四种不同中速型黄羽肉鸡杂交配套效果研究

Study on the Mating Effect of Four Different Medium-speed Yellow-feathered Broilers

该试验通过对4个不同中速黄羽肉鸡专门化品系301、818、502、505构建两系配套组合,并对其孵化性能、成活率、产蛋性能进行比较分析,筛选出最佳的两系配套组合,为进一步培育三元杂交组合的中速型黄羽肉鸡奠定基础。结果表明:301(父)×505(母)、301(父)×818(母)在种蛋合格率、种蛋受精率及入孵蛋孵化率上低于其他组合,但在受精蛋孵化率上与其他组合相比无明显差异。301(父)×818(母)在0~18周成活率及18~66周成活率上低于其他组合。502(父)×505(母)、818(父)×505(母)两系配套组合的开产日龄、开产体重上显著高于其他组合(P<0.05)。502(父)×505(母)两系配套组合的43周龄体重上显著高于其他组合(P<0.05),较818(父)×505(母)高出65.67 g。502(父)×505(母)两系配套组合的43周饲养日产蛋数、66周龄饲养日产蛋数上均显著高于其他组合(P<0.05),较502(父)×818(母)分别高出3个和4个。可见,502(父)×505(母)两系配套组合较其他配套组合,孵化性能好、存活率高。

In this experiment,four different medium-speed yellow-feathered broiler specialized lines 301,818,502,and 505 were constructed to establish a two-line matching combination,and their hatching performance,survival rate,and egg production performance were compared and analyzed.The best two-line matching combination was selected,which laid a foundation for further breeding medium-speed yellow-feathered broilers with a three-way hybrid combination.The results showed that 301(father)×505(mother)and 301(father)×818(mother)had lower qualified rates,fertilization rates,and hatching rates than other combinations,but had no significant difference in fertilized egg hatching rate compared with other combinations.The survival rate of 301(father)×818(mother)was lower than that of other combinations at 0-18 weeks and 18-66 weeks.The opening age and opening weight of 502(father)×505(mother)and 818(father)×505(mother)lines were significantly higher than those of other lines(P<0.05).The body weight of 502(father)×505(mother)two-line matching group was significantly greater than that of other groups at 43 weeks of age(P<0.05),and 65.67g greater than that of 818(father)×505(mother).The number of eggs per day at 43 weeks and 66 weeks of age of 502(father)×505(mother)were significantly greater than other combinations(P<0.05),and the number of eggs per day was 3 and 4 higher than that of 502(father)×818(mother),respectively.It can be seen that the 502(father)×505(mother)two-line matching combination has better hatching performance and higher survival rate than other matching combinations.