Test-day milk yield as a selection criterion for dairy buffaloes (Bubalus bubalis Artiodactyla, Bovidae)
نویسندگان
چکیده
منابع مشابه
Test-day milk yield as a selection criterion for dairy buffaloes (Bubalus bubalis Artiodactyla, Bovidae)
Due to the great demand for buffalo milk by-products the interest in technical-scientific information about this species is increasing. Our objective was to propose selection criteria for milk yield in buffaloes based on total milk yield, 305-day milk yield (M305), and test-day milk yield. A total of 3,888 lactations from 1,630 Murrah (Bubalus bubalis) cows recorded between 1987 and 2001, from ...
متن کاملGenetic parameters for milk, fat and protein yields in Murrah buffaloes (Bubalus bubalis Artiodactyla, Bovidae)
The objective of the present study was to estimate genetic parameters for test-day milk, fat and protein yields and 305-day-yields in Murrah buffaloes. 4,757 complete lactations of Murrah buffaloes were analyzed. Co-variance components were estimated by the restricted maximum likelihood method. The models included additive direct genetic and permanent environmental effects as random effects, an...
متن کاملIn-Vitro Indicators of Natural Resistance and Milk-Producing Ability in Dairy Buffaloes (Bubalus bubalis)
The aim of this study was to explore the possibility of detecting novel phenotypes of natural resistance at the molecular level through the in-vitro stimulation of monocyte-derived macrophages (MDMs). This study was conducted with 16 healthy buffaloes who were reared for milk production and for whom data on milk-producing ability were available for several lactations. MDMs from circulating mono...
متن کاملComparison of non-linear models to describe the lactation curves for milk yield and composition in buffaloes (Bubalus bubalis).
In order to describe the lactation curves of milk yield (MY) and composition in buffaloes, seven non-linear mathematical equations (Wood, Dhanoa, Sikka, Nelder, Brody, Dijkstra and Rook) were used. Data were 116,117 test-day records for MY, fat (FP) and protein (PP) percentages of milk from the first three lactations of buffaloes which were collected from 893 herds in the period from 1992 to 20...
متن کاملComparison of non-linear models to describe the lactation curves for milk yield and composition in buffaloes (Bubalus bubalis)
In order to describe the lactation curves of milk yield (MY) and composition in buffaloes, seven non-linear mathematical equations (Wood, Dhanoa, Sikka, Nelder, Brody, Dijkstra and Rook) were used. Data were 116 117 test-day records for MY, fat (FP) and protein (PP) percentages of milk from the first three lactations of buffaloes which were collected from 893 herds in the period from 1992 to 20...
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ژورنال
عنوان ژورنال: Genetics and Molecular Biology
سال: 2008
ISSN: 1415-4757
DOI: 10.1590/s1415-47572008000400012