Bovine granulocytopathy syndrome of holstein-friesian calves and heifers.
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چکیده
منابع مشابه
Intake and annual performance of Limousin × Holstein-Friesian and Simmental × Holstein-Friesian beef suckler cows, and pre-weaning growth of their calves
Intake and annual performance of Limousin × Holstein-Friesian and Simmental × Holstein-Friesian beef suckler cows, and pre-weaning growth of their calves Beef cross dairy heifers remain a significant source of replacement breeding stock for the suckler herd in Ireland. Previous studies at this centre have compared Hereford × Friesian beef suckler dams with Charolais × Friesian and Limousin × Fr...
متن کاملInductions of superovulation using several FSH regimens in Holstein-Friesian heifers.
Note Eighty-three Holstein-Friesian virgin heifers were randomly divided into four groups and superovulated with one of the four FSH regimens as follows : Group I) twice daily injections of a constant dose of 5 mg of FSH for a period of 4 days, giving a total dose of 40 mg in 8 fractions ; Group II) as in Group I with additional 5 mg of FSH on the 5th day, giving a total dose of 45 mg ; Group I...
متن کاملAssessing adaptive immune response phenotypes in Australian Holstein-Friesian heifers in a pasture-based production system.
The objective of this study was to determine the repeatability of ranking Holstein-Friesian heifers reared in an Australian pasture-based production system for immune responses (IR) when ranking was based on secondary versus tertiary IR. Further objectives were to investigate associations between IR and stress responsiveness, ADG and resistance to internal parasites. A total of 100 heifers were...
متن کاملReproductive Performance for Holstein Friesian × Arsi and Holstein Friesian × Boran Crossbred Cattle
The study was carried out at Agarfa ATVET College dairy farm to evaluate the reproductive performance of Holstein Friesian× Arsi and Holstein Friesian ×Boran cattle. For the study, records compiled from 1983 to 2012 at the Agarfa dairy farm were used as original data. The effects of breed, bloodlines, season and parity on the reproductive traits were evaluated. Data were analyzed using the gene...
متن کاملMortality in Holstein-Friesian calves and replacement heifers, in relation to body weight and IGF-I concentration, on 19 farms in England.
The incidence of mortality and culling in Holstein-Friesian heifers from birth through first calving was determined on 19 dairy farms selected from across southern England. The outcome of 1097 calvings was determined. Size (BW, heart girth, crown-rump length and height at withers) and insulin-like growth factor-I concentration of live heifer calves were measured at a mean age of 26 ± 0.7 days (...
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ژورنال
عنوان ژورنال: The Japanese Journal of Veterinary Science
سال: 1987
ISSN: 0021-5295,1881-1442
DOI: 10.1292/jvms1939.49.733