National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Study was planned to evaluate effect of high plan of nutrition on feed intake, growth, feed efficiency and cost of feeding in crossbred heifers (50% Holstein Friesian and 50% Kankrej inheritance). Twenty four crossbred heifers divided in two equal groups having similar body weight and age for twelve period of fifteen days. Heifers were fed concentrate, hybrid napier (Coimbture-3) and sorghum hay to meet nutrient requirement in control and 5-10% higher nutrients in treatment group. Average daily intake of dry matter (DM), total digestible nutrients (TDN), crude protein (CP), ether extract (EE), crude fibre (CF), and nitrogen free extract (NFE) was higher (p<0.01) by 0.46, 0.43, 0.23, 0.04, 0.06 and 0.18 kg/day of heifers in high plan of nutrition. The per cent and metabolic body weight basis intake of total digestible nutrients and crude protein was also higher (p<0.01). Feeding of high plan of nutrition resulted in 137.53 g/day higher growth rate and 6.03 cm higher heart girth (p<0.001) whereas body length and wither height were only numerically (p>0.05) improved. Feed conversion efficiency in terms of DM (18.55 vs. 11.39 kg/kg gain) and TDN (10.99 vs. 7.04 kg/kg gain) were improved (P<0.05) in treatment groups, suggesting that the nutrient dense diet, efficiently converted to live weight gain. Cost of feeding (59.50 vs. 83.11 Rs./day) was higher (p<0.001) and cost of weight gain (176.90 vs. 142.21 Rs./kg weight gain) was lower (p<0.05) in high plan group of heifers. In conclusion, feeding high plan of nutrition (6% higher than requirement) results upward manipulation of growth rate with higher nutrients intake, improve feed efficiency and economical (lower) cost of feeding per unit weight gain in crossbred heifers.
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