Kasperek Kornel, Drabik Kamil, Miachalak Katarzyna, Pietras-Ożga Dorota, Winiarczyk Stanisław, Zięba Grzegorz, Batkowska Justyna
Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, 13 Akademicka St., 20-950 Lublin, Poland.
Department of Epizootiology and Clinic of Infectious Diseases, University of Life Sciences of Lublin, 30 Głęboka St., 20-612 Lublin, Poland.
Animals (Basel). 2021 Feb 17;11(2):517. doi: 10.3390/ani11020517.
The aim of the study was to assess the influence of sex, including caponization, on selected physiological and productive traits of Greenleg partridge (GP) birds. The study material consisted of 120 GP chicks (40 females and 80 males), divided into 3 equal groups (4 replication in each) and kept in litter system and fed a. A total of 40 cocks have been surgically castrated. The body weight (BW) of birds were measured biweekly. At the age of 24 weeks 8 birds/group were slaughtered, their carcasses were subjected to simplified dissection. Blood samples were collected and among others biochemical profile of serum was established. The lowest BW, regardless of age, had hens. From 18th week capons had the highest BW and finally it was similar to cocks. Cocks demonstrated, significantly, the highest carcass yield, however, the biggest proportion of breast muscles were stated in capons carcasses. The effect of sex is very clear in case of abdominal fat pad. The highest proportion of it was found in females but the lack of sex hormones in capons also contributed to a higher fat accumulation. The serum profile showed that the sexual maturity of hens increased lipids content (cholesterol, trigliceroles) caused by laying production.
本研究的目的是评估性别（包括去势）对绿腿鹧鸪（GP）某些生理和生产性状的影响。研究材料包括120只GP雏鸡（40只雌性和80只雄性），分为3个相等的组（每组4个重复），采用垫料饲养系统并喂食。总共40只公鸡接受了手术阉割。每两周测量一次鸡的体重（BW）。在24周龄时，每组宰杀8只鸡，对其胴体进行简化解剖。采集血样并测定血清生化指标等。无论年龄大小，母鸡的体重最低。从第18周开始，去势公鸡的体重最高，最终与公鸡相似。公鸡的胴体产率显著最高，然而，去势公鸡胴体的胸肌比例最大。在腹部脂肪垫方面，性别影响非常明显。雌性的腹部脂肪垫比例最高，但去势公鸡缺乏性激素也导致脂肪积累增加。血清指标显示，母鸡的性成熟因产蛋导致脂质含量（胆固醇、甘油三酯）增加。
