Abstract:
Sixteen Kundhi buffaloes (primaparous) between 3 to 4 years of age, weighing 455 + 33.81 kg were purchased from market and brought to Livestock Experiment Station, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam. They were kept on same plane of nutrition and management as a single group, until breeding. Buffaloes were housed in individual tie
stalls with free access to water. The herd was vaccinated against FMD and HS as per schedule of vaccination and dewormed regularly during the experimental period. Sixteen buffaloes were randomly divided into four groups. Four buffaloes in each group were allocated different rations i.e. a) Scientifically balanced, b) a + rbST, c) Scientifically Balanced + 10% increase in ration (with total 3% increase in crude protein) and d) c + rbST. Data was collected on the proforma starting from 60 days post partum (dpp) and continued for two successive lactations. There was break of treatment between two lactations during dry period until next calving leading to consecutive breeding period i.e; 60 days post partum. Milk yield response to rbST in 1st lactation averaged 0.6 (P<0.05) and 0.8 kg/d (P<0.01) in group-A than group-B and group-C than group-D respectively through experimental period. Within each 14 day treatment period, milk production increased steadily through the middle of each cycle and diminished towards basal production thereafter. This peak and valley pattern of Galactopoietic response was repeatedly observed through out the study and milk production in treated buffaloes never returned to concurrent control levels. Growth hormone concentration in milk was at below sensitivity level of the assay for most buffaloes (1ng/ml). Hameotological parameters were generally not affected by rbST treatment. During different level of concentrates glucose, lipid, protein, cholesterol, and uric acid remained unaffected whereas calcium concentrations in group-C and group-D were increased significantly (P<0.05) and (P<0.01) respectively. Lipid and cholesterol did not change by rbST treatment. Whereas, calcium returned to non-significant level in all groups. Protein decreased significantly (P<0.05) in group-B than group-A, whereas there was no significant difference in group-C and group-D. T3 and T4 were unaffected by rbST treatment in buffaloes. The buffalo should be used as a cheap meat animal because it has high quality meat. Although the 9-11th rib cut appears as an easy and cheap way to predict carcass and whole body composition in buffaloes, further research is needed, since the information provided by this method is of high importance for beef producers and researchers.
Page(s):
202-202
DOI:
DOI not available
Published:
Journal: Abstract Book on International Conference on Food and Applied Sciences (ICFAS-23) 3-5 August 23, Volume: 0, Issue: 0, Year: 2023
Keywords:
buffaloes
,
Nutrition and Management
,
rbST
,
Somatotropin