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饲草喂养与谷物喂养对扬州鹅生长性能和肉质的影响。

Effects of forage feeding versus grain feeding on the growth performance and meat quality of Yangzhou geese.

作者信息

Song Y, Li Y, Zheng S, Dai W, Shen X, Zhang Y, Zhao W, Chang G, Xu Q, Chen G

机构信息

a Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province , Yangzhou University , Yangzhou , China.

b Waterfowl Institute of Zhenjiang City , Dantu , China.

出版信息

Br Poult Sci. 2017 Aug;58(4):397-401. doi: 10.1080/00071668.2017.1307942. Epub 2017 Apr 18.

Abstract
  1. Highly palatable and nutritious meat products can be produced through dietary interventions. Previous studies have shown that forage feeding has a significant impact on the growth performance and nutrition of cattle in various regions, but whether the same effects can be induced in geese remains unclear. 2. Three hundred and sixty Yangzhou goslings were divided according to body weight at 29 d old, assigned to one of 4 treatments and raised in separate pens. The treatments applied were (A) grazing, (B) grazing, grain supplemental diet (64 to 70 d), (C) grazing, grain supplemental diet and (D) confined. 3. Eviscerated carcass yield was lower in the grazing treatment. Protein content and muscle collagen in both the breast and thigh muscles were significantly higher in the grazing treatment than the confined, while fat content exhibited the opposite tendency. Those fed on grass and supplementary grain had a higher Mg and Cu content in breast muscle. 4. Geese will grow to their full potential when they are allowed to consume grass from pasture supplemented with grain, protein, collagen, Mg and Cu content was greater to a degree, which suggests this feeding regime is an ideal model for goose production.
摘要
  1. 通过饮食干预可以生产出美味且营养丰富的肉类产品。先前的研究表明,牧草喂养对不同地区牛的生长性能和营养状况有显著影响,但在鹅身上是否能产生同样的效果仍不清楚。2. 将360只29日龄的扬州雏鹅按体重分组,分配到4种处理方式之一,并分别饲养在不同的围栏中。采用的处理方式为:(A)放牧,(B)放牧、谷物补充日粮(64至70日龄),(C)放牧、谷物补充日粮,以及(D)圈养。3. 放牧处理的去内脏胴体产量较低。放牧处理的胸肌和大腿肌肉中的蛋白质含量和肌肉胶原蛋白均显著高于圈养处理,而脂肪含量则呈现相反的趋势。以草和补充谷物为食的鹅胸肌中的镁和铜含量较高。4. 当鹅能够食用牧场的草并补充谷物时,它们将充分发挥生长潜力,其蛋白质、胶原蛋白、镁和铜含量在一定程度上更高,这表明这种饲养方式是鹅生产的理想模式。

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