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首页> 外文期刊>Revista Brasileira de Ciência Avícola >Establishment of Uropygial Gland Growth Curves for White, Three-Way Crossed Mule Ducklings
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Establishment of Uropygial Gland Growth Curves for White, Three-Way Crossed Mule Ducklings

机译：建立白色，三向交叉的骡子鸭草的uRygial腺体生长曲线

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Growth curves for the uropygial gland (UG) of white, 3-way crossed mule ducklings were established using the Gompertz function. In total, 144 ducklings were fed in 12 floor pens with 12 birds in each pen. Each pen contained an equal number of animals of each sex. Feed and water were supplied ad libitum throughout the entire experimental period. The weekly change in UG weight was recorded in males and females from hatch to 8 weeks of age. The weight and length of the UG, the width of the lobus glandulae uropygialis, the length and width of the pluma of the circulus uropygialis, and the index of the papilla uropygialis were measured once a week in individual ducklings in one pen. The average UG weight gain observed in white, 3-way crossed drakes was significantly higher than that of ducks of 21-56 days of age (P < 0.05). The UG length was 1.64-2.23 times the width of the left or right lobe, and the development of the UG was delayed from 3-4 weeks of age. The morphology of the UG changed from elliptical to elongated-elliptical with age. The right and left lobus glandulae uropygialis were symmetrical. The Gompertz growth functions of the UG in drakes and ducks were W=5.49e -e-0.675(t-1.955) and W=4.76e -e-0.685(t-1.936), respectively, where t represents age in weeks. These equations indicated that the maximum growth rate for drakes occurred at 14.1 days of age and for ducks at 13.6 days of age.
机译：使用Gompertz函数建立了白色，三通交叉骡子小鸭的宫堡腺（UG）的生长曲线。总共有144只鸭子在12楼的钢笔中喂食，每笔12只鸟。每支笔含有相同数量的每种性别。在整个实验期间，提供了饲料和水的广告。 UG重量的每周变化被记录在孵化到8周龄的男性和女性中。 ug的重量和长度，大腿瓣植物植物的宽度，血管植物的血管的长度和宽度以及乳头植物的指数在一支笔中的单独鸭鱼中每周一次测量一次。在白色，3路交叉滴注中观察到的平均UG体重增加显着高于21-56天的鸭子（P <0.05）。 UG长度为左侧或右叶的宽度1.64-2.23倍，并且UG的开发从3-4周的年龄延迟。 UG的形态从椭圆形变为随着年龄的年龄的椭圆形椭圆形。右侧和左侧叶瓣膀胱uloptgialis是对称的。 UG在Drakes和Ducks中的Gompertz生长功能分别是W = 5.49E-E-0.675（T-1.955）和W = 4.76E-E-0.685（T-1.936），其中T代表年龄。这些方程表明，在14.1天和年龄的年龄和鸭子的14.1天内发生了最大的斗争增长率。

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