Comparative nutrient utilization,growth, and rumen enzyme profile of mithun (Bos frontalis) and Tho-tho cattle (Bos indicus) fed on tree-leaves-based ration |
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| Authors: | Das Krushna Chandra Haque Nazrul Baruah K K Rajkhowa C Mondal M |
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| Institution: | (1) National Research Centre on Mithun, Indian Council of Agricultural Research, Jharnapani, Medziphema, Nagaland, 797106, India;(2) National Research Centre on Yak, Dirang, Arunachal Pradesh, India |
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| Abstract: | A study was conducted to compare the nutrient utilization, growth, and rumen enzyme profile of mithun (Bos frontalis) and Tho-tho cattle (Bos indicus) reared in the same feeding and managemental conditions. For the purpose, male mithun (n = 8) and male Tho-tho cattle (n = 8) of 1.5 years age, selected from the farm of National Research Centre on Mithun, Nagaland, India, were fed on mixed-tree-leaves-based
ration as per the requirement of NRC (2001) for cattle for 12 months. Average daily gain (ADG), average dry matter intake (DMI), and feed conversion ratio (FCR) for
all animals were recorded. A metabolic trial was conducted at 6 months of the experiment to assess the digestibility coefficient
of different nutrients and nutritive value of ration. At 12 months of the experiment, rumen liquor was collected from all
animals and analyzed for rumen enzyme profiles, viz., carboxymethylcellulase, xylanase, α-amylase, β-glucosidase, α-glucosidase,
urease, and protease. It was found that ADG (507.8 g vs 392.8 g), DM intake (6.59 vs 5.85 kg/day) and DMI/W0.75 (98.75 g vs 91.00 g/day), crude protein intake (780 vs 700 g/day), and total digestible nutrient intake (3.65 vs 3.32 kg/day)
were higher (p < 0.05) in mithun than cattle. The nitrogen balance was higher and FCR was better (p < 0.05) in mithun compared with cattle. The digestibility coefficient of different nutrients was similar (p > 0.05) between the species. The microbial enzyme profiles of mithun and cattle were not different (p > 0.05). The better growth performance of mithun than cattle as found in the present study clearly indicates that the mithun
has higher genetic potential for growth than Tho-tho cattle of north-eastern hilly region of India. |
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