Nicory Isis Miranda Carvalho, de Carvalho Gleidson Giordano Pinto, Ribeiro Ossival Lolato, Silva Robério Rodrigues, Tosto Manuela Silva Libanio, Costa-Lopes Lívia Santos, Souza Fábio Nicory Costa, de Oliveira Nascimento Camila
Federal University of Bahia, Avenida Ademar de Barros, 500, Ondina, 40170-110, Salvador, BA, Brazil,
Trop Anim Health Prod. 2015 Jun;47(5):939-44. doi: 10.1007/s11250-015-0812-9. Epub 2015 Apr 26.
The objective of this study was to evaluate the substitution of soybean meal for castor seed meal (CSM) in diets for feedlot lambs and the effects of these diets on their ingestive behavior. Fifty male Santa Inês lambs were used. The diets were composed of Tifton 85 hay and a concentrate containing detoxified CSM substituting 0, 25, 50, 75, or 100 % of the soybean meal. There was no effect (P > 0.05) of the CSM levels on the feeding, rumination, idle times, chews and time spent chewing per bolus, total chewing time, number of boli chewed, and number of chews per day. The dry matter (DM) intake decreased linearly (P < 0.05), but did not affect the neutral detergent fiber (NDF) intake. The feeding and rumination efficiencies had a quadratic response (P < 0.05). The experimental diets did not affect (P > 0.05) the numbers of feeding, rumination, and idle periods, but had a quadratic effect (P < 0.05) on the time per feeding activity and on the chewing periods. Substitution of soybean meal for detoxified CSM reduces the DM intake but does not change the ingestive behavior.
本研究的目的是评估在育肥羔羊日粮中用豆粕替代蓖麻籽粕（CSM）的效果以及这些日粮对其采食行为的影响。使用了50只雄性圣伊内斯羔羊。日粮由蒂夫顿85干草和一种浓缩料组成，该浓缩料含有替代0%、25%、50%、75%或100%豆粕的脱毒CSM。CSM水平对采食、反刍、空闲时间、咀嚼次数、每团饲料咀嚼时间、总咀嚼时间、每天咀嚼的食团数和每天咀嚼次数均无影响（P＞0.05）。干物质（DM）摄入量呈线性下降（P＜0.05），但不影响中性洗涤纤维（NDF）摄入量。采食和反刍效率呈二次反应（P＜0.05）。试验日粮对采食、反刍和空闲期的次数没有影响（P＞0.05），但对每次采食活动的时间和咀嚼期有二次效应（P＜0.05）。用豆粕替代脱毒CSM会降低DM摄入量，但不会改变采食行为。
