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Subject: Livestock Production and Management × Author: AMBIKA × Start date: 2020 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    PERFORMANCE OF DEONI CATTLE UNDER FIELD CONDITIONS IN BIDAR DISTRICT
    (KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR, 2021-01) AMBIKA; Dr. PRASHANT G. WAGHMARE
    The present study was conducted on 123 lactating Deoni cows in 13 villages of Bidar district. A baseline survey was carried out to identify Deoni animals being reared by farmers in the breeding tract of Deoni cattle in the state of Karnataka. Season of calving was recorded as summer (March to June), rainy (July to October) and winter (November to February). Cows were divided based on age group, parity and season of calving to study the effect of each on lactation performance and milk composition. A milk sample of 50 ml was collected from each animal. The sample was analysed for the milk composition and to conduct California Mastitis Test (CMT), Mastrip test, Electrical Conductivity test (EC) and Somatic Cell Count. On analysis it was found that season had significant effect on Lactation Milk Yield (LMY), Lactation Length (LL), Peak Yield (PY), fat, protein, lactose, and salt. Age group had significant effect on PY, fat, SNF, lactose, salt. Parity had significant effect on LL, PY, SNF, protein lactose, salt. The overall mean values were estimated to be LMY 966.08 ± 35.915 kg, LL 259.15 ± 4.883 days, PY 5.69 ± 0.176 kg, fat 4.492 ± 0.0233%, SNF 8.181 ± 0.0117%, protein 3.156 ± 0.0073%, lactose 4.410 ± 0.0112% and salt 0.6374 ± 0.00176%. The overall incidence of SCM was found to be 21.60 per cent. Mastrip test was found to be a rapid and efficient technique to detect SCM in Deoni cattle under field conditions