Suplementação de cordeiros com sal forrageiro de Gliricidia sepium (Jack) Walq

Abstract

The experiment was conducted to determine the best level Gliricidia sepium (Jacq.) Walq forage species in confection the fodder salt gliricidia by the performance of lambs. The parameters evaluated were performance and characteristics of carcass and non-carcass components of lambs. A total of 30 animals of the sheep, male, crossbred Santa Inês, whit approximately 180 days of age, average live weight of 25 kg, confined, distributed on bays of 1m2. The animals were fed with hay tifton-85 (Cynodon spp.), as a basic food, to simulate the condition of grazing, fodder salt and/or mineral and water ad libitum. The experiment was a completely randomized design with five treatments and six replicates, were the treatments were zero (100% NaCl), 93, 95, 97 and 99% inclusion of hay gliricidia (7,5, 3 and 1% NaCl in the formulation of fodder salt, respectively). The experiment lasted 74 days, 14 days for adaptation and 60 days of data collection. The voluntary intake of dry matter and fodder salt were not affected (P>0,05) by inclusion of up to 99% of gliricidia on fodder salt. The average daily gain and feed efficiency were linear reduced (P<0,05). Linear increased (P<0,05) feed conversion. Carcass characteristics and non-carcass components were not affected (P>0,05) by supplementation with fodder salt. The inclusion level of 99% gliricidia in the production of fodder salt gave better performance.