Effect of housing systems on the reproductive performance of sows
2001
Ramesh, V. (Madras Veterinary College, Chennai (India). Department of Livstock Production and Management) | Saseendran, P.C. | Thomos, C.K. (Kerala Agricultural University, Mannuthy (India))
An experiment was conducted to find out the effect of three types of housing systems namely, conventional house with wallowing tank (Control T1), conventional house with sprinklers (T2) and range system (T3) on the reproductive performance of sows. Eighteen sows were reared under each system A significantly lower (P.04) air temperature was observed in sprinkler system (33.0øC) and range (34.35øC). There was no significant difference in relative humidity between the groups. The weight of sows at the time of breeding, one week after farrowing and at weaning were significantly lower (P0.05) in treatment group T2 ((95.55ñ2.38 kg, 116.58ñ4.5 kg and 110.27ñ4.43 kg respectively) when compared to T3 (111.58ñ7.48 kg, 138.97ñ8.32 kg and 129.54ñ8.22 kg respectively) and T1 (114.44ñ4.56 kg 141.14ñ6.67kg and 137.36ñ6.4 kg). Significantly higher (P0.01) percentage of oestrus occurrence, breeding success and intensity of oestrus were observed in T2 and T3 groups than T1 group. The gestation length and postweaning oestrus period were similar. The litter size at birth and weaning in T3 (9.38ñ0.33 and 6.92ñ0.05) and T2 (9.11ñ0.31 and 6.44ñ0.34) sows were significantly (P0.01) higher than T1 (7.09ñ0.68 and 4.63ñ0.70 respectively). Between T2 and T3 there was no significant difference. The litter weight at birth and weaning 14.35ñ0.52 kg and 63.84ñ4.04kg), respectively, in T3 group of sows were found to be significantly (P0.01) higher than T1. In the present study the reproductive performance of pigs maintained under sprinkler under conventional system.
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