FACTORS AFFECTING THE LACTATION PERFORMANCE OF DEONI CATTLE
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Date
2019-08
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
Abstract
The objective of this study was to document the lactation performance of Deoni
cattle at the Livestock Research and Information Centre (Deoni), Hallikhed, a livestock
research centre of Karnataka Veterinary Animal and Fisheries Sciences University, Bidar.
The present study was conducted on 78 Deoni cows. This study was undertaken based on
lactation performance data of Deoni cattle for the period July 2015 to June 2018. Period
of calving was recorded as Period 1 (July 2015- June 2016), Period 2 (July 2016- June
2017) and Period 3 (July 2017- June 2018) Season of calving was recorded as summer
(March to June), rainy (July to October) and winter (November to February). Cows were
grouped based on age, parity, period of calving and season of calving to study the effect
of each on lactation performance and milk composition. Results indicated that age group
had significant effect on Lactation Milk Yield (LMY) and milk fat. Parity had significant
effect on LMY, PY and fat. Season of calving had significant effect on LL. Period of
calving had no effect on any of the traits. The overall mean values were estimated to be
LMY 1297.99 ± 51.41 kg, PY 6.19 ± 0.147 kg, LL 291.68± 6.786 days, Persistency
207.68 ± 5.105, fat 4.80 ± 0.014%, SNF 8.48 ± 0.008%, protein 3.10 ± 0.005%, lactose
4.68 ± 0.005 % and salt 0.650 ± 0.001%. It was concluded that Deoni cattle are highly
suited as a multi-purpose breed for Bidar district and there is potential for improvement
in the performance of the breed by means of selective breeding techniques.