Feeding preference of lambs for maize, bean and broad bean stubble treated with silage effluent, urea-molasses or phosphoric acid
Objective: To determine the acceptability of maize stubble treated with urea-molasses (MaUM), silage effluent with phosphoric acid (MaEflAcP) and the control (MaTes); in bean, stubble trated with silage effluent (FrEfl), effluent silage with urea-molasses (FrEflUM) and the control (FrTes); in broad bean, stubble treated with silage effluent with urea-molasses (HaEflUM), urea-molasses with phosphoric acid (HaUMAcP) and the control (HaTes). Design/Methodology/Approach: A feeding preference test was conducted with six Dorper/Katahdin lambs weighing 21 kg. In the morning they were fed with a mixture of the three treatments of each stubble (70% of the dry matter (DM) requirement/40 min); later, each treatment was offered in independent feeders (10% of the DM requirement/20 min)/7 d. Intake was measured in g (offer minus rejection). Data was analyzed with the ordinal logistic regression model after classifying the ordinal qualitative variables of consumption frequency 1=low, 2=medium and 3=high as variables, the results were expressed as the estimated proportion of incidence of frequency 1, 2 or 3. Results: The estimated proportion of high consumption frequency was higher for MaUM, HaUMAcP and FrEflUM with 95.24, 73.44 and 43.49%, respectively. The estimated proportion of low consumption frequency was observed in HaTes, MaTes and FrTes 95.12, 88.11 and 48.77% respectively. Study limitations/Implications: The diets with different quality and flavor did not allow to meet the assumptions of normality and homocedasticity, however, the results provide valuable information to improve dry matter intake and animal production. Finding/Conclusions: UM, alone or in combination, in any type of stubble, promoted consumption preference.
| Main Authors: | , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Colegio de Postgraduados
2024
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| Online Access: | https://revista-agroproductividad.org/index.php/agroproductividad/article/view/2589 |
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