Pulmonary and cutaneous evaporative water losses in Sahiwal and Sahiwal x Holstein cattle during solar exposure

Dgat1 Polymorphism K232a in Sahiwal (indian Zebu) and Frieswal (holstein Friesian X Sahiwal Crossbred) Cattle

The positional candidate gene DGAT1, within QTL of BTA14, harboring a lysine to alanine substitution (K232A) is significantly associated with milk production traits. The present investigation was undertaken to estimate the frequency of the DGAT1 K232A polymorphism in Indian zebu breed, Sahiwal (B. indicus; N= 51) and crossbred, Frieswal (HF X Sahiwal; N= 126) cattle using PCR-RFLP technique. De...

Genetic Studies and Development of Prediction Equations in Jersey×Sahiwal and Holstein-Friesian×Sahiwal Half Breds

First lactation records (174) of Jersey×Sahiwal and Holstein Friesian×Sahiwal half breds under 9 sires maintained at Chandra Shekher Azad University of Agriculture and Technology, Kanpur, Uttar Pradesh, India from 1975-1983, were used to estimate the genetic parameters and to predict herd life milk yield and average milk yield per day of herd life from first lactation traits. The traits include...

Genetic Variability and Sire X Mating System Interaction for Milk Yield in Holstein-sahiwal Crosses

Selection of Sahiwal Cattle Bulls on Pedigree and Progeny

The objective of the study was to compare ranking of Sahiwal bulls selected on the basis of highest lactation milk yield of their dams with their estimated breeding values (EBVs) using an animal model. Data on 23,761 lactation milk yield records of 5,936 cows from five main Livestock Experiment Stations in Punjab province of Pakistan (1964-2004) were used for the study. At present the young A.I...

Hematological and biochemical profile during gestation period in Sahiwal cows

It was demonstrated in this study that the mean values of the different red blood cell count and white blood cell parameters showed significant changes during gestation. RBC, PCV and Hb increased while total WBC and segmented neutrophils increased after the second gestation period in the second period. The numbers of total leucocytes and segmented neutrophils increased after the second period.