Management vs Productive and Reproductive Performances of Dairy Farm
نویسندگان
چکیده
منابع مشابه
Environmental and Management Stressors: Implications for Reproductive and Productive Performances of Farm Animals in the Tropics
This review examined environmental and management stressors of farm animals and the effects they have on reproductive and productive performances of livestock. Stress is revealed by the inability of an animal to cope with its environment, a phenomenon that is often reflected in a failure to achieve reproductive, productive and genetic potentials. Identification of environmental and management f...
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Calving records from April 1996 to December 2005 comprising 31863 calving events of 1173 dairy cows in a large commercial dairy herd were used to evaluate the effects of heat stress, using temperature-humidity index (THI) on milk yield and composition and reproductive performance of Holstein dairy cows under humid climatic conditions of Rasht in Iran. THI values were grouped into six groups: 30...
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To determine the effects of dry period (DP) length on milk yield, milk composition, some blood metabolites, complete blood count (CBC), body weight and score and follicular status, twenty five primiparous and multiparous Holstein cows were assigned to a completely randomized design with DP-60 (n = 13) and DP-20 (n = 12) dry period lengths. Cows in the DP-60 produced more milk, protein, SNF, ser...
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The present study was conducted with a view to know the productive and reproductive performance of Jamunapari, Black Bengal and crossbred goats in Chittagong district during the period of May to December 2012. The data on productive and reproductive traits were collected from 324 goats as a whole. In the present study, the birth weight of Jamunapari goats was higher than other crosses. The adul...
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Despite the considerable expansion of our knowledge about the bovine reproductive cycle and the increasing possibilities to intervene herein, fertility in high yielding dairy herds has unremittingly been reported to decline since last decades. Since studies reporting about this fertility decrease originate from regions all over the globe, this situation seems to be widespread and universally ac...
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ژورنال
عنوان ژورنال: Pakistan Journal of Nutrition
سال: 2008
ISSN: 1680-5194
DOI: 10.3923/pjn.2008.408.411