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An Evaluation Of Seven Pioneer Corn Hybrids For Silage And A Comparison Of Irrigated Vs Dryland Silages, D.G. Tiemann, K.K. Bolsen, R. Suazo, D. Johnson
An Evaluation Of Seven Pioneer Corn Hybrids For Silage And A Comparison Of Irrigated Vs Dryland Silages, D.G. Tiemann, K.K. Bolsen, R. Suazo, D. Johnson
Kansas Agricultural Experiment Station Research Reports
Seven Pioneer corn hybrids and one grain sorghum hybrid were grown under both irrigated and dryland conditions in 1988 and compared for agronomic and silage quality traits. Com hybrid silage yields ranged from 4.5 to 7.6 tons of dry matter (OM) per acre (mean, 5.8 tons) and grain yield, from 64 to 115 bu per acre (mean, 87 bu). Pre-ensiled DM content of the corn hybrids ranged from 26.7 to 33.0% (mean, 29.5%) and plant height from 82 to 108 in. (mean, 94 in.). In a digestion trial with sheep, apparent DM digestibility ranged from 66.0 to 71.0% (mean 69.6%); …
Characteristics Of The Indigenous Microflora From Five Silage Crops In 1987, R.A. Hart, F. Niroomand, K.K. Bolsen, M.A. Lubinski, W.R. Aimutis
Characteristics Of The Indigenous Microflora From Five Silage Crops In 1987, R.A. Hart, F. Niroomand, K.K. Bolsen, M.A. Lubinski, W.R. Aimutis
Kansas Agricultural Experiment Station Research Reports
Indigenous lactic acid bacteria (LAB) were isolated from five silage crops in the 1987 growing season: wheat, alfalfa, com, interseeded grain sorghum and soybeans, and forage sorghum. All crops had post-harvest LAB counts that exceeded 5 x 105 colony-forming units/g. There were no significant correlations between rate of fermentation during the first 7 d post-ensiling and the indigenous LAB counts. However, corn and sorghum, which fermented rapidly, had higher populations of homofermentative LAB, and the isolates showed higher rod to cocci ratios compared to the other three crops. Most of the homofermentative rods isolated were Lactobacillus plantarum, and most of …
Effects Of Rumen-Escape Lipid In A Range Supplement On Postpartum Reproductive Function In Beef Cows, R.B. Hightshoe, R.C. Cochran, L.R. Corah, D.L. Harmon, G.H. Kiracofe
Effects Of Rumen-Escape Lipid In A Range Supplement On Postpartum Reproductive Function In Beef Cows, R.B. Hightshoe, R.C. Cochran, L.R. Corah, D.L. Harmon, G.H. Kiracofe
Kansas Agricultural Experiment Station Research Reports
Postpartum cows receiving a range supplement containing rumen-escape lipid exhibited altered hormone and cholesterol levels compared to cows not fed lipid. Sixty-seven percent of lipid-fed cows exhibited a normal (18.2 d) first estrous cycle vs 33% for cows not receiving lipid. Incorporation of rumen-escape lipid into range supplements appears to significantly improve postpartum reproductive characteristics.
