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20031
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Subject: Animal Nutrition × Author: ENGTIPI, HONGBARI × End date: 2009 ×
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    ThesisItemOpen Access
    PERFORMANCE OF GROWING AND FINISHING CROSSBRED PIGS FED RATIONS CONTAINING VARYING LEVELS OF RED GRAM (Cajanus cajan) CHUNI
    (SRI VENKATESWARA VETERINARY UNIVERSITY , TIRUPATI – 517 502 (A.P) INDIA, 2003-08) ENGTIPI, HONGBARI; PARTHASARATHY, M (Major); RAMA PRASAD, J; SRINIVASA RAO, D; SARJAN RAO, K
    ABSTRACT In a completely randomized design, an experiment was conducted to study the effect of feeding rations with red gram (Cajanus cajan) chuni at 0 (GR-1 / FR-1), 10 (GR-2/ FR-2), 15 (GR-3 / FR-3) and 20% (GR-4 / FR-4) on the growth performance, nutrient utilization and carcass characteristics of crossbred pigs during growing and finisher phases. The rations were made isonitrogenous and isocaloric by adjusting the levels of maize and soybean meal. Twenty four crossbred male pigs (15 ± 0.5 kg) from 75 per cent (LWY x Indigenous) inheritance were divided into 4 equal groups and allotted to one of the grower rations at random and fed ad libitum till the pigs attained 35 kg body weight. The results of feeding cum metabolism trials during growth period revealed no significant difference in the ADG and feed consumption. Significant difference was observed in EFU (P<0.05) and cost of ration/kg gain (P<0.05). The digestibility of DM (P<0.05), OM (P<0.01) CP (P<0.05) CF, NFE (P<0.01) and total carbohydrates (P<0.01) decrease significantly with the increased in the level of red gram chuni in the grower rations. Nitrogen excretion (g/d) through faeces was significantly (P<0.05) different among the rations. Nitrogen retention expressed as per cent intake or per cent absorbed was non-significantly different among the grower rations. At 35 kg body weight all the pigs were shifted to their corresponding finisher rations. The results of the feeding-cum-metabolism trials during finisher phase indicated no significant differences in the ADG, EFU, cost of ration /kg gain. The apparent digestibility of DM (P<0.05), OM (P<0.01) and Total carbohydrates (P<0.01) increased linearly. The nitrogen intake g/d (P<0.05), N excretion (g/d) through urine (P<0.05) and the total N excretion (g/d) significantly decreased (P<0.05) as the level of red gram chuni increased. However, no significant difference was observed in N retention. Four pigs from each group were slaughtered at a predetermined weight of about 70 kg body weight after 24 hr fasting to evaluate carcass characteristics. There were no significant differences in the carcass characteristics viz., dressing percentage, carcass length (cm), back fat thickness (cm), loin eye area (cm2), per cent yield of ham, loin and shoulder; yield of meat and the ratio of meat : bone: fat. The cost of ration/ kg gain and pork produced was Rs.23.26, 23.46, 30.6 and 30.98 and 31.57, 30.47, 32.78 and 34.79, respectively for rations TR-1, TR-2, TR-3; and TR-4, and the differences were non-significant. From the present study it is concluded that red gram chuni can be safely included at10 per cent level in pig rations and thereby compensate for the shortage of cereals and cereal by-products for animal feeding and to utilize locally available feed resources more efficiently