Oliveira Gabriel da Silva, McManus Concepta, Salgado Cristiane Batista, Dos Santos Vinícius Machado
Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil.
Laboratory of Geosciences and Human Sciences, Federal Institute of Brasília-Campus Brasília, Brasília 70830-450, Brazil.
Vet Sci. 2023 Apr 17;10(4):296. doi: 10.3390/vetsci10040296.
Recent advances in poultry practice have produced new tools enabling the poultry industry to increase productivity. Aiming at increasing production quality, varying protocols of in ovo injection facilitate the introduction of exogenous substances into the egg to complement the nutrients that support embryonic development up to hatching, which are already available in the internal and external compartments. Due to embryonic sensitivity, adding any substance into the egg can be either advantageous or disadvantageous for embryonic survival and can influence hatch rates. Thus, understanding the relationship between poultry practices and production rates is the first step towards successful commercial application. This review aims to assess the influence on hatch rates of injecting different substances in ovo, including effects on embryo and chick health parameters where these are reported. Bibliographic mappings of co-authorship of citations, co-occurrence of keywords, and bibliographic coupling based on the in ovo injection technique and hatchability parameters were also performed. Using the Scopus database, 242 papers were retrieved, reviewed, and submitted for bibliographic mapping using the VOSviewer software. This review provides a broad overview of just over 38 years' research on the subject, revealing that studies have significantly increased and peaked in 2020, being produced primarily by US researchers and published primarily in the journal . It also reveals that despite negative reports relating to some substances in the embryo, in ovo delivery of substances may possibly change the poultry industry for the better in terms of production rates (hatchability) and/or poultry health.
家禽养殖实践的最新进展带来了新工具，使家禽业能够提高生产力。为了提高生产质量，不同的卵内注射方案有助于将外源物质引入鸡蛋，以补充支持胚胎发育直至孵化的营养物质，这些营养物质已存在于内部和外部隔室中。由于胚胎敏感性，向鸡蛋中添加任何物质对胚胎存活可能有利也可能不利，并会影响孵化率。因此，了解家禽养殖实践与生产率之间的关系是成功进行商业应用的第一步。本综述旨在评估卵内注射不同物质对孵化率的影响，包括对胚胎和雏鸡健康参数的影响（若有相关报道）。还基于卵内注射技术和孵化率参数进行了引文共同作者关系、关键词共现以及文献耦合的文献图谱绘制。使用Scopus数据库检索、审查了242篇论文，并使用VOSviewer软件提交进行文献图谱绘制。本综述对该主题38年多的研究进行了广泛概述，表明研究数量显著增加，并在2020年达到峰值，主要由美国研究人员开展，主要发表在该期刊上。它还表明，尽管有关于胚胎中某些物质的负面报道，但卵内物质递送可能会在生产率（孵化率）和/或家禽健康方面使家禽业变得更好。
