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...

Aim: To compare the amylase activity in the cervical mucus and serum during estrus in normal and repeat breeder cattle and find out importance in fertility. Materials and methods: Twenty cyclic crossbred cattle were divided into two groups: normal (n =10) and repeat breeder (n =10). Animals exhibiting spontaneous estrus, were artificially inseminated (AI) twice, as per AM-PM schedule along with...

The influence of corn silage feeding level was examined on eighty-three Charolais crossbred steers (389+30 kg BW). Each steer was randomly assigned to one of four diets which contained either 0, 15, 50 or 85 percent corn silage (CS) dry matter. Each ration was balanced to a 13.6 percent crude protein level. Mineral, vitamin and ionophore fortifications (monensin @ 33 ppm) were similar for each ...

The scientific article presents the results of a experiment conducted to study quality indicators beef obtained from interbreeding cattle meat, dairy and combined breeds in conditions Volgograd agricultural enterprise JSC "Berdievsky Elevator". resulting crossbred bulls at age 9 months were divided into 4 groups 10 heads each according principle pairs analogues: I experimental group ½ crossbree...

One approach to reducing losses from BRDC is the implementation of selection of cattle that are less likely to be affected by disease by the use of dairy predicted transmitting ability (PTA) or beef expected progeny differences (EPD) for susceptibility to BRDC. The PTAs or EPDs would be based on genotypes associated with animals less susceptible to disease and incorporated into commercial genot...