Bochno R, Murawska D, Brzostowska U
Department of Commodity Science and Animal Improvement, Faculty of Animal Bioengineering, University of Warmia and Mazury, 10-718 Olsztyn, Poland.
Poult Sci. 2006 Nov;85(11):1987-91. doi: 10.1093/ps/85.11.1987.
The experimental materials comprised White Italian geese (128 males and 128 females) reared to 14 wk of age. The birds were fed standard diets ad libitum. Starting from 2 wk of age, 14 males and 14 females were killed at 2-wk intervals. The carcasses were divided into neck, wings, legs, breast, and back, which were then dissected into muscle, skin with fat, and bones. Before slaughter, the BW of males and females were 6,814 and 5,736 g, respectively. At 2 wk of age, more than half of total muscle content was in the legs (60.98%), and the rest was in the back (17.84%), neck (9.43%), breast (8.78%), and wings (2.97%). To 10 wk of age, the rate of muscle deposition was relatively slow in the legs (a decrease to 31.29%) and fast in the breast and wings (an increase to 34.12 and 12.90%, respectively). Age-related changes in the distribution of skin with fat in the carcass were smaller, compared with changes in muscle distribution. A rising tendency was observed in the muscle content of wings and breast and in the content of skin with fat in the wings and neck, whereas a falling tendency was observed in the other carcass parts. Over the first 8 wk, the proportion of bones decreased in the legs, back, and neck and increased in the wings and breast, as compared with the total bone weight in the carcass.
实验材料包括饲养至14周龄的意大利白鹅（128只雄性和128只雌性）。这些鹅自由采食标准日粮。从2周龄开始，每隔2周宰杀14只雄性和14只雌性鹅。将 carcasses 分为颈部、翅膀、腿部、胸部和背部，然后再将其分解为肌肉、带脂肪的皮肤和骨骼。宰杀前，雄性和雌性鹅的体重分别为6814克和5736克。在2周龄时，总肌肉含量的一半以上位于腿部（60.98%），其余分布在背部（17.84%）、颈部（9.43%）、胸部（8.78%）和翅膀（2.97%）。到10周龄时，腿部肌肉沉积速率相对较慢（降至31.29%），而胸部和翅膀的沉积速率较快（分别增至34.12%和12.90%）。与肌肉分布的变化相比， carcass 中带脂肪皮肤分布的年龄相关变化较小。翅膀和胸部的肌肉含量以及翅膀和颈部带脂肪皮肤的含量呈上升趋势，而 carcass 的其他部分则呈下降趋势。在最初的8周内，与 carcass 中的总骨重相比，腿部、背部和颈部的骨骼比例下降，翅膀和胸部的骨骼比例增加。
