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

Life Sciences Commons™

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

Kansas State University Libraries

Kansas Agricultural Experiment Station Research Reports

1993

Discipline
Keyword

Articles 91 - 112 of 112

Full-Text Articles in Life Sciences

Pasture And Subsequent Feedlot Performance By Beef Cattle Grazing Acremonium Coenophialum-Infected Tall Fescue And Offered Different Levels Of Ground Grain Sorghum, A.S. Freeman, K.P. Coffey Jan 1993

Pasture And Subsequent Feedlot Performance By Beef Cattle Grazing Acremonium Coenophialum-Infected Tall Fescue And Offered Different Levels Of Ground Grain Sorghum, A.S. Freeman, K.P. Coffey

Kansas Agricultural Experiment Station Research Reports

One hundred twenty-six crossbred steers and sixty-three crossbred heifers (704 lb BW) were used to evaluate the effects of energy supplementation on animal performance during grazing of endophyte-infected tall fescue and on subsequent feedlot performance. Grazing ADG increased linearly (P.10) by SG that had been fed on pasture.

Go to article

Effect On Summer Stocker Gains When Native Grass Pastures Were Either Grazed Short During The Dormant Season Or Burned In April, F.K. Brazle Jan 1993

Effect On Summer Stocker Gains When Native Grass Pastures Were Either Grazed Short During The Dormant Season Or Burned In April, F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Four hundred and ten mixed-breed heifers were intensively early grazed for 81 days on native tall grass pastures where dormant growth had been removed by either winter grazing or April burning. Heifers grazing the burned pastures gained .19 lb/day more (1.99 vs 1.80 lb; P<.05) than those grazing pastures that had the dormant grass removed by heavy grazing during February and March.

Go to article

Effect Of Supplemental Fat And Thermal Stress On Nitrogen And Energy Metabolism Of Finishing Heifers, Robert T. Brandt Jr., J.E. Williams, Timothy J. Jones Jan 1993

Effect Of Supplemental Fat And Thermal Stress On Nitrogen And Energy Metabolism Of Finishing Heifers, Robert T. Brandt Jr., J.E. Williams, Timothy J. Jones

Kansas Agricultural Experiment Station Research Reports

Twelve British and British crossed heifers fed whole shelled corn finishing diets were used in a 2 x 2 factorially arranged experiment to study the main effects of and interactions between feeding supplemental tallow (0 vs 4%) and thermal heat stress (55°F vs 90°F). Heifers were maintained in temperature- and humidity-controlled environmental rooms. Neither supplemental fat or thermal stress affected dry matter intake or total tract digestibility of organic matter, starch, NDF, or ADF. However, heat stress elevated water consumption (P<.01) and rectal temperature (P<.01). When fed at equal intakes, heifers consuming tallow-supplemented diets retained more (P<.05) nitrogen, and tallowsupplemented diets had a higher (P=.08) ME value than non-tallow diets; these effects were not observed when heifers were fed ad libitum. Adding tallow to diets of finishing cattle may help maintain performance under circumstances where feed intake is restricted.

Go to article

How Does Cow-Calf Association Inhibit The Onset Of Estrous Cycles After Calving?, J. Ernest Minton, E.L. Knoppel, R.E. Stewart, S.D. Viker, G.H. Kiracofe, Jeffrey S. Stevenson Jan 1993

How Does Cow-Calf Association Inhibit The Onset Of Estrous Cycles After Calving?, J. Ernest Minton, E.L. Knoppel, R.E. Stewart, S.D. Viker, G.H. Kiracofe, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

The "suckling response" maintains anestrus in beef cows for about 40 to 60 days postpartum. The suckling response remains intact in mastectomized cows, so stimulation of the inguinal area, and not milk flow or teat stimulation, must be part of the response. Cow-calf recognition is part of the suckling response because suckling by cross-fostered calves after nose-to-nose contact followed by suckling of an alien calf does not prevent cycling. We believe the suckling response involves a cow recognizing her own calf, followed by the calf stimulating her inguinal area. It may be possible to initiate estrus by simply blocking the …

Go to article

Antimicrobial Resistance Among Important Bovine Pathogens Isolated At The Ksu Veterinary Diagnostic Laboratory Over Two And A Half Years, D.P. Rogers, M.W. Vorhies, M. M. Chengappa Jan 1993

Antimicrobial Resistance Among Important Bovine Pathogens Isolated At The Ksu Veterinary Diagnostic Laboratory Over Two And A Half Years, D.P. Rogers, M.W. Vorhies, M. M. Chengappa

