125 Temperament, health and fertility outcomes in dairy cattle
نویسندگان
چکیده
منابع مشابه
Antioxidants to Enhance Fertility in Dairy Cattle
It is one of the paradoxes of biology that oxygen, which is required for energy production in aerobic organisms, is also very toxic. Many biological reactions generate reactive oxygen species (ROS) that strip electrons from biological molecules such as fatty acids, proteins and DNA. Exposure of cells to ROS can lead to disruptions in membrane structure, reduced activity of enzymes and other pro...
متن کاملGenetic selection for temperament traits in dairy and beef cattle
Animal temperament can be defined as a response to environmental or social stimuli. There are a number of temperament traits in cattle that contribute to their welfare, including their response to handling or milking, response to challenge such as human approach or intervention at calving, and response to conspecifics. In a number of these areas, the genetic basis of the trait has been studied....
متن کاملGenetic Aspects of Fertility and Longevity in Dairy Cattle
The aim of this thesis was to explore conditions for selection and genetic improvement of fertility and longevity in dairy cattle. The background is that single-trait selection for milk production is known to lead to impaired fertility and consequently to shorter lifespan. This in turn results in financial losses and ethical concerns. Since many years, the Swedish dairy farmers have recorded mi...
متن کاملDietary Ingredients and Nutritional Management Impact Fertility in Dairy Cattle
Nutrition has an important impact on the reproductive performance of dairy and beef cattle. Energy is the major nutrient required by adult cattle. Inadequate energy intake has a detrimental effect on reproductive activity of female bovine. Cows under negative energy balance have lowered plasma glucose, insulin and IGF-I, reduced peak frequency of LH pulses, lowered plasma progesterone, and impa...
متن کاملPractical aspects of the fertility of dairy cattle.
To establish sustainability in the dairy industry, it is important that cows become pregnant at a biologically optimal time and at an economically profitable interval after calving. In this review, the results obtained from Holstein cattle in an experimental herd for dairy research are summarized. First, the effect of age at first calving of heifers on productive and reproductive performance wa...
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ژورنال
عنوان ژورنال: Animal - science proceedings
سال: 2021
ISSN: 2772-283X
DOI: 10.1016/j.anscip.2021.03.126