HF crossbred cattle

Post influence of operation flood made India a leading global milk producer at the expense of decline in indigenous cattle population replaced by high milk producing exotic crossbred cattle. Recent times exotic crossbreds often suffer of mammary gland infection in compared to indigenous population results in economic loses and increased cost of production.

5p kethamoi7 26-08-2020 15 2   Download

The aim of this study was to identify the Complex Vertebral Malformation (CVM) in repeat breeder and anoestrous animals in Maharashtra state region. Total 102 animals of HF crossbred, Dangi, Gaolao and Non- descript were screened from field and cattle dairy farm. CVM is a hereditary recessive disorder in Holstein cattle which have a significant economic impact on dairy cattle breeding worldwide. Fifty repeat breeder and fifty-two anoestrous animals blood DNA were extracted by traditional method. Genotyping was performed by using PCR-RFLP analysis with the help of PstI restriction enzyme.

4p cothumenhmong5 17-05-2020 12 1   Download

Bovine Leukocyte Adhesion Deficiency (BLAD), Bovine Citrullinaemia (BC), and Complex Vertebral Malformation (CVM) are the common autosomal recessive disorders in cattle affecting dairy industry. The present study was designed to standardize allelespecific PCR based genotyping method for examining the occurrence of these disorders in Indian cattle population. A total of 327 indigenous (Bos indicus), exotic (HF) cattle breeds and HF crossbreds (Bos taurus × Bos indicus) from various parts of India were screened.

9p nguathienthan2 19-12-2019 31 0   Download

The major objectives of the present study were to estimate the incidence of hoof disorders and to identify the various risk factors associated with the hoof disorders in crossbred dairy cattle maintained under field conditions in the state of Karnataka, India. A total of 204 crossbred dairy cattle were investigated for hoof disorders. The overall incidence of hoof disorders was found to be 30.4%. The Holstein Friesian crossbred dairy cows (36.2%) were more vulnerable to hoof disorders than Jersey crossbred dairy cows (20.8%).

9p kethamoi2 14-12-2019 20 0   Download

The study was undertaken to develop linear regression equations for prediction of body weights of HF crossbred cattle based on body measurements. The study was carried out on 506 HF crossbred cattle of Livestock Research Station, AAU, Anand; Sarsa Heifer Farm – Amul Dairy, Anand; Ode Semen Station – Amul Dairy, Anand. All the data were grouped age wise. Females were grouped into 0-6 M, 6-12 M, 1-2 Y, 2-4 Y, 4-6 Y and ˃6 Y age groups. Simple and multiple linear regression models were formulated using step wise method using SPSS 21.0 software.

15p kequaidan2 13-12-2019 12 1   Download