Livestock Feeders' Day, 1963
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Item Open Access Concrete floor vs. elevated wooden, slotted floor(Kansas Agricultural Experiment Station, 2011-05-06) Koch, B.A.The practice of raising pigs on an elevated slotted floor is receiving wide publicity. Slotted floors have been used in various parts of the world for many years, but they have only recently been used extensively in this country. Slotted floors take some of the labor from swine production and permit pigs in growing-finishing units to be crowded.Item Open Access Kansas Swine Improvement Association Testing Station(Kansas Agricultural Experiment Station, 2011-05-06) Koch, B.A.; Moyer, W.A.The boar testing program was changed to a slaughter-pig testing program a year ago. The testing station committee of the Association made the change because of the difficulty in identifying carriers of infectious atrophic rhinitis. In the group of boars tested during the winter of 1961-62, one of the better performing boars showed positive symptoms of infectious atrophic rhinitis soon after he sold. Yet he had shown no symptoms of infection while on test.Item Open Access The effects of adding protein to dry-rolled sorghum grain fattening rations(Kansas Agricultural Experiment Station, 2011-05-06) Smith, E.F.; Richardson, D.; Cox, R.F.; Boren, Fred W.Previous work (Bulletin 447) indicated that sorghum grain fattening rations supplemented with 0.5 pound per head per day of soybean oil meal produced gains minimal in efficiency and carcasses equal to those from heifers fed 1 pound of protein per had daily. With each increase of 0.5 pound of protein (0, 0.5, and 1.0) came a 0.20-pound increase in average daily gain, an increase in feed efficiency, and an increase in profit over feed cost.Item Open Access Effects of dietary nitrate and nitrite on growing-finishing pigs(Kansas Agricultural Experiment Station, 2011-05-06) Sukhonthasarnpa, S.; Parrish, D.B.; Koch, B.A.The presence of nitrates and nitrites in feed and drinking water of farm animals apparently has caused some serious nutritional problems. This study was to establish more clearly some ways the nitrites interfere with normal processes in the animal body.Item Open Access Improving beef cattle through breeding methods(Kansas Agricultural Experiment Station, 2011-05-06) Smith, W.H.; Wheat, J.D.; Spies, H.G.The purebred Shorthorn cattle breeding program was continued during 1962 without modification of breeding plans. Inbreeding was continued in the two lines. The Wernacre Premier line is in its firth generation and the Mercury line, its fourth generation of inbreeding. No outside breeding or outcrossing has been introduced in either line since the project was initiated in 1949. The inbreeding plan has been basically to continue successive generations of half-sibbing in both lines.Item Open Access Changes in type since 1960(Kansas Agricultural Experiment Station, 2011-05-06) Good, D.America owes a great deal of the founders of the Hereford, Angus and Shorthorn breeds of beef cattle, the dominant U.S. beef breeds. Early Scotch and English breeders in developing the beef breeds aimed to breed cattle with superior beef quality. This, by necessity, had to be done under, in many instances, vigorous environmental conditions.Item Open Access Factors affecting the feeding value of sorghum silage(Kansas Agricultural Experiment Station, 2011-05-06) Smith, E.F.; Richardson, D.; Fairbanks, G.E.; Boren, Fred W.This is the third year of an experiment designed to investigate factors that affect the feeding value of sorghum silage. Data reported in Circular 383, 1960-61, indicated that almost without exception, average daily gain, silage dry matter consumption, and silage dry matter percent were positively correlated. Pounds of silage dry matter required to produce a pound of gain were negatively correlated with average daily gain, silage dry matter and daily dry matter consumption. Winter gains also ranked in the same order as the percentage of grain in the silage, i.e., the higher the grain content, the greater the gain. However, digestion coefficients, using steer calves, were lower with the high-grain silage, suggesting the possibility of appreciable nutrient loss in undigested grain.Item Open Access The effect of added calcium and phosphorus with and without added protein in the ration of steers on bluestem pasture(Kansas Agricultural Experiment Station, 2011-05-06) Drake, C.L.; Smith, E.F.; Richardson, D.; Tsien, W.S.This experiment was designed to evaluate the desirability of supplementing bluestem pasture as indicated in the title. Forty Hereford steer calves were divided into four lots of 10 each and fed the following rations per head daily: Lot 1. Two pounds of dehydrated molasses (a molasses product dried on soybean hulls). Lot 2. Two pounds of dehydrated molasses and 39.1 grams of dicalcium phosphate. Lot 3. One pound of dehydrated molasses and 1 pound of 41% corn gluten meal. Lot 4. One pound of dehydrated molasses and 1 pound of 41% corn gluten meal plus 29.6 grams of dicalcium phosphate.Item Open Access Progress in animal nutrition(Kansas Agricultural Experiment Station, 2011-05-06) Richardson, D.Not one nutrient has been created, yet tremendous progress has been made in the relatively new field of animal nutrition, primarily by scientific investigations that have more clearly defined nutrient needs and interrelationships in the animal body and more knowledge of nutrient content and availability in various feedstuffs. Contributions also have been made by improved feedstuff preparation, animal breeding, management, and disease control.Item Open Access Investigations of milk-fat lamp production practices for Western Kansas(Kansas Agricultural Experiment Station, 2011-05-06) Menzies, C.S.; Hillman, M.; Banbury, Evans E.The Colby ewe flock consists of approximately 325 four-and five-year-old fine-wool ewes, that were purchase in southwest Texas as yearlings. Purebred Hampshire ewes are used. The first attempts to determine the effect that varying the energy intake of ewes during a preflushing