Oke Oyegunle Emmanuel, Alo Ezekiel Taiwo, Oni Aderanti Ifeoluwa, Nwosu Emmanuela Uchenna, Wheto Mathew, Akinjute Obafemi Foluso, Imran-Oloko Galbat Oyindamola, Osisanwo Adeleke
Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria.
Regional Centre of Excellence in Avian Sciences (CERSA), University of Lomé, Lomé, Togo.
Transl Anim Sci. 2024 Apr 26;8:txae070. doi: 10.1093/tas/txae070. eCollection 2024.
This trial was designed to evaluate the influence of hatching egg storage length and broiler breeder hens' age on post-hatch growth performance and physiological responses of FUNAAB-α chickens. Five hundred fertile eggs from each of 60 and 32-wk-old FUNAAB-α breeder hens were collected and assigned to five storage durations (0, 3, 7, 11, and 15 d). The hatching eggs were incubated using the conventional protocol. Data were collected on the growth performance and physiological responses. A 2 × 5 factorial design was used for the experiment. The results revealed that there was a decline in the final body weight in chickens from eggs of 15 and 11 d storage compared to the chickens from 7, 3, and 0 egg storage days. Chickens of 32-week-old breeder hens had higher ( < 0.05) mean corpuscular volume, white blood cell, heterophil, and pack cell volume values compared to 60-week-old breeder hens. Hatchlings from 60-week-old breeders had a higher liver percentage (3.0% yolk-free body weight [YFBW]) than those from 32-week-old breeders (2.8% YFBW). It was concluded that an extended storage duration of 15 d adversely affected the carcass traits and growth performance of chickens from egg storage above seven days.
本试验旨在评估孵化蛋储存时长和肉种鸡年龄对FUNAAB-α鸡孵化后生长性能及生理反应的影响。从60周龄和32周龄的FUNAAB-α种母鸡中各收集500枚受精蛋，并将其分为5个储存时长组（0、3、7、11和15天）。孵化蛋采用常规方法孵化。收集生长性能和生理反应的数据。试验采用2×5析因设计。结果显示，与储存7天、3天和0天的蛋所孵出的鸡相比，储存15天和11天的蛋所孵出的鸡的最终体重有所下降。与60周龄的种母鸡相比，32周龄的种母鸡所孵出的鸡的平均红细胞体积、白细胞、嗜异性粒细胞和红细胞压积值更高（P<0.05）。60周龄种母鸡所孵出的雏鸡的肝脏占比（无卵黄体重[YFBW]的比例为3.0%）高于32周龄种母鸡所孵出的雏鸡（YFBW的比例为2.8%）。研究得出结论，15天的延长储存时长对储存7天以上的蛋所孵出的鸡的胴体性状和生长性能产生了不利影响。
