Bulls; Ultrasound; Ribeye Area; Fat thickness (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Cattle; Breeds; Management; Performance; Carcass; Returns (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Cattle; Postpartum; Ovarian follicles; Ultrasonography (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Corn analysis; Near infrared spectroscopy (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Corn; Hybrid; Maturity; Silage (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Epiphytic microflora; Alfalfa; Corn; Additive; Silage (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Feed intake; Ruminal capacity; Gestation (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Feeding performance; Seasonality; Heifers (1)
- 1991; Kansas Agricultural Experiment Station contribution; no. 91-355-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 623; Beef; Feeding performance; Seasonality; Steers (1)
Articles 31 - 60 of 105
Full-Text Articles in Life Sciences
The Influence Of Added Lysine During Lactation On Sow And Litter Performance (1991), J L. Laurin, R D. Richard, D R. Keesecker, Robert D. Goodband, Jim L. Nelssen
The Influence Of Added Lysine During Lactation On Sow And Litter Performance (1991), J L. Laurin, R D. Richard, D R. Keesecker, Robert D. Goodband, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
An on-farm field study utilizing 287 crossbred sows was conducted to investigate the influence of additional dietary lysine during lactation on sow and litter performance. At farrowing, sows were randomly assigned to one of two milo-soybean meal diets containing either .65% (13.5 % CP) or .85% lysine (16.3% CP). Average sow parity was 3.75, and sows on both treatments had a similar number of pigs born alive and similar pig and litter birth weights. All litters were equalized to approximately 9.5 pigs within 24 hours following farrowing, and average lactation length was 21 d. No treatment x parity interactions were …
Effects Of Daily Porcine Somatotropin Administration On The Lysine Requirement Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, K G. Friesen, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Donald H. Kropf, Joe D. Hancock
Effects Of Daily Porcine Somatotropin Administration On The Lysine Requirement Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, K G. Friesen, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Donald H. Kropf, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
One-hundred twenty crossbred barrows initially weighing 68.7 lb were used to determine the lysine requirement of growing pigs injected with 5 mg/d porcine somatotropin (PST) during a 5-wk growth trial. Pigs received one of six levels of dietary lysine (.7, 1.1, 1.5, 1.9,2.3, or 2.7%) and were injected daily with either 5 mg pST or placebo. During the 5 wk trial, pST-injected pigs had increased average daily gain (ADG), decreased average daily feed intake (ADFI), and improved feed conversion (F/G) compared with placebo-injected pigs. With increasing dietary lysine, ADFI of pigs injected with both pST and placebo was reduced. Pigs …
One-Day Supplementation With Tyrosine Did Not Affect Reproductive Traits Of Sows (1991), I Rettmer, Jeffrey S. Stevenson, Robert D. Goodband, Duane L. Davis
One-Day Supplementation With Tyrosine Did Not Affect Reproductive Traits Of Sows (1991), I Rettmer, Jeffrey S. Stevenson, Robert D. Goodband, Duane L. Davis
Kansas Agricultural Experiment Station Research Reports
Primiparous and multiparous sows received a single dietary supplement of L-tyrosine in their feed on the day after weaning, and the effects on various reproductive traits were evaluated. Sows received either none (control; n = 21) or 45.5 mg L-tyrosine/lb BW (tyrosine; n = 22) on the day after weaning. In Exp. 1, days from weaning to estrus (5.1 ± 1 vs 5.3 ± .9 d) and ovulation rate (number of corpora lutea on ovaries on d 5 after estrus) (16.3 ± 4.4 vs 16.2 ± 4) were similar in control and tyrosine-supplemented sows. In Exp. 2, (control; n = …
Space Requirements Of Finishing Pigs Fed To A Heavier Weight (Removed Individually) (1991), G E. Fitzner, David A. Nichols, Joe D. Hancock, Robert H. Hines
Space Requirements Of Finishing Pigs Fed To A Heavier Weight (Removed Individually) (1991), G E. Fitzner, David A. Nichols, Joe D. Hancock, Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
