17周龄燕麦育肥白科卢达鹅的体尺与组织成分之间的相关性。

Correlations between body measurements and tissue composition of oat-fattened White Kołuda geese at 17 weeks of age.

Lukaszewicz E, Adamski M, Kowalczyk A

Department of Poultry Breeding, Institute of Animal Breeding, Wrocław University of Environmental and Life Sciences, Wrocław, Poland.

Br Poult Sci. 2008 Jan;49(1):21-7. doi: 10.1080/00071660701821683.

Abstract

The aim of the present study was to evaluate the yield and tissue composition of carcases from White Kołuda ganders (males) and geese (females), and to determine the relationships between body measurements and carcase tissue composition. 2. The experiment was carried out on 200 geese (100 males and 100 females) reared to 14 weeks of age and then fed with oats for the next 3 weeks. Live body weight and body dimensions, slaughter yield, weight and percentage of muscles and skin with fat in carcase were measured and correlation coefficients were calculated between body measurements and slaughter values and carcase tissue composition. 3. White Kołuda geese reared to 17 weeks of age were characterised by high body weight (6705 g) and good muscle yield (29.9%). Males had greater body weight, musculature and fatness than females. Sternum length and breast circumference, width and depth were good indicators of carcase muscle weight in 17-week-old geese. 4. Negative coefficients of correlation between sternum length and weight of skin with subcutaneous fat indicate that increased selection pressure in pedigree flocks of geese on sternum length should be paralleled by reduced carcase fatness in these birds.

摘要

本研究的目的是评估白科卢达公鹅（雄性）和母鹅（雌性）屠体的产量和组织组成，并确定体尺与屠体组织组成之间的关系。2. 实验选取了200只鹅（100只雄性和100只雌性），饲养至14周龄，然后在接下来的3周内用燕麦喂养。测量了活体重、体尺、屠宰率、屠体中肌肉、带脂肪皮肤的重量和百分比，并计算了体尺与屠宰值以及屠体组织组成之间的相关系数。3. 饲养至17周龄的白科卢达鹅体重较高（6705克），肌肉产量良好（29.9%）。雄性的体重、肌肉组织和脂肪含量均高于雌性。胸骨长度以及胸围、胸宽和胸深是17周龄鹅屠体肌肉重量的良好指标。4. 胸骨长度与带皮下脂肪皮肤重量之间的负相关系数表明，在鹅的纯种群体中，对胸骨长度增加选择压力的同时，这些鹅的屠体脂肪含量应相应降低。