نتایج جستجو برای: sahiwal bull
تعداد نتایج: 7960 فیلتر نتایج به سال:
Cutaneous evaporative heat loss in Bos indicus and Bos taurus has been well documented. Nonetheless, how crossbreds with different fractional genetic proportions respond to such circumstances is of interest. A study to examine the physiological responses to cutaneous evaporative heat loss, also lactation period and milk yield, were conducted in Sahiwal (Bos indicus, n = 10, 444±64.8 kg, 9±2.9 y...
The present investigation was undertaken to determine the genetic worth of Frieswal (62.5% HF × 37.5% Sahiwal) young bulls through progeny testing under field conditions in Kerala state, India. A total 65 were evaluated based on 1037 first lactation records their daughters calved over a period 15 years from 1995 2010 used for study. overall average breeding value 305-days milk yield estimated a...
Genetic improvements of livestock is mainly depends on selective breeding of animal with its superior phenotypes. Identification and use of molecular markers for production and economical traits has been ensured the better health and productivity of cattle. Cytochrome P450, family 11, subfamily b, polypeptide 1 (CYP11B1) gene is a candidate affecting milk composition traits as adjacently locate...
this study aimed at determining the physico-morphological attributes, in vitrofertilityand their interrelationships in semen of sahiwal bulls. semen samples werecollected weekly for 6 weeks from ten mature sahiwal bulls divided randomly into 5 groups. the mean (±sem) of ejaculate volume (ml), mass activity (score 0-5), progressive sperm motility (%), sperm concentration (106/ml), live sperm (%)...
The study was conducted to evaluate the effect of thermal stress on expression profile of genes related to apoptosis in peripartum Sahiwal cows. For this, twelve pregnant dry Sahiwal cows were selected from Livestock Research Centre at National Dairy Research Institute, Karnal. The cows were divided into two groups consisting of six Sahiwal cows each. Cows of group I calved during thermoneutral...
Effect of Molasses Feeding on Biochemical and Hormonal Parameters in Sahiwal and Karan Fries Heifers
The present study was designed to investigate the effect of molasses feeding on biochemical and hormonal parameters in Sahiwal and Karan Fries heifers under two feeding regimes, i.e. feeding regime-1, as per the NRC (2001) and feeding regime-2 having 15 % higher energy (supplementation of molasses) than NRC (2001). Twelve healthy heifers (18-24 month) of each Sahiwal and Karan Fries were select...
BACKGROUND The current study was designed to investigate the effect of supplementation of Flaxseed (Linumusitatisimum) oil on libido and semen quality of Nilli-Ravi buffalo bulls. METHODS In this study, 12 adult healthy bulls kept at the Semen Production Unit, Qadirabad district Sahiwal, were used. These bulls were divided into three equal groups, A, B and C. Group A was kept as control, whil...
The study was conducted to evaluate the effect of thermal stress on expression profile of genes related to apoptosis in peripartum Sahiwal cows. For this, twelve pregnant dry Sahiwal cows were selected from Livestock Research Centre at National Dairy Research Institute, Karnal. The cows were divided into two groups consisting of six Sahiwal cows each. Cows of group I calved during thermoneutral...
Beta-casein (CSN2) polymorphism in Ongole (Indian zebu) and Frieswal (HF × Sahiwal crossbred) cattle
Realizing the significant association of A1 and A2 β-casein (CSN2) polymorphism with health promoting properties and milk performance traits, the present investigation was undertaken to explore A1/A2 polymorphism in Indian zebu breed, Ongole (Bos indicus) and crossbred, Frieswal (HF × Sahiwal) cattle using allele-specific (AS)-PCR. Thirty eight Ongole cow, 124 Frieswal heifers and 48 Frieswal b...
background: suicide is one of the most important health problems in communities and knowledge of rates and epidemiology of it in any region could help in control and preventing programs .longitudinal registration of annual death data has been employed in this study. methods: in an analytical and cross sectional study pre conducted forms of suicide was engaged to register data , crude and specif...
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