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Cattlemen's Day, 1992
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Browsing Cattlemen's Day, 1992 by Author

Browsing Cattlemen's Day, 1992 by Author "Larson, R.L."

Now showing items 1-6 of 6

Effect of deworming with Ivomec® on reproductive performance of yearling beef heifers

Larson, R.L.; Corah, L.R.; Spire, M.F.; Cochran, R.C. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1992)

To determine the effect of deworming fallborn yearling heifers on reproductive parameters, 78 heifers were allotted to a either Ivomec® or control treatments. The heifers were dewormed in June and October when they ...
Effects of niacin and aspirin on serum prolactin and body temperature of heifers fed endophyteinfected tall fescue

Larson, R.L.; Corah, L.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1992)

Feeding niacin to cattle consuming endophyte (Acremonium coenophialum)-infected tall fescue elevated their serum prolactin concentrations to levels similar to those of heifers fed hay containing a low content of ...
The effects of slow-release copper boluses on cow reproductive performance and calf growth

Arthington, J.D.; Larson, R.L.; Corah, L.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1992)

Two Kansas cow/calf herds known to be copper deficient were utilized to examine the effect of slow-release copper boluses. In herd I, 34 spring-calving cows and calves were divided into a treated and control group at ...
Interrelationship between copper and bovine health

Larson, R.L.; Arthington, J.D.; Corah, L.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1992)

Trace mineral nutrition is important to production efficiency and animal health. Trace mineral imbalances may be the roots of many diagnosed or undiagnosed problems in a herd. The low cost of a complete mineral ...
Synchronization of estrus in yearling beef heifers with the MGA®/prostaglandin F2α system: III. timed insemination after 72 hours of estrous detection

Larson, R.L.; Corah, L.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1992)

The percentage of heifers conceiving to artificial insemination (AI) following melengestrol acetate/prostaglandin F2"(MGA®/PG) estrous synchronization can be increased by mass insemination of all heifers not showing estrus ...
Synchronization of estrus in yearling beef heiferswith the melengestrol Acetate®/prostaglandin F2"system: II. timed insemination

Larson, R.L.; Corah, L.R.; Viker, S.V. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1992)

Inseminating heifers 72 hr after the PG injection in the melengestrol acetate/ prostaglandin F (MGA®/PG) estrous synchronization system, without regard to behavioral estrus, tended to improve (P=.2) the percent of ...

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Browsing Cattlemen's Day, 1992 by Author "Larson, R.L."

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