Lingens Jan Berend, Abd El-Wahab Amr, Ahmed Marwa Fawzy Elmetwaly, Schubert Dana Carina, Sürie Christian, Visscher Christian
Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany.
Department of Nutrition and Nutritional Deficiency Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt.
Animals (Basel). 2021 Oct 3;11(10):2888. doi: 10.3390/ani11102888.
This study aimed to investigate the possibility of rearing newly hatched chicks with immediate access to feed and water in the same hatching unit one week prior to transferring them to the conventional broiler house with special regards to foot pad health and growth performance. Two trials were performed with a total of 6900/6850 (trials 1/2) broiler chickens (ROSS 308). A total of 3318/3391 chicks (trials 1/2) were transported from the hatchery (duration of about 3 h) and reared in a conventional broiler house (control group: delayed nutrition on-hatchery hatched). The control group did not receive any form of nutrition until they were taken to conventional broiler housing. Additionally, a total of 3582/3459 (trials 1/2) embryonated eggs (d 18) were obtained from the same parent flock of the same commercial hatchery and taken to the farm facility. After on-farm hatch, the chicks had immediate access to water and feed (experimental group: early nutrition on-farm hatched). After d 6/7 of life, the on-farm hatched chicks (trials 1/2) were transferred to the broiler house on the same facility. The delayed nutrition on-hatchery hatched groups displayed a significantly lower dry matter content in the litter compared to the early nutrition on-farm hatched groups (two-factorial analysis) at d 6/7 and d 14 of life. However, thereafter, no significant differences were noted. Based upon two-factorial analysis, the early nutrition on-farm hatched groups revealed lower foot pad lesions from d 14 of life onwards and showed a higher body weight (BW) throughout the rearing period compared to the delayed nutrition on-hatchery hatched groups ( < 0.05). Overall, early nutrition on-farm hatched chickens is of critical importance together with using new litter at d 7 to maintain healthy foot pads as well as to enhance nutrient utilization and optimize the growth performance.
本研究旨在探讨在将新孵化的雏鸡转移到传统肉鸡舍前一周，让它们在同一孵化单元中立即获取饲料和水的可能性，特别关注脚垫健康和生长性能。进行了两项试验，共有6900/6850只（试验1/2）肉鸡（ROSS 308）。共有3318/3391只雏鸡（试验1/2）从孵化场运输（约3小时）并在传统肉鸡舍饲养（对照组：孵化场孵化后延迟营养）。对照组在被转移到传统肉鸡舍之前未接受任何形式的营养。此外，从同一商业孵化场的同一亲本鸡群中获得了总共3582/3459枚（试验1/2）受精蛋（第18天）并带到农场设施。农场孵化后，雏鸡立即可以获取水和饲料（实验组：农场孵化后早期营养）。在出生后第6/7天，农场孵化的雏鸡（试验1/2）被转移到同一设施的肉鸡舍。在出生后第6/7天和第14天，与农场孵化后早期营养组相比，孵化场孵化后延迟营养组的垫料干物质含量显著更低（双因素分析）。然而，此后未观察到显著差异。基于双因素分析，与孵化场孵化后延迟营养组相比，农场孵化后早期营养组从出生后第14天起脚垫损伤更少，并且在整个饲养期体重更高（P<0.05）。总体而言，农场孵化后早期营养对于在第7天使用新垫料以保持脚垫健康、提高养分利用率和优化生长性能至关重要。