Seventeen Years Of Kansas Central Bull Tests, R.R. Schalles, B.J. Ward, K.O. Zoellner, L.C. Martin
Seventeen Years Of Kansas Central Bull Tests, R.R. Schalles, B.J. Ward, K.O. Zoellner, L.C. Martin
Kansas Agricultural Experiment Station Research Reports
Weights. frame scores. scrotal circumferences, and prices of bulls increased significantly over 17 years. Angus had the greatest increase in birth weight, average daily gain (ADG) during test, adjusted yearling weight, and frame score, whereas Simmental had the greatest increase in adjusted weaning weight. Backfat and ribeye area decreased over this period. Large frame score had the greatest effect on increasing sale priCe of bulls. Gelbvieh bulls with heavy birth weights sold for less, whereas heavy birth weight Limousin and Polled Hereford bulls sold for more. Rank correlations indicated a significant change in rank between 112- and 140-d ADG. About …
Managing Beef Genotypes For Profit: A Computer Simulation, R.R. Schalles, L.C. Martin, K.O. Zoellner
Managing Beef Genotypes For Profit: A Computer Simulation, R.R. Schalles, L.C. Martin, K.O. Zoellner
Kansas Agricultural Experiment Station Research Reports
In a computer simulation based on KSU data, cattle bred and managed to be moved directly from weaning to feedlot and slaughtered at a young age produced the greatest profit. Cattle that were too small or too large and management systems that increased age at slaughter were less profitable. This accelerated system of production allows a producer to take advantage of superior genetics and the economic opportunities they provide, especially with retained ownership. The beef industry has the opportunity to continue to produce quality beef, while reducing days to slaughter by taking advantage of the higher efficiency of feed conversion …
Relationship Of Milk Production In Angus And Simmental Cows With Milk Expected Progeny Differences (Epds) And Calf Weaning Weight, T.T. Marston, D.D. Simms, R.R. Schalles, K.O. Zoellner, L.C. Martin, G.M. Fink
Relationship Of Milk Production In Angus And Simmental Cows With Milk Expected Progeny Differences (Epds) And Calf Weaning Weight, T.T. Marston, D.D. Simms, R.R. Schalles, K.O. Zoellner, L.C. Martin, G.M. Fink
Kansas Agricultural Experiment Station Research Reports
Spring and fall calving Angus (n==86) and Simmental (n==96) cows at three different locations in Kansas were used to evaluate the relationships between milk production, Milk Expected Progeny Difference (Milk EPD), and calf weaning weight. A change of 1 lb in Milk EPD resulted in 4.95 lb change in calf weaning weight in Angus and 4.60 lb in Simmental. Each lb increase in Milk EPD predicted a 69.87 lb increase in total lactation milk production in Angus and 70.741b in Simmentals. Positive correlations were .40 and .64 between Milk EPD and total milk produced per lactation and .24 and .49 …
Evaluation Of Wheat Middlings-Based Supplements At Different Crude Protein Concentrations For Cattle Consuming Winter Range Forage, G.D. Sunvold, R.C. Cochran, E.S. Vanzant
Evaluation Of Wheat Middlings-Based Supplements At Different Crude Protein Concentrations For Cattle Consuming Winter Range Forage, G.D. Sunvold, R.C. Cochran, E.S. Vanzant
Kansas Agricultural Experiment Station Research Reports
Influence of increasing crude protein concentration in a wheat middlings-based supplement was evaluated in an intake/digestion trial. Protein-supplemented steers demonstrated increased (P<.01) intake of dormant, bluestem-range forage when compared with unsupplemented steers. Although increasing concentration of supplemental crude protein from 15 to 20% substantially increased (P<.01) forage and total dry matter intake. only slight increases in forage and total dry matter intake occurred when the concentration exceeded 20%. Protein supplementation increased (P<.01) fiber and dry matter digestibilities. Additionally. fiber digestibility tended (P=.087) to increase with increasing crude protein concentration of the supplement. Results suggest that when feeding a wheat middlings-based supplement. the crude protein concentration should be 20% or higher to optimize use of poor-quality forage.
