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Energy metabolism of the granadina breed goat kid use of goat milk and a milk replacer



Energy metabolism of the granadina breed goat kid use of goat milk and a milk replacer



Journal of Animal Physiology & Animal Nutrition 59(1): 1-9



The energy metabolism of the goat milk and milk replacer fed goat kid was determined by means of a feeding experiment on different feeding levels and following the slaughter method. The intake of metabolizable energy (ME), total energy retention (ER), energy retained as protein (ERp) and energy retained as fat (ERf) were determined. The effect of kind of milk and intake level on ER and on ERp and ERf was studied. The intake level was the most influential factor on the quantity of ER, ERp and ERf, which determined these retentions in a direct way. Under goat milk feeding ER and ERf were greater only at the highest intake level. The ME requirements for maintenance and for growth, the ME efficiencies for growth, as well as the ME partial efficiencies and costs of protein and fat deposition were estimated by means of regression studies. These values were for goat milk fed kids and milk replacer fed ones: 444 and 427 kJ/kg0.75 .cntdot. day; 16.12 and 17.91 kJ/g empty body weight gain; 0.73 and 0.58; 0.91 and 0.78; 0.65 and 0.57; 26.2 and 30.3 kJ/g and 61.2 and 69.8 kJ/g, respectively. For the first time these results are obtained for the goat species and Granadina breed. It is concluded about the necessity to study the particular use of protein and fat ME in these animals.

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Accession: 005361872

Download citation: RISBibTeXText

DOI: 10.1111/j.1439-0396.1988.tb00039.x



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