Influence of varying levels of supplemental cassava root meal without or with groundnut cake on performance of growing Laisind cattle |
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Authors: | Nguyen Thanh Trung Jan Berg Vu Chi Cuong Nils Petter Kjos |
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Institution: | 1. Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, P.O. Box 5003 IHA-NMBU, 1430, ?s, Norway 2. Department of Animal Nutrition and Forage, National Institute of Animal Sciences, Thuy Phuong, Tuliem, Hanoi, Vietnam
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Abstract: | The objective of this study was to evaluate the effect of supplementation of varying levels of cassava root meal (CRM, 300 and 1,000 g), without or with 700 g groundnut cake (GNC) on intake and performance of growing Laisind cattle fed with a basal diet of urea-treated rice straw (URTRS). Twenty-four male cattle of crossbred Laisind (50 % Red Sindhi and 50 % local Yellow, both Bos indicus), from 15 to 17 months of age, 165–175 kg body weight, were used. They were assigned to a completely randomized block design in a 2?×?2 factorial arrangement (two CRM levels and two GNC levels). Intake of URTRS (interaction, P?<?0.01) and digestibility of neutral detergent fiber (interaction, P?<?0.05) decreased as CRM level increased on the diets without GNC but was not affected by CRM level on the diets with GNC. The total dry matter intake (interaction, P?<?0.05) and live weight gain (LWG) (interaction, P?<?0.001) increased as CRM level increased on the diets with GNC, but no difference was observed on the diets without GNC. In conclusion, supplementation of 1,000 g CRM should be in combination with 700 g GNC to avoid the negative effects on URTRS intake and digestibility, therefore improving LWG of growing Laisind cattle fed on a URTRS-based diet. |
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