In ovodelivery of various biological supplements, vaccines and drugs in poultry: current knowledge

Abstract

The technique of delivering various nutrients, supplements, immunostimulants, vaccines, and drugs via the in ovo route is gaining wide attention among researchers worldwide for boosting production performance, immunity and safeguarding the health of poultry. It involves direct administration of the nutrients and biologics into poultry eggs during the incubation period and before the chicks hatch out. In ovo delivery of nutrients has been found to be more effective than post‐hatch administration in poultry production. The supplementation of feed additives, nutrients, hormones, probiotics, prebiotics, or their combination via in ovo techniques has shown diverse advantages for poultry products, such as improved growth performance and feed conversion efficiency, optimum development of the gastrointestinal tract, enhancing carcass yield, decreased embryo mortality, and enhanced immunity of poultry. In ovo delivery of vaccination has yielded a better response against various poultry pathogens than vaccination after hatch. So, this review has aimed to provide an insight on in ovo technology and its potential applications in poultry production to deliver different nutrients, supplements, beneficial microbes, vaccines, and drugs directly into the developing embryo to achieve an improvement in post‐hatch growth, immunity, and health of poultry. © 2019 Society of Chemical Industry

The effects of in ovo nicotinamide riboside dose on broiler myogenesis

“…In ovo feeding is defined as direct administration of a compound into eggs during incubation ( Saeed et al., 2018 ). Studies demonstrated this technique supplied nutrients directly into chicken embryos which improved muscle development and growth, enhanced breast meat yield and feed utilization ( Bhanja et al., 2008 ), and decreased embryo mortality and morbidity by strengthening immunity and protection status against important infectious pathogens ( Madej and Bednarczyk, 2016 ).…”

Effect of in ovo glyphosate injection on embryonic development, serum biochemistry, antioxidant status and histopathological changes in newly hatched chicks

“…The technique of delivering various substances via the in ovo route is gaining wide attention among researchers worldwide (Saeed et al, ) to benefit from useful materials (Elnesr et al, ; Elwan et al, ) or to find out the negative effects of some substances, such as glyphosate, in an early stage. Glyphosate, N‐(phosphonomethyl) glycine, use is now widespread in the agricultural production, both in industrialized and in developing countries (Benbrook, ).…”

Does in Ovo Injection of Two Chicken Strains with Royal Jelly Impact Hatchability, Post-Hatch Growth Performance and Haematological and Immunological Parameters in Hatched Chicks?

“…Embryonic growth in poultry can be manipulated through in ovo administration of nutrients and natural bioactive compounds [1,2,3,4,5,6,7]. In ovo injection of such substances influences the pre- and post-hatching physiological status of broiler embryos, leading to improved hatchability, superior nutritional status of hatchlings, greater vigour and higher post-hatch growth [8,9].…”