ASSESSMENT OF THE EFFECTS OF SEPARATE SEX FEEDING ON THE WELFARE AND PRODUCTIVITY OF BROILER BREEDER FEMALES

被引：6

作者：

HOCKING, PM

机构：

[1] Agricultural and Food Research Council Institute for Grassland and Animal Production, Poultry Department, Roslin

来源：

BRITISH POULTRY SCIENCE | 1990年 / 31卷 / 03期

关键词：

D O I：

10.1080/00071669008417278

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

1. The welfare and productivity of female broiler breeders were studied in pens containing 15 females and 1 male where the sexes were fed together or separately by means of a grid with 40 mm spaces over the female feeders. 2. Average head width did not increase after 25 weeks of age. 3. The rate of lay was lower in separate compared with mixed -sex-fed pens but egg weight was similar. 4. The incidence of swollen heads and beak lesions was higher and feather loss and rate of food intake was lower in separate compared with mixed-sex-fed pens. 5. It was concluded that the grid spaces should be 42 mm wide to avoid adverse effects on welfare and productivity. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：457 / 463

页数：7