Temperament during Milking Process and its Effect on Behavioral, Productive Traits and Biochemical Parameters in Friesian Dairy Cows
نویسندگان
چکیده
منابع مشابه
genetic parameters estimation of age at first calving and its effect on productive traits of holstein dairy cows
the aim of this study was to estimate genetic parameters of age at first calving and its relationship with productive traits of holstein dairy cows. a total of 24491 first lactation records (2x 305d) which were collected from 1995 to 2009 were used. the general linear model (glm) procedure was applied to determine effective factors on studied traits. herd-year-season (hys) and age at first calv...
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15 صفحه اولComparative Effect of Different Milking Methods and Udder Hygiene on Somatic Cell Count and Milk Quality in Dairy Cows
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The objective of this study was to determine the effects of superovulation (SOV) on serum and uterine biochemical parameters, uterine bacteriology and cytology and number of transferable embryos (TE). Dairy cows were placed on a Presynch/CIDR Synch protocol. The SOV group was superovulated, induced in estrus, and inseminated, whereas the control group was induced in estrus and inseminated witho...
متن کاملMilking-time Test – Methodology and Assessment of Vacuum Recordings during Machine Milking of Dairy Cows
The aim of the study was to improve the basic understanding and the methodology of routine milking-time testing by determining the required sampling frequency and number of cows and milkings needed to be measured in order to yield representative results. Milking-time tests represent the most direct method to validate the system vacuum of a milking machine, both the aptitude of vacuum production...
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ژورنال
عنوان ژورنال: Advances in Animal and Veterinary Sciences
سال: 2017
ISSN: 2307-8316
DOI: 10.17582/journal.aavs/2017/5.12.508.513