Utilização de resíduo de tomate na alimentação de cabras em lactação

Abstract

The objective of the present work was to evaluate the effect of the substitution of Tifton hay and soybean meal for the tomato residue (RIT) on the consumption and performance of dairy goats, as well as its effects on milk characteristics and economic analysis. Twelve multiparous Saanen goats were used at 21 days of lactation, which were randomly distributed in two simultaneous 4 x 4 Latin squares (four periods and four treatments), according to the inclusion levels of the dehydrated discard of tomato (0, 20, 40 and 60%) in the diet. The diets were adjusted to meet the recommended requirements for lactating goats with production of 2.0 kg of milk/day and 4% of fat, with a bulky: concentrate ratio of 60:40. The consumption and the digestibility of the nutrients of the diet, production and the physical-chemical composition of the milk and economic analysis were evaluated. There were significant differences (P<0.05) between treatments for total and corrected milk production at 3.5% fat, milk lactose, fat (g/day), protein (g/day), non-fat solids (g/day) and total solids (g/day). Based on the results obtained in this study, industrial tomato residue improves milk production and can replace up to 40% of tifton hay and soybean meal in lactating goat diets in order to make the chain more sustainable and profitable .