In ovo feeding of Citrus aurantiifolia seed extract on hatchability, chick quality, physiological response, intestinal morphology and posthatch growth performance of cobb 500 broiler chickens

IF 1.6 3区农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Journal of Applied Poultry Research Pub Date : 2024-08-27 DOI:10.1016/j.japr.2024.100471

R.F. Kpossou , B. Adjei-Mensah , O. N'nanle , N. Everaert , K. Tona

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引用次数: 0

Abstract

This experiment was performed to evaluate the effect of in ovo injection of Citrus aurantiifolia seeds extract (CASE) into broiler incubating eggs. Five hundred and four (504) Cobb 500 breeder eggs with evidence of living embryos were selected for air chamber injection on embryonic d 18. The experimental treatments included control (without injection), Ext0.5µg (eggs injected with 0.5 μg/ml of CASE), Ext0.75µg (eggs injected with 0.75 μg/ml of CASE), Ext1µg (eggs injected with 1.0 μg/ml of CASE). After hatching, 360 chicks were distributed to their respective treatments with 6 replicates and raised for 6 wk in a completely randomized design (15 birds per replicate). The hatch events time decreased with increasing levels of CASE injection while at day old, the concentration of hematological parameters and chick quality score increased in all the in ovo injection treatments (P < 0.05). The injection of CASE at 0.5 µg/ml into the incubated eggs increased the weight of chicks at hatch and the ratio of the weight of chicks at hatch to the weight of the incubated egg (P < 0.001) and showed improved values of body weight gain and feed conversion ratio at 42 d. At hatch time, the injection of CASE showed a higher concentration of T4 (thyroxine) and a marked increase in plasma SOD (superoxide dismutase) activity compared to the control (P < 0.05). Additionally, CASE injection caused a significant improvement in the jejunal morphometry (P < 0.05). It was concluded that the in ovo injection of Citrus aurantiifolia seed extract during the prehatch period in broiler eggs is effective at 0.5 µg/ml.

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枳实籽提取物对柯布500肉鸡孵化率、雏鸡质量、生理反应、肠道形态和孵化后生长性能的影响

本实验旨在评估向肉鸡孵化蛋中注射种子提取物（）的效果。选取了五百零四（504）枚有活胚迹象的柯布 500 种鸡蛋，在胚胎第 18 天进行气室注射。实验处理包括对照组（不注射）、Ext0.5µg（注射 0.5 μg/ml CASE 的蛋）、Ext0.75µg（注射 0.75 μg/ml CASE 的蛋）、Ext1µg（注射 1.0 μg/ml CASE 的蛋）。孵化后，360 只雏鸡被分配到各自的处理中，6 个重复，在完全随机设计中饲养 6 周（每个重复 15 只）。随着 CASE 注射量的增加，孵化事件时间缩短，而在日龄时，所有注射处理的血液学参数浓度和雏鸡质量评分均增加（< 0.05）。向孵化蛋中注射 0.5 µg/ml 的 CASE 可增加孵化时雏鸡的体重以及孵化时雏鸡体重与孵化蛋重量之比 ( < 0.001)，42 d 时体重增加值和饲料转化率也有所改善。孵化时，与对照组相比，注射 CASE 的雏鸡 T4（甲状腺素）浓度更高，血浆 SOD（超氧化物歧化酶）活性明显增加 ( < 0.05)。此外，注射 CASE 还显著改善了空肠形态（< 0.05）。结论是，在肉鸡孵化前期注射 0.5 µg/ml 的种子提取物是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Poultry Research 农林科学-奶制品与动物科学

CiteScore

4.10

自引率

10.50%

发文量

审稿时长

104 days

期刊介绍： The Journal of Applied Poultry Research (JAPR) publishes original research reports, field reports, and reviews on breeding, hatching, health and disease, layer management, meat bird processing and products, meat bird management, microbiology, food safety, nutrition, environment, sanitation, welfare, and economics. As of January 2020, JAPR will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers. The readers of JAPR are in education, extension, industry, and government, including research, teaching, administration, veterinary medicine, management, production, quality assurance, product development, and technical services. Nutritionists, breeder flock supervisors, production managers, microbiologists, laboratory personnel, food safety and sanitation managers, poultry processing managers, feed manufacturers, and egg producers use JAPR to keep up with current applied poultry research.