【摘要】 随机选择刚出生的本地鹅雏和杂交鹅雏各130只,采取放牧加补饲的方法育肥至63日龄。结果本地鹅平均体重328750g,胴体重285410g,半净膛率8018%,全净膛率7376%,料肉比为331∶1;杂交鹅平均体重348269g,胴体重296192g,半净膛率7863%,全净膛率7264%,料肉比为304∶1。说明该方法育肥效果理想,且杂交鹅优于本地鹅。结合经济效益分析证明,在北方地区利用本地品种资源,适当进行杂交,抓住其生长发育的有利时机,采取放牧加补饲的方法发展肉用仔鹅生产是切实可行的。更多还原

【Abstract】 The 130 Jilin goslings and the 130 crossbred goslings were tested after 63 days of fatting with grazing and feeding .The result shows that both gosling can be fatten in 63 days ,and the crossbreeds’liveweight (3482.69g)is higher than the Jilin’s (3287.50g),so are the carcass weight ( 2961.92 g to 2854.10g),semi_dressing percentage (80.18% to 78.63%),dressing percentage ( 73.76 % to 72.64% ),but the feed/gain is contrary (3.04∶1 to 3.31∶1).The economic benefit analysis shows that the crossbred gosling feeding is practigal.更多还原