منابع مشابه
Development of an ELISA-based kit for the on-farm determination of progesterone in milk
Effective reproductive management is a crucial concern in the dairy industry and missed oestrus and late recognition of unsuccessful insemination can lead to substantial financial loss. Progesterone levels change in a predictable manner with progress of the oestrus cycle and with the onset of pregnancy. We report here the development of a simple ELISA test for the measurement of progesterone le...
متن کاملOn-farm Milk Culturing and Mastitis
Over the years, many methods of milk culturing have been employed to provide information regarding mastitis prevention, treatment, and control. In general, these efforts have centered on culturing in a laboratory located at a university, milk processor, or veterinary clinic. Products available on the market and efforts required to culture milk on the farm have, in general, been unsuccessful for...
متن کاملOn-farm batch pasteurization destroys Mycobacterium paratuberculosis in waste milk.
A recent dairy survey conducted in 1996 by the National Animal Health Monitoring System suggests between 20 and 40% of dairy herds in the United States have some level of Johne's disease. This figure will continue to increase unless producers implement management regimes that will help control the spread of this disease within their herds. The neonatal calf is the target for infection with Myco...
متن کاملOn Farm Pasteurizer Management for Waste Milk Quality Control
Increased value of proteins for calf diets has caused many to consider the utilization of waste milk as a source of nutrition for the growing calf. Waste milk is comprised of transition milk from cows during the first three days after calving and that collected from cows treated with antibiotics or removed from the milking string due to other illness. Surveys from Wisconsin and results from fie...
متن کاملthe washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1988
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(88)79733-7