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Dietary Levels of Energy and Protein for Optimal Growth of Crossbred Anglo-Nubian Goats in Samoa

Aregheore, Eroarome M. and Kumar, Ashish and Manueli, P. (2003) Dietary Levels of Energy and Protein for Optimal Growth of Crossbred Anglo-Nubian Goats in Samoa. International Journal of Agriculture and Biology, 5 (4). pp. 428-431. ISSN 1560-8530

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Eighteen crossbred Anglo-Nubian does, 20-24 months of age; 20.9 ± 0.12 kg, BW were used to investigate dietary levels of energy and protein for growth in the tropical environment of Samoa. The goats were divided on the basis of weight, to three groups in a completely randomized design experiment and offered experimental diets at three protein and energy levels: 16.6, 13.4 and 12.4% CP and 11.3, 13.4 and 14.4 MJ GE/kg for eight weeks. The diets were designated as high protein low energy (HPLE), medium protein medium energy (MPME) and low protein high energy (LPHE). Voluntary dry matter (DM) intake (concentrate and forage) was 1217, 1158 and 1096 g/kg0.75/d/doe for the HPLE, MPME and LPHE diets, respectively. Voluntary intake of the concentrate portion and total DM intake decreased with increase in the levels of energy but not with levels of protein. ADG were 95, 130 and 89 g/doe/day for HPLE, MPME and LPHE diets, respectively. Organic matter (OM) digestibility by goats fed HPLE, MPME and LPHE diets were 67.8±0.04, 69.2±0.02 and 63.2±0.08%. Crude protein digestibility was significantly higher (P<0.05) with goats fed in HPLE and MPME diets, while digestibility of energy was higher (P<0.05) in LPHE and MPME, respectively. CF digestibility was significantly lower in the goats on HPLE diet. Daily CP and ME intakes of goats were 0.202, 0.161 and 0.132 (g protein N/kg0.75/d) and 6.2, 7.9 and 9.3 (KJ/kg0.75/day) for HPLE, MPME and LPHE diets, respectively. Based on data from this study the estimated protein and energy requirements for optimum growth of crossbred Anglo-Nubian goats is 13.4% CP and 13.4 MJ GE/kg BW.

Item Type: Journal Article
Subjects: S Agriculture > S Agriculture (General)
Divisions: School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS)
Depositing User: Ms Shalni Sanjana
Date Deposited: 06 Jun 2022 03:54
Last Modified: 06 Jun 2022 03:54

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