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Journal

1978

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Articles 31 - 46 of 46

Full-Text Articles in Life Sciences

Protein Supplementation For Cows Wintered On Milo Stubble, M. Mckee, K. Kimole, L.R. Corah Jan 1978

Protein Supplementation For Cows Wintered On Milo Stubble, M. Mckee, K. Kimole, L.R. Corah

Kansas Agricultural Experiment Station Research Reports

Cows in mid-to-late gestation gained significantly (P<.05) more while grazing milo stover supplemented on alternative days with 4 lbs. per head of a natural protein than cows with no protein supplement. Although protein supplementation stimulated extra gain, the cows receiving no protein supplement gained weight and maintained adequate condition for mid-to-late gestation. When quality and quantity of milo stover are satisfactory, satisfactory performance can be achieved by cows in mid-to-late gestation without supplemental protein.

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Weaning Calves Early From Drylot, M. Mckee, G. Fink Jan 1978

Weaning Calves Early From Drylot, M. Mckee, G. Fink

Kansas Agricultural Experiment Station Research Reports

Percentage Simmental and Hereford calves gained slightly more (13 lbs./hd) while nursing their mothers than 83 herd mates that were weaned early at 49 (+27) days of age. Percentage Simmental cows whose calves were weaned early had a higher conception rate than percentage Simmental cows that nursed calves (93% vs. 89%) Dams of calves weaned early rebred 17.6 days sooner than nursing dams.

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Myoclonia Congenita (Trembling Piglets) (1978), H W. Leipold, R Scarsi, D Schoneweis, R Milleret, R Phillips Jan 1978

Myoclonia Congenita (Trembling Piglets) (1978), H W. Leipold, R Scarsi, D Schoneweis, R Milleret, R Phillips

Kansas Agricultural Experiment Station Research Reports

An epidemiologic survey was conducted on ten swine farms in Kansas and two in Nebraska (1878 piglets in 251 litters) to determine the incidence, clinical signs, and cause of myoclonia corrgenita. The percentage of litters with myoclonia congenita was 37.45%, ranging from 4.35% to 100%. Morbidity rate was 37.5%, which is lower than rates in previous surveys in the United States. Mortality rate in all pigs was 17.73% while the fatality rate of affected pigs was 47.2%.; Swine Day, Manhattan, KS, November 9, 1978

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Teat Necrosis In Newborn Gilts (1978), D A. Schoneweis Jan 1978

Teat Necrosis In Newborn Gilts (1978), D A. Schoneweis

Kansas Agricultural Experiment Station Research Reports

Marked enlargement and edema of the vulva are often noted in newborn gilts. An accompanying, but less conspicuous, lesion is enlarged, engorged mammary glands. Although not fully understood, the changes are thought to result from increased estrogen in sows before they farrow. The edema of the vulva usually causes no lasting problems but enlarged mammary glands are more susceptible to injury from a rough surface like concrete slats. Such injuries may lead to teat necrosis and fibrosis, which makes nipples appear inverted and they are often nonfunctional when the gilts farrow. The incidence of teat necrosis can be reduced by …

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Arthrogryposis In Piglets (1978), H W. Leipold, R Ely, D Schoneweis Jan 1978

Arthrogryposis In Piglets (1978), H W. Leipold, R Ely, D Schoneweis

Kansas Agricultural Experiment Station Research Reports

This report documents experimental reproduction of tetramelic arthrogryposis in purebred Yorkshire swine by breeding trials. Data from the trials indigated arthrogryposis may be due to homozygosity of a simple autosomal recessive gene. No affected pig was observed to be alive at parturition, although most had been alive in utero just prior to delivery. Other than dystocia observed in the sows, no other significant clinical findings were noted. The condition was noted in five litters from two sows which were bred to the same boar. Approximately 25% of the pigs exhibited the clinical signs of arthrogryposis which included malformed rigidly extended …

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The Evaluation Of Virginiamycin In Feed As A Treatment For Swine Dysentery In Heavy (More Than 120 Lbs.) Hogs (1978), D A. Schoneweis Jan 1978

The Evaluation Of Virginiamycin In Feed As A Treatment For Swine Dysentery In Heavy (More Than 120 Lbs.) Hogs (1978), D A. Schoneweis