Space allowances of 6, 8, 10, and 12 ft2 were evaluated for pigs fed from 120 to 250 lb. The management system used was to remove pigs individually as they reached 250 lb, which provided increasing space per pig. Using this management system, average daily gain, average daily feed intake, and feed effeciency improved linearly with increasing space allowance. Pigs allowed 6ft2 gained slower, ate less, and required more feed per lb of gain compared to pigs allowed 8, 10, and 12 ft2. Pigs permitted 8, 10, and 12 ft2 were similar in rate of gain, feed consumption, and feed …
Extrusion Of Sorghum, Soybean Meal, And Whole Soybeans Improves Growth Performance And Nutrient Digestibility In Finishing Pigs (1991), Terry L. Gugle, Robert H. Hines, Joe D. Hancock
Extrusion Of Sorghum, Soybean Meal, And Whole Soybeans Improves Growth Performance And Nutrient Digestibility In Finishing Pigs (1991), Terry L. Gugle, Robert H. Hines, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
One hundred forty-four finishing pigs (124 lb avg initial wt) were used to determine the effects of extruding sorghum, soybean meal (SBM), and whole soybeans on growth performance and nutrient digestibility. Treatments were: 1) control diet with ground sorghum, SBM, and soybean oil; 2) diet 1 with the ground sorghum, SBM, and soybean oil blended and extruded; 3) sorghum and whole soybeans extruded separately and blended; and 4) sorghum and extruded soybeans blended and extruded together. Extrusion was in an Insta-Pro® extruder. All diets were formulated to be equal in concentrations of metabolizable energy (ME) and lysine. Pigs fed diets …
Health Considerations For The Year 2000 (1991), J F. Connor
Health Considerations For The Year 2000 (1991), J F. Connor
Kansas Agricultural Experiment Station Research Reports
As the swine industry matures, profit margins will decrease. Control of the major factors affecting feed cost will drive the system. Upgrading or maintaining health will be a major emphasis, because disease agents and complexes affect growing-finishing performance. Many diseases, such as pneumonia caused by Actinobacillus (llaemophilus) pleuropneumonia and swine dysentery, dramatically affect growing-finishing performance. Diseases decrease average daily feed intake (ADFI) and increase feed per gain ratio (FIG) in many instances. At the same time, they increase input costs via treatments, vaccines, and feed additives. Historically, our control methods may have been successful on individual farms, but not across …
Comparison Of Conventional And Low-Inhibitor Soybeans With Different Heat Treatments And Lysine Concentrations In Diets For Finishing Pigs (1991), M A. Giesemann, B J. Healy, A J. Lewis, Joe D. Hancock
Comparison Of Conventional And Low-Inhibitor Soybeans With Different Heat Treatments And Lysine Concentrations In Diets For Finishing Pigs (1991), M A. Giesemann, B J. Healy, A J. Lewis, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
Two experiments were conducted to determine the effects of gene expression for the Kunitz trypsin inhibitor, heat treatment, and concentration of lysine in the diet on nutritional value of soybeans for finishing pigs. In Experiment 1, 108 pigs (113 lb avg initial wt) were fed diets with two soybean cultivars (Williams 82 and Amsoy 71), with (+K) and without (-K) gene expression for the Kunitz trypsin inhibitor, subjected to three heat treatments (1/2-, 3/4-, and full-roasting). Nutritional value of the Williams 82 and Amsoy 71 cultivars was not different, but -K soybeans were superior to +K soybeans at all levels …
Selection For Increased In Vitro Digestibility Improves Feeding Value Of Sorghum Grain (1991), B J. Healy, P J. Bramel-Cox, B T. Richert, C F. Klopfenstein, Merle D. Witt, Joe D. Hancock
Selection For Increased In Vitro Digestibility Improves Feeding Value Of Sorghum Grain (1991), B J. Healy, P J. Bramel-Cox, B T. Richert, C F. Klopfenstein, Merle D. Witt, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
Six cannulated barrows and two hundred eighty-eight chicks were used in an experiment to determine the value of an in vitro protein digestibility assay (pepsin digest) for identification of sorghum parent Iines with improved nutritional value. The barrows were used to determine digestibility of the experimental sorghums at the terminal ileum and for the total digestive tract. Due to a limited supply of the sorghums, broiler chicks were used as a model to predict the value of the experimental sorghums for growth performance. Four sorghum parent lines were selected from 100 SI families grown at several locations in Kansas. Two …
