Formulating rations with cassava meal to promote high live weight gain in crossbred Limousin bulls
| Autor: | K. J. Harper, S. Retnaningrum, Kusmartono, Mashudi, Dennis P. Poppi |
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| Rok vydání: | 2020 |
| Předmět: |
Male
High energy Palm kernel meal Manihot Rumen 040301 veterinary sciences Live weight Randomized block design Biology Weight Gain Crossbreed Feed conversion ratio SF1-1100 0403 veterinary science Animal science Animals Stover Meals Copra meal Meal digestive oral and skin physiology 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences 040201 dairy & animal science Animal Feed Animal culture Diet Indonesia Intake Animal Science and Zoology Cattle Digestion |
| Zdroj: | Animal, Vol 15, Iss 2, Pp 100125-(2021) |
| ISSN: | 1751-732X |
| Popis: | Formulating rations with high energy and protein feeds such as cassava and locally sourced protein meals is an important strategy to increase live weight gain (LWG) of crossbred bulls in Indonesia. Current systems of production for Indonesian smallholders fatten bulls using cut and carry. Formulating a diet for an optimal combination of available feeds will increase production and potential profitability for smallholders. An experiment was conducted to evaluate the effect of using cassava meal in the diet at levels of 70C, 60C, 50C, 40C and 30C% (with most of the remainder being the protein meals) on the LWG of Limousin × Ongole bulls so as to determine the optimum combination of cassava meal and protein meals for LWG. Thirty bulls were allocated in a completely randomized block design with 6 blocks based on initial live weight (LW) and 5 treatments based on level of cassava meal. The combination of cassava meal (with 2% urea) and protein meals significantly affected LWG with the highest (1.35 kg/day) recorded at 40C (40% cassava meal, 40% protein meals and 20% maize stover). The LWG and nutrient intake increased curvilinearly with decreasing cassava meal and increasing protein meals (P 0.05). Rumen pH ranged from 6.3 to 6.9. It was concluded that a combination of 40% dried cassava meal and 40% protein meals with roughage (20%) maximized intake and LWG and beyond that level of cassava meal inclusion, LWG and intake decreased markedly. |
| Databáze: | OpenAIRE |
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