Effect of bovine somatotropic hormone on the productive performance of Nili-Ravi buffaloes

Abstract

The study was conducted on 21 Nili-Ravi lactating buffaloes with similar milk production and stage of lactation. They were randomly divided into three groups A, B and C with 7 animals in each group. The group A was injected with full dose of bST hormone (250 mg/animal) with trade name of Boostin-250 at an interval of 14 days, while animals in group B were given injection on alternate days with divided dose of 36 mg/animal. The group C was kept as control. The duration of study was 5 months and the animals were kept on green fodder supplemented with concentrate ration @ half of milk production. The concentrate ration had 17.2% CP and 72.0% TDN. The milk production was 8.06 ± 1.49, 7.85 ± 1.08 and 6.81 ± 1.80 liter in respective groups. The milk production increased by 18.35% and 15.27% in group A and B compared with group C (control). However, the increase was statistically non-significant (P>0.05). The difference in Fat, SNF, and TS percent was nonsignificant among the groups. The service period and services per conception were improved in both the treated groups. The body weight in sub-group A, B and C were similar and none of them lost weight over the study period. The difference among hematological and biochemical parameters was also non-significant.

Keywords

• Bovine Somatotropic hormone, Nili-Ravi buffaloes, Milk production, Reproduction.