نتایج جستجو برای: young bull
تعداد نتایج: 252640 فیلتر نتایج به سال:
mation of cow/calf operations running between 200-500 head reveals an investment of over $2000.00 being made for each breeding cow in land, equipment, facilities and animal unit price.1 When herd bulls are used at 1:25 to 1:40 ratios, this represents an investment of $50,000 to $80,000 which is annually dependent upon the satisfactory reproductive potential of each breeding age bull, regardless...
BACKGROUND European bison is the largest mammal in Europe with the population of approximately 4000 individuals. However, there is no report of post-mortem spermatozoa collection and cryopreservation from this species and the aim of this study was to test if the epididymal spermatozoa collected post-mortem from European bison are suitable for cryopreservation and artificial insemination (AI). ...
Animal related injuries are frequently reported in countries where the bulls are used for traditional show events like bullfighting and bull-running as well as in countries where the farming and livestock rearing is predominantly practiced. Although, they are rare among other penetrating traumas, they often tend to be mortal. They have a unique pattern of injury mechanism. Bull gore injuries fr...
1905 1. Ueber die Adenase. Z. physiol. Chern. Strassb., 1905, 44, 1-10 (with W. Jones (1)). 1908 2. Tuberculosis of the stomach; tuberculous cavities of the liver; with report of a case. Johns Hopk. Hosp. Bull., 1908, 19, 223-228. 3. A case of sigmoid kidney. Johns Hopk. Hosp. Bull., 1908, 19, 229-230. 4. Changes in the pancreatic ducts, and their relation to chronic pancreatitis. Johns Hopk. H...
—The bull trout Salvelinus confluentus is believed to be among the most thermally sensitive species in coldwater habitats in western North America. We conducted a comprehensive field assessment of thermal habitat associations throughout the southern margin of the species’ range. We developed models of thermal habitat associations using two data sets representing a geographically diverse range o...
Twoand 3-year-old beef bulls were exposed to 25 or 40 beef cows on pasture during a 90-day breeding period. Reproductive performance of bulls by age of bull and size of cow group was evaluated in terms of percentage calf crop. Results indicated that reproductive performance of 2-year-old bulls was higher, but not significantly different (P>.05), than that of 3-year-old bulls. The percentage cal...
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