Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
BMC Vet Res. 2024 Oct 10;20(1):460. doi: 10.1186/s12917-024-04314-2.
Recently, efforts like crossbreeding, strain crossing, and inbred hybridization have been performed to improve productive performance in native chickens. This experiment was carried out to evaluate the effects of crossbreeding on the improvement of the productivity of a native chicken. The White Leghorn exotic chicken (WL) as dam line and the Marandi indigenous chicken (MA) as sire line were used to generate the crossbreds (MA × WL). Body weight and egg production traits were measured in the three groups.
There are significant performance differences between WL and MA, with WL exhibiting superior body weight and egg production compared to MA (P < 0.05). Crossbreeding between WL and MA significantly improved most traits, with MA × WL outperforming MA. Negative heterosis was observed for body weight showing similarities between MA and MA × WL. Notably, MA × WL showed a closer resemblance to WL than MA in hen-day egg production at 40 and 44 weeks (P < 0.05).
The results derived from this study show that the economic performance of native chickens can be enhanced through crossbreeding with exotic chickens. Using the crossbred chickens in rural areas can be more efficient than the native chickens. In addition, the resilience of the native chickens to the local environment can be transmitted genetically to the crossbred which should be investigated in further studies.
最近,人们通过杂交、品系杂交和近交杂交等方式努力提高本地鸡的生产性能。本实验旨在评估杂交对提高本地鸡生产性能的影响。白来航外来鸡(WL)作为母系,马兰迪本地鸡(MA)作为父系,杂交产生杂种鸡(MA×WL)。在三组中测量体重和产蛋性能。
WL 和 MA 之间存在显著的性能差异,WL 的体重和产蛋量优于 MA(P<0.05)。WL 和 MA 之间的杂交显著提高了大多数性状,MA×WL 的表现优于 MA。体重表现出负杂种优势,MA 和 MA×WL 之间存在相似性。值得注意的是,MA×WL 在 40 周和 44 周的母鸡日产蛋量上与 WL 更为相似,而不是 MA(P<0.05)。
本研究结果表明,通过与外来鸡杂交可以提高本地鸡的经济性能。在农村地区使用杂交鸡比本地鸡更有效。此外,本地鸡对当地环境的适应能力可以通过遗传传递给杂交鸡,这应该在进一步的研究中进行调查。