Level And Method Of Feeding Dehydrated Alfalfa Pellets As A Protein Supplement For Beef Cows Grazing Winter Flint Hills Range, E.S. Vanzant, R.C. Cochran, L.R. Corah
Level And Method Of Feeding Dehydrated Alfalfa Pellets As A Protein Supplement For Beef Cows Grazing Winter Flint Hills Range, E.S. Vanzant, R.C. Cochran, L.R. Corah
Kansas Agricultural Experiment Station Research Reports
Four winter protein supplementation schemes were studied using 116 beef cows grazing Flint Hills range. The treatments were: 1) 4.0 lb soybean meal/sorghum grain (27.3% crude protein (CP» per head daily (SS), 2) 4.0 lb dehydrated alfalfa pellets (DEHY. 20.0% CP) per head daily (LO-DEHY), 3) 5.5 lb DEHY per head daily (HI-DEHY), and 4) DEHY fed at levels calculated to provide 4.0 lb per head daily with less fed in early winter and more fed in late winter (STAGGER-DEHY). The HI-DEHY and SS treatments resulted in higher (P<.05) weight gains and smaller (P<.05) losses in body condition before calving than the other two treatments. The HI-DEHY group had less cumulative weight loss (P<.05) at calving than the SS group. Cow performance was similar (P>.10) for the LO-DEHY and STAGGER-DEHY groups. Cow reproductive performance and …
Influence Of Supplementation Method On Forage Use And Grazing Behavior Of Beef Cattle Grazing Bluestem Range, S.D. Brandyberry, R.C. Cochran, E.S. Vanzant, T. Delcurto, J.E. Schneider, L.R. Corah
Influence Of Supplementation Method On Forage Use And Grazing Behavior Of Beef Cattle Grazing Bluestem Range, S.D. Brandyberry, R.C. Cochran, E.S. Vanzant, T. Delcurto, J.E. Schneider, L.R. Corah
Kansas Agricultural Experiment Station Research Reports
Fifteen ruminally and 12 esophageally fistulated steers were used in two 28-d trials (late summer and early winter) to determine the influence of method of supplementation on forage use and grazing behavior. 1Ceatments were: 1) self-feeding supplement with salt to limit intake; 2) daily hand-feeding supplement and salt; 3) daily hand-feeding supplement without salt. Forage intake was not affected by season or supplementation method; however, total diet organic matter digestibility was higher in the late summer (P<.01) and lower when steers received supplement without salt (P<.05). Supplementation method did not affect the time that animals spent grazing or the distance travelled; however, both were greater (P<.01) during the summer period. Self-feeding supplement did not appear to adversely affect forage use in grazing beef steers.
Ensileability Of Alfalfa: Cutting, Maturity And Treatment Effects, J.L. Curtis, C. Lin, K.K. Bolsen
Ensileability Of Alfalfa: Cutting, Maturity And Treatment Effects, J.L. Curtis, C. Lin, K.K. Bolsen
Kansas Agricultural Experiment Station Research Reports
Analysis of ensiling characteristics from late-bud, 10% bloom, and 50% bloom alfalfa, taken within each of four cuttings identified higher pre-ensiled dry matter (DM) content during the first two cuttings, whereas crop buffer capacity was weakest during the third cutting and subsequently strongest throughout the fourth cutting. Initial pH was lowest at the first cutting and increased with each cutting thereafter. Dry matter increased linearly within maturity, whereas late-bud maturity had the highest buffer capacity and initial pH. From hr 24 until d 90, the pH values were consistently highest for late-bud and lowest for 50% bloom silage. 1featments receiving …
Indigenous Microflora On Alfalfa And Corn, And Population Changes During Ensiling, C. Lin, R.A. Hart, K.K. Bolsen, J.T. Dickerson, J.L. Curtis
Indigenous Microflora On Alfalfa And Corn, And Population Changes During Ensiling, C. Lin, R.A. Hart, K.K. Bolsen, J.T. Dickerson, J.L. Curtis
Kansas Agricultural Experiment Station Research Reports
Lactic acid bacteria (LAB), Enterobacteriaceae, yeasts, molds, and lactate-using yeasts were examined on four cuttings of alfalfa, each at three maturity stagest and three com hybrids in 1989. In addition, microflora population changes were traced during ensiling for the second and fourth cutting alfalfas and the three com hybrids. Enterobacteriaceae were predominant on alfalfa; yeasts, molds, and Enterobacteriaceae predominated on com. Higher proportions of lactate-using yeast were found on com than alfalfa. Lactic acid bacteria comprised a small (104 to 105 CFU/g) proportion of the total (lot») populations, with streptococci the main indigenous LAB group. Lactobacilli, pediococci, and leuconostoc were …
Effect Of Niacin Supplementation Of Stockers Grazing Tall Fescue Pastures, F.K. Brazle, K.P. Coffey, L.R. Corah, Joseph L. Moyer
Effect Of Niacin Supplementation Of Stockers Grazing Tall Fescue Pastures, F.K. Brazle, K.P. Coffey, L.R. Corah, Joseph L. Moyer
Kansas Agricultural Experiment Station Research Reports
In three trials, there was no gain response by stockers offered supplemental niacin while grazing tall fescue pasture in the spring or fall. There was a trend toward lower body temperatures for niacin-supplemented cattle, but this was not significant. Niacin fed at 2 to 4 g per head daily did not reduce the fescue endophyte fungus problem.