Abstract
The poultry industry plays a large role in the Brazilian economy. In fact,Brazil ranks as the world’s leading exporter and second largest producer ofpoultry meat as the result of genetic improvement, animal nutrition,management, and biosecurity. During the development of bird embryos, thenutrients are stored within the egg, but carbohydrate supplementation isunsatisfactory upon hatching. Poor carbohydrate supplementation candamage the embryo development and negatively affect poultry weight. Inovo feeding is a promising technique to improve the quality of newly hatchedchicks as it uses systems for feeding the embryos by inoculating nutrientsinto the egg amniotic fluid. However, further studies are needed in order toimprove this technique and create effective implementations and protocolsthat can be widely used in the industry. This study aims to both review theliterature on the use of in-ovo feeding and understand the perspectives ofits use in the broiler production chain.
Highlights
In 2018, the agriculture contributed with approximately 4.4 percent of the value added to the Brazilian gross domestic product (GDP), which corresponded to ca. 297.8 billion BRL (IBGE, 2019)
The poultry farming industry employs over 3.6 million people in Brazil, and accounts for around 1.5% of the national GDP
This review aims to conceptualize and discuss the possibilities of using in-ovo feeding in the broiler production while considering the birds’ physiological needs and the results of recent scientific studies on the subject
Summary
In 2018, the agriculture contributed with approximately 4.4 percent of the value added to the Brazilian gross domestic product (GDP), which corresponded to ca. 297.8 billion BRL (IBGE, 2019). Still, considering the birds’ physiological pattern, there is an inversely proportional relationship between glycogen reserves and the chick’s weight (Goes, 2018). This suggests that providing nutrients during the embryo stage may improve the chick’s energy and nutritional status towards the end of incubation and upon hatching (Campos et al, 2011). Egg nutrition stands out as one of such alternatives, aiming to increase the levels of nutrients available to the embryo and eventually improve its nutritional status during hatching (Campos et al, 2011; Goes, 2018). This review aims to conceptualize and discuss the possibilities of using in-ovo feeding in the broiler production while considering the birds’ physiological needs and the results of recent scientific studies on the subject
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