A STUDY ON GROWTH PERFORMANCE OF GOATS UNDER DIFFERENT SYSTEMS OF REARING
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Date
2018-11
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR-585 401
Abstract
The growth performance of goats under different systems of rearing was studied
for 13 weeks on thirty weaned local kids of 3-4 months of age and comparable body
weights. Kids were randomly distributed into three groups with 10 animals in each group.
Animals of T1 (Intensive system) group were fed with concentrate mixture and weighed
quantity of ground nut hay, sesbania and ragi straw (ad lib). The animals in T2 (Semi
intensive system) group were allowed for grazing for 6hours and in the evening provided
with concentrate and roughages at the level of 50% of the requirements of T1 group. The
animals in T3 (Extensive System) group were allowed to graze throughout the day
without any supplementary feeding. During the experimental period, the body weights
were recorded every week. Body measurements were recorded fortnightly. The feacal
samples were collected at every four-week interval. The average mean body weight (kg)
was found to increase from 11.05±0.18to 18.64±0.32 in T1 group, 11.05±0.23 to
17.19±0.39 in T2 group and11.14±0.18to 15.57±0.24in T3 group. Average Daily Gain
(ADG) (g/d) during the study was 83.45±4.95in T1, 67.44±4.95in T2 and 48.65±4.25in
T3. The average parasitic load at the end of experimental trial was 1320±35.12,
1985±75.3 and 2235±91.91 eggs per gram in T1, T2 and T3, respectively. Significant
effect (P<0.01) of treatment was observed on final body weight, ADG, body
measurements and parasitic load between T1 vs T2, T1 vs T3 but no significant
difference was observed for parasitic load and body measurements between T2 vs T3. It
is concluded that animals under T1- Intensive rearing systems had significantly higher
(P<0.01) live weight gains and body measurements compared to other groups during
various phase of study.