period has on lambing performance of the ewes. The second test compares various rations for flushing ewes, and the third studies various management practices and rations for ewes and lambs.Item Open Access The value of supplemental cobalt for heifers on fattening rations(Kansas Agricultural Experiment Station, 2011-05-06) Smith, E.F.; Richardson, D.; Drake, C.L.; Boren, Fred W.The 40 heifer calves, 10 per lot, used in this experiment were good to choice Herefords from near Fort Davis, Texas, and were assigned on a random weight basis to their treatments.Item Open Access Different methods of managing bluestem pastures(Kansas Agricultural Experiment Station, 2011-05-06) Smith, E.F.; Anderson, K.L.; Drake, C.L.; Boren, Fred W.This experiment was designed to determine the effect of different stocking rates, of deferred grazing, and of pasture burning on cattle performance, productivity of pastures, and range condition as determined by plant population changes. In addition to the yearling report, a summary of cattle gains for the past 13 years of the study is included.Item Open Access The relation of feathering and overflow fat of lamb carcasses to the grade of the lamb, degree of marbling, and market value of the lamb.(Kansas Agricultural Experiment Station, 2011-05-05) Mackintosh, D.L.; Merkel, R.A.; Menzies, C.S.; Kropf, Donald H.; Forrest, J.C.A total of 279 crossbred lambs were slaughtered over a three-year period at an approximate live weight of 90 pounds. USDA carcass grade and the various quality factors influencing grade were scored by a representative of the Federal Grading Service. The rack was dissected into fat, lean, bone, overflow and intercostal muscle. The longissmus dorsi and intercostals muscle were removed for fat analyses by the Modified Babcock Method. Color was determined in the longissimus dorsi and rectus abdominis with a Photovolt Reflectance Colormimeter. Loin samples were used for taste panel evaluations. Myoglobin concentration, by the Poel Cyano Method, pH, and expressible moisture, by the filter paper method, were also determined in the longissmus dorsi, rectus abdominals, and intercostals muscles.Item Open Access Swine Breeding Investigations(Kansas Agricultural Experiment Station, 2011-05-04) Koch, B.A.A crossbred barrow sired by a Duroc boar (University Charm 16753), and out of a Poland China sow (Prince’s Maiden 20-521492), was first place crossbred barrow at the 1962 Kansas State Fair. The barrow produced the champion carcass when slaughtered.Item Open Access Vitamin A and dehydrated alfalfa fed individually and in combination with and without Aureomycin in a steer fattening ration(Kansas Agricultural Experiment Station, 2011-05-04) Richardson, D.; Smith, E.F.; Kingsley, K.; Boren, Fred W.Hereford yearling steers in this test were used in a previous bluestem pasture grazing test. After the grazing test was completed, they were assigned to six lots of 10 animals each on the basis of weight and uniformity to compare the value of dehydrated alfalfa as a source of vitamin A with preformed vitamin A, both individually and in combination with and without Aureomycin. The supplements supplied the same amount of protein, calcium, and phosphorus in each lot. Vitamin A value of carotene was figured on the dehydrated alfalfa at 400 I.U. per milligram of carotene; 10,000 I.U. of Vitamin A per head was fed daily for the first 84 days and 15,000 I.U. units for the remainder of the test; 70 milligrams of Aureomycin was fed per head daily. After the steers were on feed, silage was limited to 20 pounds per head daily; however, grain was fed ad lib.Item Open Access Fifty years of swine production(Kansas Agricultural Experiment Station, 2011-05-04) Koch, B.A.Changes in methods of feeding, breeding, and managing swine have been almost revolutionary the past 50 years. Consumer preference disease control , new knowledge concerning nutrition, new and more adaptable equipment, new structural methods, improved breeding techniques and specialize management all have contributed to the changes in swine production.Item Open Access Lamb feeding experiments(Kansas Agricultural Experiment Station, 2011-05-04) Menzies, C.S.; Erhart, A.B.Six hundred and forty mixed wether and ewe fine-wool, feeder lambs were received at the Zuni Indian Reservation near Gallup, N.M., October 18, 1962. They averaged 61.9 pounds at the receiving point and 58.6 pounds off railroad cars at Garden City, three days later.Item Open Access Vitamin A levels for growing-finishing pigs(Kansas Agricultural Experiment Station, 2011-05-04) Koch, B.A.Vitamin A supplementation recommendations vary considerably from station to station. Most research indicates that supplementation recommendations are generally much higher than actually necessary. This study was designed to determine performance response to low-level vitamin A supplementation of an otherwise adequate diet.Item Open Access Corn vs. sorghum and pellets vs. meal for growing-finishing swine(Kansas Agricultural Experiment Station, 2011-05-04) Koch, B.A.This is continuation of feeding trials comparing the feeding value of corn and sorghum grain under Kansas conditions. Forty feeder pigs, 12 Poland Chinas and 28 Durocs averaging 55 pounds each, were randomly divided by breed and sex into four groups. All pigs had been previously vaccinated for cholera and erysipelas and wormed with piperazine.Item Open Access Quantitative determination of the amino acid content of rumen fluid from twin steers fed soybean oil meal or urea(Kansas Agricultural Experiment Station, 2011-05-04) Richardson, D.; Tsien, W.S.Crude protein, or protein as the term is commonly used, represents all nitrogen-containing compounds in the feed. True protein is that portion of the protein which has been formed by the combining of amino acids. The value of any protein supplement is determined by its amino acid content plus the ability of the animal to synthesize true protein in the digestive tract from non-protein nitrogen sources. The purpose of this test was to determine the amino acid content of rumen fluid of steers fed soybean oil meal or urea.
