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The present study was carried out to assess the effect of different farming systems on productive performance, body condition score and carcass characteristics of Deccani lambs. Thirty-six weaned lambs having 3 months of age were divided into three groups with twelve lambs in each group in under intensive (T1), semi-intensive (T2) and extensive (T3) farming systems. The comparative mean dry matter intake (kg/day) and (kg/100kg BW) was significantly (p less than 0.05) higher in T1 group when compared to other groups. T2 group had significantly (p less than 0.05) higher DM intake (kg/day) than T3 group. The mean values of Average daily gains in Deccani lambs were significantly (p less than 0.05) higher in T1 group compared to T2 and T3 groups. The feed efficiency was significantly (p less than 0.05) higher in T1 compared to T2, T3 groups. Statistically significant difference was found in BCS at six months of age (p less than 0.05) between T1 and T3 groups. BCS at 9, 12 months and overall BCS, there was a significant (p less than 0.05) difference between T1 and T3 groups. T1 group had higher pre-slaughter weight, hot carcass weight, meat %, fat% and meat: bone ratio thanT2 and T3. The dressing yields were comparable. The weights of other offals (heart, kidney, spleen, testicles, blood, head and lung and trachea) were comparable. The findings of this study indicated that the intensive and semi-intensive system of rearing could be useful for mutton production. In extensive system, which is predominant in India should change its facet by enriching the grazing land resources as well by the supplementation of required plane of nutrition during growth and special life stages viz., gestation, puberty, post lambing and finisher stages for achieving optimum productivity.

The result from revealed that T3 group have significantly (P

Karyological investigation pertaining to 30 crossbred pigs (both sexes) maintained at AICRP, Tirupati was undertaken in order to study the chromosomal profile of the crossbred pigs and their morphometric measurements. The cells had the usual diploid complement of 38 chromosomes (2n = 38) and a fundamental number of 64 as in the exotic pigs with XY complement in males and XX complement in females. The karyotype of crossbred pig was characterized by 5 pairs of submetacentric chromosomes (1-5), next two pairs were sub telocentric (6-7), subsequent 5 pairs were metacentric (8-12) and remaining six pairs were telocentric (13-18). A detailed idiogram was constructed from the results obtained. First chromosome was the longest pair and thirteenth pair was the second largest, while Y-chromosome was the smallest in the karyotype of the pig. The X chromosome was metacentric, but not readily distinguishable from the autosome pair number 9, while Y chromosome was metacentric.