Kansas Agricultural Experiment Station Research Reports

A retrospective study was conducted to determine the prevalence of antimicrobial resistance among six important bacterial pathogens of bovine origin. The study extended from June 1990 through December 1992 and included a review of the microbiology records of bovine submissions to the KSU Veterinary Diagnostic Laboratory. Antimicrobial susceptibility results for Pasteurella haemolytica, Pasteurella multocida, Actinomyces pyogenes, Hemophilus somnus, Escherichia coli, and Salmonella spp. are summarized. Pathogens were recovered primarily from cases of pneumonia and/or diarrhea. Each isolate was tested for susceptibility to 14 different antimicrobial agents. A high prevalence of resistance (>70%) was noticed for respiratory pathogens to sulfachloropyridazine. …

Go to article

1993 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 1993

1993 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

Pellet Quality Affects Growth Performance Of Nursery And Finishing Pigs (1993), C R. Stark, Robert H. Hines, Keith C. Behnke, Joe D. Hancock Jan 1993

Pellet Quality Affects Growth Performance Of Nursery And Finishing Pigs (1993), C R. Stark, Robert H. Hines, Keith C. Behnke, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of diet form (meal vs pellet) and amount of fines in pelleted feed on growth performance of nursery and finishing pigs. One hundred twenty-six weanling pigs, with an average initial body wt of 12.5 lb, were used in the 35-d nursery experiment. The same phase I diet (pelleted) was fed to all pigs for 7 d, then the pigs were switched to phase II diet treatments (d 7 to 35 postweaning). Treatments were the same phase II diet fed as: 1) meal; 2) screened pellets (fines removed); and 3) the screened pellets …

Go to article

Relationship Between Ham Composition And Carcass Composition In Finishing Swine (1993), M E. Johnston, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines, Donald H. Kropf Jan 1993

Relationship Between Ham Composition And Carcass Composition In Finishing Swine (1993), M E. Johnston, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

The relationship between ham and carcass composition of 120 barrows with an average initial weight of 130 lb was used to develop prediction equations to determine carcass composition based on ham composition. Eighty pigs were slaughtered to determine total body and ham composition. The first half were slaughtered at 230 lb and the second half at 280 lb. Longissimus muscle area, backfat thickness, whole ham weight, and trimmed ham weight of each pig were recorded 24 h following slaughter. The right ham and the right side of each carcass were ground and analyzed for protein, lipid, moisture, and ash contents. …

Go to article

Effects Of Cellulase Enzyme And A Bacterial Feed Additive On The Nutritional Value Of Sorghum Grain For Finishing Pigs (1993), I H. Kim, C R. Risley, Robert H. Hines, Joe D. Hancock Jan 1993

Effects Of Cellulase Enzyme And A Bacterial Feed Additive On The Nutritional Value Of Sorghum Grain For Finishing Pigs (1993), I H. Kim, C R. Risley, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred and twenty-eight finishing pigs (113 lb average initial body wt) were used to determine the effects of adding cellulase enzyme and Bacillus bacteria to sorghum-based diets on growth performance, carcass merit, and nutrient digestibility in finishing pigs. Treatments were: 1) corn-soybean meal-based positive control; 2) sorghum-soybean meal-based negative control; 3) Diet 2 with cellulase; and 4) Diet 2 with a bacterial feed additive (i.e., a mixture of Bacillus licheniformis, Bacillus subtilis, and Bacillus pumilus). There was a trend for greater average daily gain in pigs fed corn vs the sorghum treatments from d 0 to 28, but there …

Go to article

Spray-Dried Egg Protein In Diets For Early-Weaned Starter Pigs (1993), K Q. Owen, L J. Kats, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 1993

Spray-Dried Egg Protein In Diets For Early-Weaned Starter Pigs (1993), K Q. Owen, L J. Kats, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 197 weanling pigs (initially 11.7 lb and 18 d of age) was used in a 28 d growth trial to determine the influence of spray-dried egg protein as a protein substitute for either soybean meal or spray-dried porcine plasma on starter pig performance. Pigs were blocked by weight with six replications per treatment and seven to eight pigs per pen. Dietary treatments were based on level of egg protein (3 or 6%) added to a phase I high nutrient dense diet and the method of substitution (egg protein replacing either soybean meal or porcine plasma). A sixth …

Go to article

Do Dietary Buffers Improve Growth Performance Or Nutrient Digestibility Or Decrease Stomach Ulcers In Finishing Pigs? (1993), K J. Wondra, Robert H. Hines, Joe D. Hancock, Keith C. Behnke Jan 1993