Effect Of Replacing Milk Proteins With Wheat Gluten And Soybean Products On Digestibility Of Nutrients And Growth Performance In Nursery Pigs (1991), B T. Richert, J L. Morrill, Joe D. Hancock
Effect Of Replacing Milk Proteins With Wheat Gluten And Soybean Products On Digestibility Of Nutrients And Growth Performance In Nursery Pigs (1991), B T. Richert, J L. Morrill, Joe D. Hancock
Kansas Agricultural Experiment Station Research Reports
Two experiments were conducted to evaluate the nutritional value of processed wheat gluten for early-weaned pigs. The first experiment involved 72 weanling pigs with an avg age of 20 d and avg wt of 9.2 lb. Six diets were fed to the pigs in individual metabolism cages. Protein sources were casein, flash-dried wheat gluten, spray-dried wheat gluten, two solubilized wheat glutens, and soybean meal. Response criteria were N digestibility, biological value, and N retention. Casein had greater N digestibility, biological value, and N retention than the other protein sources. The wheat gluten products had greater N digestibility than soybean meal. …
Effects Of Pelleting Low-Lysine Diets With Fermentation Products For Weanling Pigs (1991), Joe D. Hancock, Daniel Y.C. Fung, R A. Hart, M T. Manninen
Effects Of Pelleting Low-Lysine Diets With Fermentation Products For Weanling Pigs (1991), Joe D. Hancock, Daniel Y.C. Fung, R A. Hart, M T. Manninen
Kansas Agricultural Experiment Station Research Reports
One hundred twenty pigs (13.2 lb avg initial wt) were used in an experiment to determine the effects of pelleting on the ability of fermentation products to improve growth performance of nursery-age pigs fed low-lysine diets. Treatments were: 1) positive control (1.15 and .95% lysine for d 0 to 14 and 14 to 35, respectively); 2) diet 1 pelleted; 3) low-lysine regimen (1.05 and .85% lysine for d 0 to 14 and 14 to 35, respectively) supplemented with fermentation product (FP)l; 4) diet 3 pelleted; 5) low-lysine regimen supplemented with modified fermentation product (MFP)2; and 6) diet 5 pelleted. For …
Evaluation Of Expelled Soybean Meal In Starter Diets (1991), C G. Mills, K G. Friesen, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen
Evaluation Of Expelled Soybean Meal In Starter Diets (1991), C G. Mills, K G. Friesen, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
Forty-eight weanling pigs (6.9 lb initial wt) were used in a 28-d growth study to determine the feeding value of expelled soybean meal (43% CP) as compared to conventionally extracted soybean meal (48.5% CP). Pigs were fed one of two dietary treatments containing either expelled soybean meal or conventional soybean meal. Both diets contained milo and 10% dried whey and were formulated to be slightly lysine deficient (.95%) to determine any potential differences in amino acid availabilities between the two soybean meals. From d 0 to 14, pigs fed conventional soybean meal had higher average daily gain (ADG) and average …
Effects Of A Grind & Mix High Nutrient Density Diet On Starter Pig Performance (1991), L J. Kats, K G. Friesen, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband
Effects Of A Grind & Mix High Nutrient Density Diet On Starter Pig Performance (1991), L J. Kats, K G. Friesen, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
Two 4-wk growth trials utilizing 520, 21-d old weanling pigs (22 ± 2 d and 13.7 lb) were conducted to evaluate either grind & mix (meal form) or pelleted high nutrient density diets on growth performance. One half of the pigs were fed a standard (20% dried whey and 10% plasma protein) high nutrient density diet (HNDD1) either in a pelleted or meal form. The other half received a high nutrient density diet (HNDD2; either pelleted or meal form) formulated with ingredients having greater flowability characteristics in order to determine if pelleting is necessary for pigs fed high nutrient density …
Southwest Research-Extension Center, Field Day 1991
Southwest Research-Extension Center, Field Day 1991
Kansas Agricultural Experiment Station Research Reports
Report of agricultural research from Southwest Research-Extension Center of Kansas State University.
