Effect of non-genetic factors on performance in deccani sheep at organized farm
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Date
2009-05-30
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Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani
Abstract
The research ~urvey entitled "Effect • of non-genetic factors on •
performance in Deccani sheep at organized farm" at "Punyashlok Ahilyadevi
Sheep and Goat Develop~ent Project, Mukhed" was carried out during year
2008-2009. To~al data of 444 Deccani sheeps over• a period of 5 years (2004 to
2008) were included in the study. • The data accumulated on birth weight, 3
months, 6 m:onths, 12 months and adult weight were taken from individuals
records, lambing records and breeding records. In order to accomplish the
statistical analysis of data the Least Square Technique as outlined by Harv~y
(1976) was employed.
The result obtained from this investigation found that average body
weight at birth, 3 months, 6 months, 12 months and adult weight as 1.91 ±
0.01, 11.48 + 0.11, 16.65 ± 0.06, 19.48 ± 0.05 and 25.45 ± 0.17 kg,
respectively~ Season effect were found siginificantaly affected on body weight
at birth and adult age, where as non significant at 3, 6 and 12 months body
weights. Period . influences significantly on adult body weight while non
significant on 3, 6 and 12 months body weights. The sex effects in general were
found non-significantly affected the body weights of Deccani sheep. The
average sex ratio for Deccani sheep was 49.55:50.45. The colour pattern for
Deccani sheep was recorded as black (55.18 %), black and white (24.32 %) and
white (20.50 %).
The geo-ecological situation of tract and management practices
followed on the project play its role. The size of the population study indicated
parameters to be considerd for improvement on development project scale.
Each of this fixed effects non-signifies of their role and indicates that finding
out Decca..ni germplasm on the farm needs critical care to flush out meaningful
management and selection such that maximum weight gains during each season
and period, could be gained. It could be further enhance by induction of the
immigrants from outside within the breeding tract of Deccani sheep and
pressuring the population through selection criteria. Larger population size will
be essential aspect of future studies
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