硫酸特布他林—β肾上腺素能兴奋剂对肉仔鸡生长和脂肪沉积的影响

在艾维茵商品代肉仔鸡日粮中（８～５２日龄）添加１和５ｍｇ／ｋｇ硫酸特布他林（ＴｃｒｂｕｔａｌｉｎｃＳｕｌｐｈ，简称特布他林）。结果：①５２日龄鸡的平均体重和饲料效率处理组均优于对照组，而按处理比较鸡的存活率较对照组高了４．３个百分点（９６．２％对９１．９％）（Ｐ＜０．０５）；②试验组公鸡，每公斤净体重（活重减去全消化道内容物重）含腹脂、皮下脂和肠脂的总量（以下称合计量）由４９．４６ｇ降低到４３．７５ｇ，减少了５．７１ｇ（Ｐ＜０．０５），其中皮下脂肪减少６．１３ｇ。与此相反，试验组母鸡脂肪合计量较对照组增加２１．７８ｍｇ／ｋｇ净体重。③日粮添加特布他林致母鸡内脏器官重（心、肝、脾、肺、肾和胰脏）增加了９．１１ｇ／ｋｇ净体重，对公鸡内脏影响不明显。

EFFECT OF DIETARY ADDITION OF THE TERBUTALINE SULPH(β-ADRENERGIC AGONISTS)ON THE PERFORMANCE AND FAT DEPOSITION IN BROILER CHICKS

Thc experimonts werc performed using AVIAN broiler to examine effects of dietary addition of 1 mg/lg(8～21d.)and 5 mg/kg(22～52 d.)Terbutalinc Sulph(TS) on the performance and deposition of abdominal,subcutaneous and intestinal fat in broilers. The results indieated that 1.The body weight and feed effleieey of thebirds in the treatment were better than control,the mortality of 52days old birds of TS group was lower 4.3%(P<0.05);2.At the male of test group sum of abdominal,subcutaneous and intestinal fat was deereased by 5. 71%;3.The influence of supplementation of TS on total weight、viscera organs were not signifieant in broilers.