Zobrazeno 1 - 10
of 13
pro vyhledávání: '"H. L. Barr"'
Publikováno v:
Journal of Dairy Science. 75:3562-3567
One hundred seventy-six Holstein cows were assigned to be used for foundation matings to determine effects of corrective mating for type on type traits, production, and longevity of first generation daughters. At parturition, cows were paired by age
Autor:
H. L. Barr, F.R. Allaire
Publikováno v:
Journal of Dairy Science. 73:1625-1630
Sire selection methods were compared by stochastic simulation for improvement in a three-trait, quadratic merit function. Selection indexes included milk, udder depth, and rear leg set phenotypes recorded on cows and bull progeny. The progeny index p
Publikováno v:
Journal of Dairy Science. 60:1117-1124
One hundred forty-four dairy cows of five breeds with a total of 184 parturitions were assigned randomly by breed and parity to a reproductive herd health program and control group for 2 yr. Animals of herd health program averaged 1.85, 1.73, 73.1, a
Publikováno v:
Journal of Dairy Science. 65:828-834
One hundred-fifty diarymen in north-eastern Ohio, whose herds had a history of persistently high Wisconsin Mastitis Test scores, were invited to participate in this project, with 43 agreeing to do so. These dairymen were divided into two experimental
Publikováno v:
Journal of Studies on Alcohol. 45:440-452
A study of 2-yr treatment outcome and of mortality in the following 8 yr was conducted on all first admissions to Eagleville Hospital in 1970 (503 alcoholics and 221 drug addicts; 9% women). The average age of the alcoholics was 41.6 vs 23.0 for the
Publikováno v:
Journal of the American Veterinary Medical Association. 176(8)
Reproductive herd health programs have been advocated for many years, and rational approaches that are cost effective have been demonstrated. Dissemination of this information to dairymen can help create a demand for veterinary service. Similarly, th
Autor:
L E, Heider, H L, Barr
Publikováno v:
Journal of the American Veterinary Medical Association. 170(10 Pt 2)
Research has shown the effectiveness of teat dipping and medically treating all nonlactating cows to control mastitis. However, there is a problem of getting dairy-men to accept the program. Improved educational programs might be helpful. Some means
Autor:
H L, Barr
Publikováno v:
The American journal of drug and alcohol abuse. 3(1)
Publikováno v:
NIDA research monograph. 55
Publikováno v:
Proceedings. National Conference on Methadone Treatment. 1