Tanniferous plant supplementation percentage in young goats concentrates diet on perfermance and parasite control /Percentual de suplementacao de fonte taninifera na racao concentrada de caprinos jovens sobre o desempenho e carga parasitaria

The aim of this study was to evaluate the pink pepper supplementation (PPS) in young goats concentrate diet on performance parameters. Twenty five female Saanen goats were divided into five groups having five goats in each treatment. In a completely randomized design were given 0%, 15%, 30%, 45% and 60% of pink pepper supplementation in the diet. The increase levels of pink pepper supplementation resulted in a quadratic effect on voluntary intake of dry matter, metabolic weight and daily weight gain (P ≤ 0.05). For voluntary intake of dry matter, the quadratic effect (P ≤ 0.05) revealed minimum point of 67.1 (g [kg.sup.0.75] [dia.sup.-1]) in the percentage of 59.8% PPS; for metabolic weight a peak of 8. 5[kg.sup.0.75] in the percentage of 15.5% PPS, and the daily weight gain a peak of 0.107g [day.sup.-1] in the percentage of 19.6% PPS in the diet. Regarding the effect of PPS on the parasite load, there was a quadratic effect of dietary supplementation of the PPS on egg count per gram offeces (P ≤ 0.05), with minimum point estimated at 1.0 [log.sub.10] at 35.8% of PPS in the diet, representing the limit of PPS response. There was a linear decrease on oocyst count per gram feces with increased levels of PPS 's diet. It was concluded that the supplementation up to 20-30% of pink pepper was able to control of gastrointestinal parasites with maximum animal performance. Key words: tannin, Schinus terebinthifolius Raddi, performance, small ruminant. O presente estudo buscou determinar o percentual de adicao de torta de pimenta rosa (TPR) na dieta de caprinos jovens sobre o desempenho e carga parasitaria. Foram utilizados 25 caprinos jovens da raca Saanen, distribuidos em um delineamento inteiramente casualizado em grupos de cinco tratamentos e cinco repeticoes, constituidos por grupos: nao suplementados com TPR; suplementados com 15% TPR; suplementados com 30% TPR; suplementado com 45% TPR; e suplementado com 60% TPR. O aumento dos niveis de suplementacao de pimenta rosa resultou em efeito quadratico sobre o consumo voluntario de materia seca (CVMS), peso metabolico e ganho em peso diario (P ≤ 0,05). Para o CVMS, o comportamento quadratico (P ≤ 0,05) revelou ponto de minimo de 67,1g [kg.sup.0,75] [dia.sup.-1] no percentual de 59,8% de TPR; para o peso metabolico, um ponto maximo de 8,5 [kg.sup.0,75] no percentual de 15,5% de TPR; e, para o ganho em peso diario, um ponto maximo de 0,107g [dia.sup.-1] no percentual de 19,6% de TPR na dieta. Em relacao a influencia