نتایج جستجو برای: indigenous growing cattle
تعداد نتایج: 280565 فیلتر نتایج به سال:
BACKGROUND Knowledge of linkage disequilibrium (LD) levels among different populations can be used to detect genetic diversity and to investigate the historical changes in population sizes. Availability of large numbers of SNP through new sequencing technologies has provided opportunities for extensive researches in quantifying LD patterns in cattle breeds. The aim of this study was to compare ...
The gastrointestinal lumen can directly absorb all diand tripeptide protein degradation products, and oligopeptide absorption depends on the specific peptide transport carriers, which are located in gastrointestinal epithelial cells on the brush border membrane. Yak (Bos grunniens) use N more efficiently than cattle do, which implies that yak have a specific mechanism of nonprotein utilization ...
the physiological study was carried out to determine the relation between of risk factors and occurrence of infectious mastitis disease that associated in 453 indigenous dairy cattle in farms nearby the tehran. milk samples were collected for mastitis detection by california mastitis test (cmt) .the analysis of results revealed significant association between body weight, udders depth, teats le...
Androgens have an important role in ovarian follicular growth and function, but circulating androgen concentrations are also associated with ovarian dysfunction, cardiovascular disease, and metabolic disorders in women. The extent and causes of the variation in androgen production in individuals, however, are unknown. Because thecal cells of follicles synthesize androstenedione and testosterone...
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