Objective To study the growth and development patterns of British-shorthair Cats in the

laboratory. Method Determine the growth performance indicators of laboratory cats aged 0 - 24 weeks, including body weight, average daily gain, daily food intake, and daily water intake. Result the body weight of males was higher than that of females at the same age group, with significant differences ( P< 0. 05) between 10 weeks old, 12 - 14 weeks old, 16 weeks old, 19 - 21 weeks old, and no significant differences in other stages; The weight growth rate of laboratory cats at different growth stages is not stable, and the average daily weight gain changes significantly. However, compared with different genders, the difference between the two is not significant in most growth stages, only 5-6 weeks old and 18-19 weeks old. The average daily weight gain of males is significantly higher than that of females (P< 0. 05) . At the age of 0-24 weeks, the daily average feed intake of males was higher than that of females, with significant differences ( P < 0. 05) among the ages of 11 - 12 weeks, 12 - 13 weeks, and 18 - 19 weeks, while no significant differences were observed among other ages. Comparing the daily average water consumption among different genders at the same age group, females aged 11 - 12 weeks were significantly higher than males (P<0. 01) , males aged 12-13 weeks and 17-18 weeks were significantly higher than females ( P < 0. 05) , males aged 19 - 20 weeks were significantly higher than females ( P < 0. 01) , and males in other growth stages were also higher than females, but the difference was not significant. Conclusion The weight of British-shorthair cats aged 0-24 weeks in the laboratory increases with age, and during this period, the weight of males at the same growth stage is consistently higher than that of females. After 12 weeks, there is a significant weight difference between males and females. The turning point of weight gain for male kittens is between 18-19 weeks of age, while for females it is around 21- 22 weeks of age; male kittens have stronger resistance to stress during weaning and separation compared to female cats.

British-shorthair cats, cats in the laboratory, growth and development

目的 研究实验用英国短毛猫生长发育规律。 方法 测定 0 ~ 24 周龄实验用猫的体质量、平均日增重、日均采食量以及日均饮水量等生长性能指标。 结果 相同周龄下雌雄间比较,雄性体质量均高于雌性,其中 10 周龄、12 ~ 14 周龄、16 周龄、19 ~ 21 周龄差异有统计学意义(P<0. 05) ,其他阶段差异无统计学意义;不同生长阶段实验用猫的体质量增长速度并不平稳,平均日增重变化幅度较大,而不同性别间比较,多数生长阶段二者差异无统计学意义,只有 5 ~ 6 周龄和 18 ~ 19 周龄,雄性的平均日增重显著高于雌性( P<0. 05) ;0 ~ 24 周龄,雄性的日均采食量均高于雌性,其中 11 ~ 12 周龄、12 ~ 13 周龄和 18 ~ 19 周龄差异有统计学意义(P<0. 05) ,其他周龄差异无统计学意义;相同周龄不同性别间进行日均饮水量比较,11 ~ 12 周龄雌性显著高于雄性( P< 0. 01) ,12 ~ 13 周龄、17 ~ 18 周龄雄性显著高于雌性(P<0. 05) ,19 ~ 20 周龄雄性显著高于雌性( P<0. 01) ,其他生长阶段雄性也都高于雌性,但差异并不显著。 结论 0 ~ 24 周龄实验用英国短毛猫的体质量随着周龄的增加而增长,这期间相同生长阶段雄性的体质量始终高于雌性,在 12 周龄后雄性与雌性体质量差距明显;雄性幼猫的体质量增长拐点在 18 ~ 19 周龄,而雌性在21 ~ 22 周龄;雄性幼猫对断奶和分窝的抗应激能力要强于雌猫。

英国短毛猫, 实验用猫, 生长发育