Do Dietary Buffers Improve Growth Performance Or Nutrient Digestibility Or Decrease Stomach Ulcers In Finishing Pigs? (1993), K J. Wondra, Robert H. Hines, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

The effects of supplemental buffers in finely ground diets were determined in two experiments. In Exp. 1, 128 pigs (123 lb average initial body wt) were fed a cornsoybean meal-based diet (488 μm mean particle size for corn) for 66 d. Treatments were a control and 1, 2, or 3% added sodium bicarbonate (NaHCO3). Average daily gain, dressing percentage, and plasma urea N concentration decreased as the concentration of NaHCO3 in the diet was increased. However, the reduction in average daily gain occurred only at the 2 and 3% additions. Feed intake, feed/gain, backfat thickness, stomach ulceration score, stomach keratinization …

Go to article

Appropriate Level Of Lactose In A Plasma Protein-Based Diet For The Early-Weaned Pig (1993), K Q. Owen, L J. Kats, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 1993

Appropriate Level Of Lactose In A Plasma Protein-Based Diet For The Early-Weaned Pig (1993), K Q. Owen, L J. Kats, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 367 weanling pigs (initially 11.8 lb and 21 d of age) was used in a 28 d growth assay to determine the appropriate level of lactose needed in phase I diets containing spray-dried porcine plasma (SDPP) for the early-weaned pig. Pigs were blocked by weight and randomly assigned to one of six experimental diets: a positive control or five diets calculated to contain 7, 11, 15, 19, or 23% lactose. The positive control was a high nutrient density diet (HNDD) containing 7.5% SDPP, 1.75% spray-dried blood meal (SDBM), and 20% edible grade dried whey. The five lactose …

Go to article

The Effects Of Increasing Dietary Methionine In The Phase Ii Starter Pig Diet (1993), K Q. Owen, L J. Kats, K G. Friesen, B T. Richert, R Musser, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1993

The Effects Of Increasing Dietary Methionine In The Phase Ii Starter Pig Diet (1993), K Q. Owen, L J. Kats, K G. Friesen, B T. Richert, R Musser, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 216 pigs (initially 12.4 lb and 21 d of age) was used in a 28 d growth trial to determine the effects of increasing dieatary methionine in the phase II ( d 7 to 28 postweaning) diet. Pigs were allotted by sex, weight, and ancestry and placed in pens containing six pigs each. All pigs were offered a common phase I diet for the first 7 d postweaning. The phase I diet contained 20% dried whey, 10% spray-dried porcine plasma (SDPP), 3% lactose, and 1.75% spray-dried blood meal (SDBM) and was formulated to contain 1.6% lysine and …

Go to article

Optimal Dietary Sequence In A Nursery-Phase Feeding Program For Segregated Early-Weaned (9±1 D Of Age) Pigs (1993), K Q. Owen, L J. Kats, B T. Richert, Steven S. Dritz, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband Jan 1993

Optimal Dietary Sequence In A Nursery-Phase Feeding Program For Segregated Early-Weaned (9±1 D Of Age) Pigs (1993), K Q. Owen, L J. Kats, B T. Richert, Steven S. Dritz, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Two hundred forty weanling pigs (initially 7.2 lb BW and 9 + 1 d of age) were used to compare four dietary sequences of three diets in a 21-d growth trial. Diet A was formulated to contain 1.7% lysine and contained 7.5% spray-dried porcine plasma and 1.75% spray-dried blood meal. Diet B was formulated to contain 1.4% lysine and contained 2.5% spray-dried porcine plasma and 2.5% spray-dried blood meal. Diet C was formulated to contain 1.25 % lysine and contained 2.5% spray-dried blood meal. The four dietary sequences were as follows AAB, AAC, ABB, and ABC, with each letter indicating …

Go to article

Influence Of Interleukin-1 On Neutrophil Function And Resistance To Streptococcus Suis In Young Pigs (1993), Jishu N. Shi, M M. Chengappa, D S. Mcvey, Frank Blecha, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1993

Influence Of Interleukin-1 On Neutrophil Function And Resistance To Streptococcus Suis In Young Pigs (1993), Jishu N. Shi, M M. Chengappa, D S. Mcvey, Frank Blecha, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Nonspecific immunity is usually lower in young pigs than adults. Consequently, enhancing the young pig's nonspecific immune capability may be beneficial for the health and performance of early-weaned pigs. Twenty, 9-d-old, crossbred pigs were allotted by litter and weight into two treatment groups: recombinant bovine interleukin- 1β (rBoIL-1β; 5 μg/kg, intramuscularly at 9 and 10 d of age)) or control. Pigs were weaned at 10 d of age and housed in an isolation facility with ad libitum access to water and a pelleted diet formulated to meet the nutrient requirements and provide maximum growth of early-weaned pigs. Blood samples were …