Kansas Agricultural Experiment Station Research Reports

Virginiamycin at 100 grams per ton of feed was effective as a treatment against swine dysentery. The only pig receiving Virginiamycin that died during treatment had concurrent gangrenous pneumonia --probably the major cause of death. The pigs receiving the feed with Virginiamycin were more alert and ate more than the controls--which resulted in more weight gain and improved feed conversion. The Virginiarnycin did not clear up all signs of dysentery as several pigs continued to have diarrhea. Pigs that had been on Virginiamycin began to break with dysentery six days after the antibiotic was withdrawn and a pig weighing 234 …

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Sudangrass, Sorghum-Sudan, Forage Sorghum, And Corn Silages And Three Protein Levels For Growing Yearling Steers, W. Thompson, J. Oltjen, K. Bolsen, H. Ilg, Jack G. Riley Jan 1978

Sudangrass, Sorghum-Sudan, Forage Sorghum, And Corn Silages And Three Protein Levels For Growing Yearling Steers, W. Thompson, J. Oltjen, K. Bolsen, H. Ilg, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Sudangrass, sorghum-sudan, forage sorghum, and corn silages were full-fed to yearling steers for 70-or 91-day growing periods. For both periods, steers fed corn silage outperformed steers fed any other silage. In the 70-day period silages from both sudangrass and sorghum-sudan cut at 45- and 60-inch plant heights, respectively, supported performance similar to forage sorghum silage. For both periods steers fed sorghum-sudan (dough) silage gained slowest and least efficiently. For the 91-day period, rations containing 12.0% crude protein supported better performance than rations containing 10.5 or 9% protein and 10.5% protein rations supported better performance than 9% protein rations.

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The Relationship Between Body Measurements And Performance Traits Of Selected Barrows Carried To Heavy Weights (1978), D H. Carnahan, Robert H. Hines Jan 1978

The Relationship Between Body Measurements And Performance Traits Of Selected Barrows Carried To Heavy Weights (1978), D H. Carnahan, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Forty-seven Yorkshire barrows were selected for large and small scale test groups by using body height and length as a selection index. Initially the index between groups differed; however, the same measurements gave indexes that were nearly equal when the pigs weighed 210 and 300 lbs. Large scale barrows gained faster per day than did small scale barrows from start to 210 lbs; however, there were no differences in feed efficiency or backfat thickness. No differences were observed between scale groups fed to 300 lbs for the traits of average daily gain, feed efficiency, backfat thickness, carcass length, or loin …

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Managing The Breeding Herd (1978), Duane L. Davis Jan 1978

Managing The Breeding Herd (1978), Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Successful swine producers pay careful attention to the breeding herd. The members of our producer panel will present three approaches to managing reproduction. Their ideas are of particular interest since each is a successful manager. This paper will serve as an outline of topics to be discussed. Basically the same problems occur in all common management systems; however, particular problems may be exaggerated under certain conditions. A well-known example is failure of gilts to reach puberty at an acceptable age. While some producers in all types of facilities experience this problem, complaints are considerably more frequent when gilts are bred …

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Effect Of Adding Fat To Diets During Late Gestation And Lactation (1978), G L. Allee, J Salava Jan 1978

Effect Of Adding Fat To Diets During Late Gestation And Lactation (1978), G L. Allee, J Salava

Kansas Agricultural Experiment Station Research Reports

Recent research at the University of Nebraska suggest that feeding sows high level of fat (15-20%) during late gestation and lactation may increase energy stores in the newborn pig and increase their survival. Adding fat to sows diets increases the fat content of the milk and therefore increases its energy content. The present studies were conducted to evaluate the effect of feeding 6% fat to sows and gilts during late gestation and lactation on pig survival and performance from birth to weaning (14 or 21 days).; Swine Day, Manhattan, KS, November 9, 1978

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Pelleting Corn-Soybean Meal Swine Diets (1978), E R. Skoch, S F. Binder, C W. Deyoe, G L. Allee, Keith C. Behnke Jan 1978

Pelleting Corn-Soybean Meal Swine Diets (1978), E R. Skoch, S F. Binder, C W. Deyoe, G L. Allee, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

