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Showing 1 to 20 of 261 for “"Beef cattle"”.
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Superfetation in beef cattle
Although superfetation has been reported in cattle and other species, there is considerable skepticism as to its existence due to the lack of clear evidence in these reports. Other explanations such as embryonic diapause or differential growth of twins have been suggested as more accurate …
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Genetic abnormalities in beef cattle
Digitized by Kansas Correctional Industries
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Investigating monthly beef cattle prices
… study was devoted to further investigation of beef cattle prices and factors influencing them. The same basic model was used with 1955 through 1961 data to explain Choice (R<sup>2</sup>=.9822) and Good (R<sup>2</sup>=.9919) steer prices at Chicago. However, before the relationship between price …
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Feeding 2 yr. old beef cattle
… the values of several feeds for wintering beef steers with especial regard for local conditions. 1st. 28 lbs. silage and 1 lb. cottonseed meal will maintain 1000-pound steers during the winter without a loss of more than 25 lbs. per head. 2nd. 38 lbs. silage per steer per day will give …
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Transcription profiles of differentially marbled beef cattle
… prior to RNA extraction. At 24 h post-mortem, cattle were graded and pH, drip loss, color measurements were recorded. Steaks were removed for analysis of shear force and intramuscular fat content. Four pairs of animals were identified based on similar adjusted backfat thickness but differing in …
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Site planning for commercial beef cattle feedlot operations
Typescript (photocopy).
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Comparison of buffered grazing systems for beef cattle
… rotational versus continuous grazing system for beef production within a buffer grazing system, thirty crossbred beef cows and their calves were randomly assigned to one of two grazing systems replicated twice over three years of the experiment. Each replication of the rotational system was …
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Predicting weights of beef cattle from body measurements
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science. Dept. of Animal Husbandry, 1952
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Progestin regulation of follicular dynamics in beef cattle
… can inhibit ovulation and synchronize estrus in cattle. However, long-term MGA treatment, in the absence of a corpus luteum, results in the formation of a persistent follicle (PF). Fertilization of a oocyte ovulated from a PF is associated with decreased pregnancy rates. The overall objectives …
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Methods to improve growth efficiency in beef cattle
… protein (RUP) within the diet for growing cattle is essential in meeting limiting amino acid (AA) requirements that cannot be fulfilled by microbial protein. Supplementing feedstuffs with greater RUP tend to be the most expensive ingredient within a diet. Alternative methods that increase …
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Fecal Phosphorus Characteristics of Forage-Fed Beef Cattle
… P characteristics was studied in forage fed beef steers. Eight Hereford steers were fitted with total fecal collection bags and fed four diets with a low P grass hay and supplemented with increasing amounts of a mineral source of P, dicalcium phosphate. Dietary DM P concentrations were 0.10 …
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Investigating beef cattle prices for short time periods
… attempt to contribute to price knowledge in the beef cattle sector of the livestock economy. More specifically the objectives were (1) to determine the most important variables affecting prices of fed cattle in the short run, (2) to establish the relationship between the important independent …
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Effects of Phosphorus Supplementation on Grazing Beef Cattle
… various levels of mineral P to grazing beef cattle. A producer survey and a research trial were conducted to examine the effects of supplementing mineral phosphorus (P) to grazing cattle. In the first study, mineral tags, producer surveys, and fecal, forage, and soil samples were …
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Estimation of heterotic effects on stayability in beef cattle
Stayability in beef cattle is defined as the probability that a cow remains in the herd until age six given that she has calved as a heifer. In some breeds with total herd reporting, those cows are required to calve every year. Stayability influences herd profitability by decreasing the need for …
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Determining rumen degradable protein requirements in growing beef cattle
… by calculating crude protein (CP) values, and cattle have been fed using this system for decades. However, the downside of this methodology is that it fails to partition protein content of the diet into rumen degradable protein (RDP) and rumen undegradable protein (RUP). The segmentation of …
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Selenium supplementation and selected immune responses of beef cattle
… was evaluated in three experiments. Sixty weaned beef calves, with marginal blood Se (67 μg Se/1), were allotted to one of six Se treatment groups in a 70-day experiment. Antibody responses to lysozyme were lower in calves fed 20 ppm Se salt-mineral mixture (SMM) ad libitum as compared to calves …
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Particulate matter emissions from commercial beef cattle feedlots in Kansas
Large cattle feedlots in Kansas are often considered to be large sources of particulate matter (PM), including PM with equivalent aerodynamic diameter of 10 micrometers or less (PM[subscript]10). To control PM emissions from cattle feedlots, water sprinkler systems can be implemented; however, …
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