1991 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
1991 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.
Southwest Research-Extension Center Field Day 1991
Southwest Research-Extension Center Field Day 1991
Kansas Agricultural Experiment Station Research Reports
Each Field Day report consists of individual research reports on topics specific to the region, including cultural methods for most of the major crops grown in Kansas, mitigating the effects of weeds, insects, and disease associated with those crops, and irrigation. Research is conducted and reports written by staff of the K-State Research and Extension Southwest Research Extension Center.
Administration Of Gnrh At Insemination In Repeat Breeding Dairy Cows: Improved Pregnancy Rates, Hormone Secretion, And Luteal Function (1991), Jeffrey S. Stevenson, M. O. Mee, Edward P. Call
Administration Of Gnrh At Insemination In Repeat Breeding Dairy Cows: Improved Pregnancy Rates, Hormone Secretion, And Luteal Function (1991), Jeffrey S. Stevenson, M. O. Mee, Edward P. Call
Kansas Agricultural Experiment Station Research Reports
Administering saline to 14 repeat breeders or 100 μg GnRH to 38 repeat breeders resulted in a greater (P=.07) proportion of pregnancies at 42 to 56 days after third service and fewer (P<.05) lost pregnancies during the 25- to 38-day period of placentation. Concentrations of LH in serum of six repeat breeders previously given 100 μg GnRH 12 hr after detected estrus (day 0) were reduced (P<.05) on days 1, 3, and 8 after estrus compared to those in six cows previously given saline at estrus. Concentrations of FSH were similar among treatment groups on days 1 and 3, but were elevated (P<.05) on day 8 in GnRHtreated cows. Furthermore, all six GnRH-treated cows had detectable FSH pulses on day 8 compared to two of six control cows. Concentrations of progesterone in serum were elevated (P<.05) on days 8 to 10 after estrus in GnRH-treated cows, and their corpora lutea obtained on day 10 after estrus and treatment contained a greater (P<.05) proportion (31 vs. 14%) of large-diameter (21 to 37 μm) luteal cells and a lesser (P<.05) proportion (69 vs. 86%) of small-diameter (10 to 17 μm) luteal cells than corpora lutea from control cows. In vitro production of progesterone in response to LH was reduced (P<.05) in luteal tissue obtained on day 10 after estrus from cows previously treated with GnRH at estrus compared to cows given only saline. It appears that pregnancy rates are improved in repeat breeders given GnRH at the time of insemination as a result of increased secretion of progesterone related to alterations in the morphology and function of the corpus luteum, as well as possible influences of FSH secretion from the pituitary gland.; Dairy Day, 1991, Kansas State University, Manhattan, KS, 1991;
Effects Of Aspergillus Oryzae Extract (Amaferm) On Ruminal Fibrolytic Bacteria And In Vitro Fiber Degradation (1991), A. A. Beharka, Tiruvoor G. Nagaraja
Effects Of Aspergillus Oryzae Extract (Amaferm) On Ruminal Fibrolytic Bacteria And In Vitro Fiber Degradation (1991), A. A. Beharka, Tiruvoor G. Nagaraja
Kansas Agricultural Experiment Station Research Reports
The effect of Amaferm on growth of pure cultures of ruminal cellulose-digesting, hemicellulose- digesting and pectin-digesting bacteria was determined. The addition of Amaferm to the growth medium increased the growth of Ruminococcus albus and Fibrobacter succinogenes. Amaferm had no effect on the growth of the other bacteria. Additionally, selective antimicrobial compounds were used to assess the influence of Amaferm on microbial contributions to in vitro fiber degradation. Amaferm appeared to stimulate fiber digestibility of only certain feedstuffs, and this increase in digestibility was attributed to its stimulation of bacterial activity. Amaferm did not appear to stimulate fungal activity.; Dairy Day, …
Heifer Feeding And Management Affect Efficiency (1991), James R. Dunham
Heifer Feeding And Management Affect Efficiency (1991), James R. Dunham
Kansas Agricultural Experiment Station Research Reports