One hundred forty-six pigs were used to study the effects of steam pelleting a corn-soybean meal diet on pig performance. Treatments included ground meal, meal steam conditioned to 80 C (176 ÌŠF) before pelleting, meal pelleted without steam conditioning, and a meal diet with 2% molasses replacing corn. Steam-conditioning the meal before pelleting resulted in less starch damage, and less electrical energy was required for pelleting. Pellet durability was considerably increased with steam conditioning. None of the processing methods studied caused significant (P<.05) improvement in daily gain, feed efficiency, or energy digestibility for weanling pigs. A significant improvement (P<.05) over the control diet in feed efficiency and energy digestibility, was found with either pelleting treatment for grower-finisher pigs. However, daily gain was not significantly (P<.05) improved.; Swine Day, Manhattan, KS, November 9, 1978

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Sources Of Forage Adjusted To Temperature Changes For Wintering Cows In Drylot, M. Mckee, K. Kimple, D.R. Ames, C.L. Willms, L.R. Corah Jan 1978

Sources Of Forage Adjusted To Temperature Changes For Wintering Cows In Drylot, M. Mckee, K. Kimple, D.R. Ames, C.L. Willms, L.R. Corah

Kansas Agricultural Experiment Station Research Reports

Cows in mid-to-late gestation gained weight when fed either milo stover silage or alfalfa hay-wheat straw but lost weight when the forage source was milo-stover bales. When supplemented with additional corn grain as temperature decreased, cows receiving milo stover stilage or alfalfa hay-wheat straw gained more eight, and cows receiving milo stover bales lost less weight than cows receiving the same forages but fed to NRC (1976) requirements.

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Forage And Grain Yields And Forage Composition Of Barley, Wheat, And Oats, J. Oltjen, K. Bolsen, W. Moore Jan 1978

Forage And Grain Yields And Forage Composition Of Barley, Wheat, And Oats, J. Oltjen, K. Bolsen, W. Moore

Kansas Agricultural Experiment Station Research Reports

We harvested barley, wheat and oat varieties at the dough stage. Average yields in tons of 65% moisture forage/acre were 9.3 (barley), 10.2 (hard wheat), 9.5 (soft wheat), and 10.0 (oats). Barley variety yields varied most because of winter kill. Barley forages were the most digestible; oats, the least digestible. Crude fiber and grain contents of the forages were highly correlated with digestibility. Barley yielded highest in digestible dry matter, but hard wheat yields were more consistent from year to year.

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Effect Of Aureomycin And Rumensin On Performance Of Finishing Heifers, Jack G. Riley, Ronald V. Pope Jan 1978

Effect Of Aureomycin And Rumensin On Performance Of Finishing Heifers, Jack G. Riley, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

We used 210 yearling Hereford heifers to evaluate the efficacy of Aureomycin and Rumensin fed alone and in combination. Each product is cleared by the FDA for use in feedlot rations as an individual feed additive, however, additional clearance must be obtained to use the two products in combination in the same ration. Aureomycin effectively controlled live abscessed, and Rumensin improve feed efficiency by 8.7%.

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Effects On Carcass Traits Of Beef Ration Energy Level And Length Of Feeding, Dell M. Allen, Melvin C. Hunt, Donald H. Kropf, A.R. Harrison, B.E. Brent, Jack G. Riley, Curtis L. Kastner Jan 1978

Effects On Carcass Traits Of Beef Ration Energy Level And Length Of Feeding, Dell M. Allen, Melvin C. Hunt, Donald H. Kropf, A.R. Harrison, B.E. Brent, Jack G. Riley, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

We used 150 Angus yearling steers of similar background from the Livestock and Meat Industry Council cattle-flow project. Each was assigned to one of the 12 treatments (10 per treatment) involving low-, medium-, and high-energy rations (calculation to supply 34, 45, and 58 megacalories per 100 lbs. ration for net energy of production). Times on rations were 56, 91, 119, 147, and 175 days. Ten steers were fed a submaintenance ration of prairie hay 28 days before slaughter, and 10 served as controls (slaughtered when study started).

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Predicting Cattle Performance From Mathematical Models, B.E. Brent, A. Chestnut, P. George Jan 1978

Predicting Cattle Performance From Mathematical Models, B.E. Brent, A. Chestnut, P. George

Kansas Agricultural Experiment Station Research Reports

Tables based on a mathematical model are presented that allow cost of gains by steers at various weights to be calculated. An example illustrate how to use the tables to help with economic decisions.

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