Go to article

Valine: A Limiting Amino Acid For High-Producing Lactating Sows (1993), Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1993

Valine: A Limiting Amino Acid For High-Producing Lactating Sows (1993), Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 152 lactating sows was used to determine the influence of dietary valine level on sow and litter performance. During lactation, sows were fed corn-soybean meal based diets containing .9% lysine and either .75 or .9% valine. Lactation diet had no influence on litter birth weight, pig survivability, pigs weaned per litter, or daily sow feed intake. However, sows fed the .90% valine diet had increased pig and litter weaning weights. These differences were magnified as number of pigs weaned and sow milk production increased. These results indicate that further research is needed to determine the valine requirement …

Go to article

Southwest Research-Extension Center, Field Day 1993 Jan 1993

Southwest Research-Extension Center, Field Day 1993

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Go to article

Southwest Research-Extension Center Field Day 1993 Jan 1993

Southwest Research-Extension Center Field Day 1993

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.

Go to article

Effect Of Processing Of Soybeans On Release Of Free Fatty Acids And Subsequent Effects Upon Fiber Digestibilities (1993), P. V. Reddy, J. L. Morrill, Tiruvoor G. Nagaraja Jan 1993

Effect Of Processing Of Soybeans On Release Of Free Fatty Acids And Subsequent Effects Upon Fiber Digestibilities (1993), P. V. Reddy, J. L. Morrill, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Two in vitro experiments were conducted to determine the rates of lipolysis and biohydrogenation of fat from raw or processed soybeans and to examine subsequent effects upon fiber digestibilities. In experiment 1, substrates containing soy oil; raw soybeans; extruded soybeans; and soybeans roasted at 270,295, or 325 °F were incubated with ruminal contents for 2, 4, 6, 12, or 24 hr, and release of free fatty acids was measured. The fatty acids released from substrates containing soy oil, extruded soybeans, and raw or roasted soybeans reached maximums at 4, 6, and 12 hr incubations, respectively. Fatty acids in roasted soybeans …

Go to article

Feeding The High Producing Cow (1993), D. J. Schingoethe Jan 1993

Feeding The High Producing Cow (1993), D. J. Schingoethe

Kansas Agricultural Experiment Station Research Reports

Dairy cows must consume a lot of feed to achieve the levels of production expected today; however, the nutrient needs of dairy cows vary immensely between the dry period and peak lactation. Requirements for the former often can be met with forages alone, whereas the latter may require a considerable amount of high-energy feeds such as grains and supplemental fat and ruminally undegradable proteins of good quality that are digestible in the gastrointestinal tract. The challenge for a dairy feeding program is to meet the cow's nutrient needs while minimizing body weight loss, not causing digestive upsets, and maintaining health.; …

Go to article

High Quality Alfalfa In Short Supply - Now What? (1993), James R. Dunham Jan 1993

High Quality Alfalfa In Short Supply - Now What? (1993), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

Wetter than normal growing and harvesting conditions have resulted in a short supply of high quality alfalfa. Because forage quality affects milk production in early lactation cows, dairy farmers are encouraged to consider other alternatives to feeding low quality alfalfa to high-producing dairy cows.; Dairy Day, 1993, Kansas State University, Manhattan, KS, 1993;

Go to article

Use Of Milk Progesterone And Pgf2Α In A Scheduled Insemination Program (1993), Jeffrey S. Stevenson, J. R. Pursley Jan 1993

Use Of Milk Progesterone And Pgf2Α In A Scheduled Insemination Program (1993), Jeffrey S. Stevenson, J. R. Pursley

Kansas Agricultural Experiment Station Research Reports

Holstein cows milked twice daily were assigned to be inseminated at their first detected estrus (control) after 42 days in milk or received PGFza (PG) after 42 days, if they had a high milk progesterone (P4) test on any of 3 consecutive Mondays until first inseminated. Milk P4 tests and injections of PG were given on Mondays, and most of the breeding occurred on Thursdays and Fridays. The proportion of cows inseminated within 21 days of the beginning of the breeding period was greater in the milk P4 + PG group (52.8%) than in the control (38.9%). Compared to controls, …

Go to article

First Prev