Heifer feeding and management programs have a great impact on the efficiency of the future dairy herd. Dairies that feed and manage heifers for calving at about 24 mo of age are optimizing milk production, feed cost for raising heifers, number of replacement heifers available, and return on investment. Replacement heifers represent a considerable investment in labor and feed, with no return on that investment until they freshen. A summary of Kansas DHIA Holstein herds shows that some herds are receiving a good return on investment as early as 22 mo of age, whereas other herds are not reaping any …
Performance Of Holstein Calves From Three To Twelve Months Of Age (1991), J. Velazco, J. L. Morrill, Robert T. Brandt Jr., R. Schalles
Performance Of Holstein Calves From Three To Twelve Months Of Age (1991), J. Velazco, J. L. Morrill, Robert T. Brandt Jr., R. Schalles
Kansas Agricultural Experiment Station Research Reports
Sixty-four Holstein steers were used to study the effect of season and age on performance. Animals beginning the trial in spring were heavier (P.05) among seasons in average daily gain and feed conversion after 6 mo of age. Rate of growth was reduced after 9 mo of age for all seasons.; Dairy Day, 1991, Kansas State University, Manhattan, KS, 1991;
Leukocyte Function And Health Status Of Calves Supplemented With Vitamins A And E (1991), S. D. Eicher-Pruiett, J. L. Morrill, Frank Blecha, C. G. Chitko-Mckown
Leukocyte Function And Health Status Of Calves Supplemented With Vitamins A And E (1991), S. D. Eicher-Pruiett, J. L. Morrill, Frank Blecha, C. G. Chitko-Mckown
Kansas Agricultural Experiment Station Research Reports
Forty-four Holstein calves were fed milk replacers with varied concentrations of vitamins A and E from 3 to 45 d of age to determine their effects on concentrations of plasma vitamin A (retinol and retinyl palmitate) and vitamin E (a- tocopherol), lymphocyte and neutrophil functions, and health of calves. Plasma a-tocopherol was unaffected by increased vitamin A supplementation. Fecal scores, and eye and nose membrane responses were improved with increased vitamin A and lower vitamin E concentration, whereas the same treatment tended to reduce neutrophil cytotoxic and bactericidal activity by 6 wk of age. Increased supplemental vitamin E tended to …
Performance Of Holstein Heifers Reared On 100 Or 115% Of Nrc Requirements From 3 To 12 Months Of Age And Then Switched To The Opposite Treatment (1991), E. J. Bortone, M. G. Daccarett, J. L. Morrill, Jeffrey S. Stevenson
Performance Of Holstein Heifers Reared On 100 Or 115% Of Nrc Requirements From 3 To 12 Months Of Age And Then Switched To The Opposite Treatment (1991), E. J. Bortone, M. G. Daccarett, J. L. Morrill, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
Holstein heifers from the Kansas State University Dairy Teaching and Research Unit were used from 3 mo of age until 21 d before estimated date of calving. They were fed either 100 (control, C) or 115% (enhanced, E) of the 1989 National Research Council (NRC) requirements for major nutrients from 3 to 12 mo of age, then, until 21 d before freshening, the treatments were switched from 100 to 115% NRC (CE) or from 115 to 100% NRC (EC). At puberty, heifers had similar body weights (613, E vs 617, C) but heifers fed E were 1 month younger (11 …
Severe Flea Infestation In Dairy Calves (1991), Michael W. Dryden, A. B. Broce
Severe Flea Infestation In Dairy Calves (1991), Michael W. Dryden, A. B. Broce
Kansas Agricultural Experiment Station Research Reports
In June 1991, an investigation was conducted of a severe flea infestation in 23 Holstein dairy calves in South Central Kansas. Inspection of the dairy revealed massive numbers of fleas on calves and in the barn where they were housed. Analysis of blood samples from 10 calves revealed that nine of them had mild to severe anemia. A management program was initiated consisting of treatments of calves and premises with insecticide and insect growth regulator and removal of straw bedding from the barn. Inspection of the dairy 9 wk after this complete control program was initiated revealed that fleas were …
Release Of Parasitic Wasps To Control Stable Flies In Kansas Dairies (1991), G. L. Greene
