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Effects of flock age, storage temperature, and short period of incubation during egg storage, on the albumen quality, embryonic development and hatchability of long stored eggs
British Poultry Science ( IF 2 ) Pub Date : 2021-03-31 , DOI: 10.1080/00071668.2021.1887454
S Özlü 1 , A Uçar 1 , T Erkuş 2 , S Yasun 3 , A D Nicholson 2 , O Elibol 1
Affiliation  

ABSTRACT

1. The effect of breeder flock age, storage temperature and a short period of incubation during egg storage (SPIDES) on albumen quality, development of blastoderm, and hatchability of long-stored eggs was evaluated.

2. Hatching eggs were collected from 28-week-old (young) and 40-week-old (prime) Ross female line grandparent flocks and were stored for 14 d at 12, 15 or 18°C. During storage, the eggs were either kept continuously in the storage room (control) or were subjected to SPIDES treatment.

3. Embryonic development was more advanced in eggs from the prime flock, exposed to SPIDES and warmer (18°C) storage temperature (P ≤ 0.05). There was a difference in the albumen pH for flock ages (P < 0.05), but the SPIDES treatment did not affect albumen height and pH (P > 0.05). On d 14 of storage, albumen pH was positively (P < 0.05) correlated with storage temperature. Hatchability was higher in the prime flock (P < 0.05).

4. At both flock ages, hatchability increased (P < 0.05) by storing the eggs at 15°C, compared to 18°C, with 12°C intermediate. The hatchability improvement was due to reduced early embryonic mortality.

5. The SPIDES treatment decreased late embryonic mortality and the percentage of second-grade chicks (P < 0.05), which increased the hatchability of fertile eggs (P < 0.05). SPIDES only reduced (P < 0.05) early embryonic mortality in eggs stored at 18°C.

6. The highest hatchability was observed in the eggs stored at 15°C and exposed to one SPIDES treatment during 14 d storage.



中文翻译:

鸡群日龄、贮藏温度、贮蛋期短孵化期对长期贮藏蛋的蛋白质量、胚胎发育和孵化率的影响

摘要

1. 评估了种鸡群的年龄、储存温度和鸡蛋储存期间的短孵化期 (SPIDES) 对蛋白质量、胚盘发育和长期储存鸡蛋孵化率的影响。

2.从28周龄(幼)和40周龄(初级)Ross母系祖父母群中收集孵化卵,并在12、15或18°C下储存14天。在储存期间,鸡蛋要么连续保存在储藏室(对照)中,要么接受 SPIDES 处理。

3. 来自原始鸡群、暴露于 SPIDES 和较高 (18°C) 储存温度 (P ≤ 0.05) 的鸡蛋的胚胎发育更先进。鸡群年龄的蛋白 pH 值存在差异(P < 0.05),但 SPIDES 处理不影响蛋白高度和 pH 值(P > 0.05)。在储存第 14 天,蛋白 pH 值与储存温度呈正相关(P < 0.05)。主要鸡群的孵化率更高(P < 0.05)。

4. 在两个鸡群中,将种蛋储存在 15°C 与 18°C 相比,孵化率增加 (P < 0.05),中间温度为 12°C。孵化率的提高是由于早期胚胎死亡率的降低。

5. SPIDES处理降低了晚期胚胎死亡率和二级雏鸡的百分比(P < 0.05),从而提高了受精卵的孵化率(P < 0.05)。SPIDES 仅降低 (P < 0.05) 储存于 18°C 的鸡蛋的早期胚胎死亡率。

6. 在 15°C 下储存并在 14 天储存期间暴露于一种 SPIDES 处理的种蛋中观察到最高的孵化率。

更新日期:2021-03-31
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