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20171
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Subject: Animal Nutrition × Author: ADITHYA KUMAR, V × Start date: 2000 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    PERFORMANCE OF LACTATING MURRAH BUFFALOES FED DIETS CONTAINING MAIZE SILAGE PREPARED USING VARIOUS ADDITIVES
    (SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI – 517 502. (A.P) INDIA, 2017-05) ADITHYA KUMAR, V; RAGHAVA RAO, E (Major); Raja Kishore, K; VENKATA SESHAIAH, Ch
    ABSTRACT: A 120 day lactation trial conducted using 16 lactating graded Murrah buffaloes (avg b. wt. 601.49 ± 10.89) in mid lactation (60 to 90 days 2-3 lactations) by randomly allotting them into four groups of 4 animals each (control and treatments) to study the effect of feeding additive added maize silage (curd, whey and Cellulomonas uda) replacing maize silage without additives on milk yield, milk composition and on nutrient digestibility. Further in vitro studies were conducted to evaluate the digestibility of maize silage treated with additives (curd, whey and Cellulomonas uda). Chemical composition (% DM) indicated CP content was higher in maize silage with additives, with curd as being the highest among. The NDF and ADF contents were also lower in additive added maize silage, with Cellulomonas uda being the lowest compared to the traditional maize silage. The in vitro digestibilities (%) evaluated using strained rumen liquor from buffalo bulls of maize silage without additives and maize silage with curd, whey and Cellulomonas uda as additives were 49.34, 49.27, 50.72 and 50.73 for DM; 67.18, 66.52, 66.29 and 66.83 for CP; 43.68, 44.26, 43.86 and 43.47 for NDF and 44.68, 45.54, 43.62 and 44.72 for ADF, respectively. However, significant differences were not observed in comparison to digestibilities of traditional maize silages (P>0.05). The daily average milk yield, butter fat yield, 6% FCM, total solids and protein increased (P>0.05) marginally in treatment groups, with curd and whey groups being highest. The feed efficiency was higher marginally and cost of feed per kg 6% FCM yield was lower for treatment groups, with curd being most economical. The digestibility of DM (P<0.05), OM (P>0.05), CP (P>0.05), EE (P>0.05), NFE (P<0.05), NDF (P<0.05), ADF (P<0.05), hemi-cellulose (P<0.05) and cellulose (P<0.05) improved in treatment diets compared to control group. Based on the present study, it is concluded that replacement of conventional maize fodder with additive treated (Curd, Whey and Cellulomonas uda) maize silage resulted in improved digestibility of gross nutrients and fibre fractions but had no effect (P>0.05) on milk yield and composition of lactating graded Murrah buffaloes.