Release Of Parasitic Wasps To Control Stable Flies In Kansas Dairies (1991), G. L. Greene
Kansas Agricultural Experiment Station Research Reports
After release of fly parasites in Kansas dairies during 1991, parasitism increased from May to late June then dropped in July. The parasite released was Spalangea nigroaenea of Kansas origin to assure its adaption to Kansas conditions. Additional studies of fly parasite releases are needed to develop a reliable fly reduction program for Kansas dairies before fly parasite purchases can be reliably recommended. Release of adapted parasite species and removal of fly breeding areas will be essential for reduction of fly numbers at Kansas dairies.; Dairy Day, 1991, Kansas State University, Manhattan, KS, 1991;
Pregnancy Rates Of Holstein Cows After Postinsemination Treatment With Progesterone (1991), Jeffrey S. Stevenson, M. O. Mee
Pregnancy Rates Of Holstein Cows After Postinsemination Treatment With Progesterone (1991), Jeffrey S. Stevenson, M. O. Mee
Kansas Agricultural Experiment Station Research Reports
The objective of this experiment was to determine if pregnancy rates following first services would be improved by supplementing lactating dairy cows with progesterone during two phases after insemination. Cows were inseminated at estrus (day 0), and progesterone was administered via a progesterone-releasing intravaginal device (PRID) from days 5 to 13 or days 13 to 21 after first service with untreated cows serving as controls. Pregnancy rates at first services were unaffected by the progesterone treatments whether the cows received a PRID from days 5 to 13 (13/36 or 36%), a PRID from days 13 to 21 (18/36 or 50%), …
Validation Of Real-Time Ultrasound Technology For Predicting Fat Thicknesses And Ribeye Areas Of Brangus Bulls From Four Months To Two Years Of Age, D.N. Waldner, R.R. Schalles, W. Olson, P. Houghton, L.R. Corah, Michael E. Dikeman, John A. Unruh
Validation Of Real-Time Ultrasound Technology For Predicting Fat Thicknesses And Ribeye Areas Of Brangus Bulls From Four Months To Two Years Of Age, D.N. Waldner, R.R. Schalles, W. Olson, P. Houghton, L.R. Corah, Michael E. Dikeman, John A. Unruh
Kansas Agricultural Experiment Station Research Reports
Sixty Brangus bulls were evaluated live with two real-time ultrasound instruments to estimate ribeye area (REA) and 12th rib fat thickness (FT) every 4 mo beginning at 4 mo and 12 mo of age, respectively, and continuing until 24 mo of age. At each evaluation period 10 bulls were slaughtered to determine actual REA and FT. Scanned mean FT was accurate (P<.05) at 16 mo and was not different (P=.09) from the actual mean FT. Scanned mean REA was accurate (P<.05) at 12 mo. Absolute differences between scanned and actual mean FT and REA were different (P<.05) from zero for all main effects. Increased level of operator (scanner) skill did not improve accuracy of FT or REA measurements, whereas increased level of interpreter (reader) skill improved accuracy of REA measurements. There was no difference (P>.05) between the two ultrasound units in accuracy of estimating FT or REA. Scanned measurements overestimated bulls with less than .20 in FT and greater than 13.6 in2 REA and underestimated bulls with more than .40 in. FT …
Beef Safety - Current Research And Summary Of Progress, F. Cunningham, Melvin C. Hunt, Curtis L. Kastner, Donald H. Kropf, B. Larson, D. Schafer, D. Simms, S. Smith, M. Vanier, Daniel Y.C. Fung
Beef Safety - Current Research And Summary Of Progress, F. Cunningham, Melvin C. Hunt, Curtis L. Kastner, Donald H. Kropf, B. Larson, D. Schafer, D. Simms, S. Smith, M. Vanier, Daniel Y.C. Fung
Kansas Agricultural Experiment Station Research Reports
Beef and beef products are significant parts of a balanced diet in the U.S. and major parts of the Kansas economy. Therefore, these products must be carefully processed, handled, and monitored for microbial quality to ensure safety for the consumer. KSU Animal Sciences research is designed to accomplish this end and to enhance demand for beef. We have made a major commitment to beef safety research. Moreover, results with beef are generally applicable to other meats.
Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Fish Surimi And Beef Heart Or Skeletal Muscle, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner
Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Fish Surimi And Beef Heart Or Skeletal Muscle, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner
Kansas Agricultural Experiment Station Research Reports
Five percent fish surimi, unwashed or washed ground beef, and washed or unwashed beef hearts were evaluated in precooked, chunked and formed, restructured beef roasts to determine if they would increase bind in low-salt (0.2% NaCl) product. An industry-like product with 1.0% NaCl and 5% unwashed ground beef was prepared, as well as a product with 0.2% NaCl and no binder. Roasts without binder were comparable in texture and integrity to those prepared with binding agents. Washing ground heart improved the sensory traits, texture measured instrumentally, and oxidative stability of the resulting products. Color was more stable for roasts containing …
Follicular Development And Reproductive Hormone Changes During Postpartum Anestrus In Suckled Beef Cows, R.C. Perry, L.R. Corah, W.E. Beal, G.H. Kiracofe, J. Ernest Minton, R.C. Cochran, J.R. Brethour, Jeffrey S. Stevenson
Follicular Development And Reproductive Hormone Changes During Postpartum Anestrus In Suckled Beef Cows, R.C. Perry, L.R. Corah, W.E. Beal, G.H. Kiracofe, J. Ernest Minton, R.C. Cochran, J.R. Brethour, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
Twenty-six, Hereford x Angus, suckled cows were utilized to determine patterns of follicular development and associated changes in reproductive hormones during postpartum anestrus and first estrous cycles. Ultrasonography per rectum was used to monitor follicular size and detect ovulation. Dietary energy and(or) body condition influenced patterns of follicular development during postpartum anestrus. Follicular growth occurred in waves during this period in cows that were in adequate body condition and adequately fed, and follicular development appeared to be related to serum concentrations of luteinizing hormone and estradiol. Two distinct characteristics were associated with follicular development before the first postpartum ovulation. First, …
Food Safety Consortium, M. Vanier
Food Safety Consortium, M. Vanier
Kansas Agricultural Experiment Station Research Reports
In recent years, food safety has become an issue of concern for the beef industry, beef processors, and the consuming public. Even though America has the safest and most wholesome food supply in the world, consumers are worried about the safety of the meat they eat. In response to reports of illness from contamination by both microbes and chemicals in the meat supply, the United States Congress, in 1988, authorized and funded a Special Grants Program in the United States Department of Agriculture called the Food Safety Consortium. The members of the Consortium are Kansas State University, the University of …
Seasonal Performance Of Finishing Heifers, Michael R. Langemeier, J. Mintert, Ted C. Schroeder
Seasonal Performance Of Finishing Heifers, Michael R. Langemeier, J. Mintert, Ted C. Schroeder
Kansas Agricultural Experiment Station Research Reports
This study examined the impact of date of feedlot placement on feed conversion, daily gain, and death loss. Results indicated that heifers placed on feed from September to December required more feed per pound of gain, had lower daily gains and higher death loss, and generally exhibited more variation in feeding performance than heifers placed during the rest of the year. Cattle feeders should take these performance variations into account when developing budgets and calculating breakeven sale prices for heifers.