Open Access. Powered by Scholars. Published by Universities.®
Articles 31 - 42 of 42
Full-Text Articles in Life Sciences
Predicting Beef Carcass Retail Yield From Hot Carcass Traits (1990), J.K. Apple, L.V. Cundiff, J.W. Wise, Michael E. Dikeman
Predicting Beef Carcass Retail Yield From Hot Carcass Traits (1990), J.K. Apple, L.V. Cundiff, J.W. Wise, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Hot carcasses from 288 steers were used to develop equations to predict weights and percentages of trimmed retail cuts. and trimmable fat yields from hot carcass traits. Independent variables examined were: (1) 12-13th rib fat probe; (2) lO-11th rib fat probe; (3) external fat score; (4) percent kidney knob; (5) hindquarter muscling score, and (6) carcass weight. Right sides of carcasses were fabricated into boneless cuts trimmed to .3 in. fat and weighed. Then. cuts were totally trimmed (.0 in.) and reweighed. Multiple regression equations developed from these variables accounted for 95 and 90% of the variation in total weight …
Value Of Rice Mill Feed As A Feedstuff For Backgrounding Heifers (1990), F.K. Brazle, K.P. Coffey
Value Of Rice Mill Feed As A Feedstuff For Backgrounding Heifers (1990), F.K. Brazle, K.P. Coffey
Kansas Agricultural Experiment Station Research Reports
Stocker heifers were fed diets of either 67% rice mill feed + 33 % dehydrated alfalfa pellets (RA) or a 67% grain sorghum + 33% dehydrated alfalfa pellets (GA). The RA heifers consumed more feed daily but gained slower (P<.05), resulting in poorer feed efficiency. RA heifers also had a lower percentage shrink (P<.05) during the first 2 1/2 hr of simulated trucking. Rice mill feed is a poor feedstuff for growing calves when included in rations at high levels.
Effects Of Amaferm® (Aspergillus Oryzae Fermentation Extract) On Performance And Body Temperature Of Stockers Fed Diets With Or Without Fescue Endophyte (1990), K.P. Coffey, F.K. Brazle, Joseph L. Moyer
Effects Of Amaferm® (Aspergillus Oryzae Fermentation Extract) On Performance And Body Temperature Of Stockers Fed Diets With Or Without Fescue Endophyte (1990), K.P. Coffey, F.K. Brazle, Joseph L. Moyer
Kansas Agricultural Experiment Station Research Reports
Sixty-four stocker steers were offered endophyte-free fescue hay ad libitum, with either bromegrass or high-endophyte fescue seed screenings and supplements with or without Amaferm8 (Aspergillus oryzae fermentation extract). Steers offered bromegrass seed screenings gained faster (P<.01), consumed more feed (P<.01), and converted feed dry matter to gain more efficiently (P<.01) than those fed fescue seed screenings. Amaferm did not affect stocker performance or reduce rectal temperature. Therefore, feeding high-endophyte fescue screenings reduced intake and daily gain, and Amaferm did not offset those effects.
Effects Of Finaplix® Synovex-S®, And Ralgro® Implants, Singularly Or In Combinations, On Performance, Carcass Traits, And Longissimus Palatability Of Holstein Steers (1990), J.K. Apple, D.D. Simms, Gerry L. Kuhl, Michael E. Dikeman, Curtis L. Kastner
Effects Of Finaplix® Synovex-S®, And Ralgro® Implants, Singularly Or In Combinations, On Performance, Carcass Traits, And Longissimus Palatability Of Holstein Steers (1990), J.K. Apple, D.D. Simms, Gerry L. Kuhl, Michael E. Dikeman, Curtis L. Kastner
Kansas Agricultural Experiment Station Research Reports
Over the entire feeding period (249 d). Finaplix® (F) plus Synovex-S® (S)-implanted steers had higher (P.05) among treatments. only 50% of F+S carcasses graded low Choice or higher compared to a range of 75 to 100% for the other treatments. The only meat palatability differences were tenderness scores; steaks from Sand F + R steers were less tender (P<.07) than those from Rand C steers.
Preliminary Carcass And Meat Research Results From Cycle Iv Of The Cattle Germ Plasm Evaluation Program (1990), L.V. Cundiff, R.M. Koch, K.E. Gregory, J.D. Crouse, Michael E. Dikeman
Preliminary Carcass And Meat Research Results From Cycle Iv Of The Cattle Germ Plasm Evaluation Program (1990), L.V. Cundiff, R.M. Koch, K.E. Gregory, J.D. Crouse, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Preliminary data representing two of five calf crops in Cycle IV of the Germ Plasm Evaluation Program are reported. Carcass and meat data from 454 steers produced by mating 11 sire breeds to Hereford and Angus dams were obtained. Hereford (H) and Angus (A) sires born in the late 1960's (original) and also 1982 to 1984 (new) were compared. Steers sired by the new sample of H and A sires were heavier at slaughter than those of original sires, whereas marbling and percentages of trimmed retail product (% TRP) have not changed. HA and AH had lower % TRP than …
Calves Delay Estrus Cycles In Postpartum Cows By Mechanisms Other Than Suckling (1990), S.D. Viker, G.H. Kiracofe
Calves Delay Estrus Cycles In Postpartum Cows By Mechanisms Other Than Suckling (1990), S.D. Viker, G.H. Kiracofe
Kansas Agricultural Experiment Station Research Reports
It is generally accepted that the suckling stimulus and the interactions between lactation and level of nutrition regulate the interval from calving to cycling in beef cows. However, rnastectomized cows (udder removed) kept with their calves had longer postpartum intervals to ovulation and estrus than mastectomized cows without calves. We conclude that ovulation and estrus can be suppressed by some cow-calf interaction that is independent of lactation and suckling.
Diagnosis Of Freemartinism In Heifers Born Co-Twin To A Bull (1990), B.L. Larson, G.H. Kiracofe
Diagnosis Of Freemartinism In Heifers Born Co-Twin To A Bull (1990), B.L. Larson, G.H. Kiracofe
Kansas Agricultural Experiment Station Research Reports
The wide variance in anatomical characteristics among heifers born co-twin to a bull make diagnosis of freemartinism by measurements of vaginal length or the distance between the anus and vulva unreliable. Change in serum luteinizing hormone (LH) in response to injection of estrogen or gonadotropin releasing hormone (GnRH) is different in freemartins compared to normal heifers but is also an unreliable predictor of freemartinism. Presently, the most conclusive way to establish freemartinism in a heifer born co-twin to a bull is to measure the percentage of XX and XY chromosomes in cells from whole blood, which is a specialized and …
Relationship Of Milk Production In Angus And Simmental Cows With Milk Expected Progeny Differences (Epds) And Calf Weaning Weight (1990), 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 (1990), 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 (1990), 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 (1990), 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.
Effect Of Protein Supplementation On Dormant, Bluestem-Range Forage Intake And Digestion And Protein Flow To The Small Intestine In Steers (1990), S.M. Hannah, R.C. Cochran, D.L. Harmon, E.S. Vanzant
Effect Of Protein Supplementation On Dormant, Bluestem-Range Forage Intake And Digestion And Protein Flow To The Small Intestine In Steers (1990), S.M. Hannah, R.C. Cochran, D.L. Harmon, E.S. Vanzant
Kansas Agricultural Experiment Station Research Reports
A digestion trial was conducted to determine dormant, bluestem-range forage intake, digestion, and protein flow to the small intestine in steers receiving different crude protein (CP) supplements. Dietary treatments were 1) control: no supplement; 2) low protein supplement (Low-CP): SBM + grain sorghum supplement containing 13% CP; 3) moderate protein supplement (Mod-CP): SBM + grain sorghum supplement containing 26% CP; and 4) dehydrated alfalfa pellets supplement (Dehy): supplement containing 17.5% CP. Forage intake increased an average of 36% in steers supplemented with Mod-CP and Dehy, compared to the forage intake of control steers. Forage intake of steers receiving Low-CP supplement …
Effect Of Deccox® In A Free-Choice, Grain-Mineral Mixture On Performance Of Yearlings Grazing Native Range (1990), F.K. Brazle
Effect Of Deccox® In A Free-Choice, Grain-Mineral Mixture On Performance Of Yearlings Grazing Native Range (1990), F.K. Brazle
Kansas Agricultural Experiment Station Research Reports
Including Deccox® in a free-choice, intake-limiting, grain-mineral mixture tended to increase grazing stocker gains and substantially reduced the percentage of newly arrived cattle treated for sickness and the number of treatments required per animal.
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.