Results 41 to 50 of about 114,741,891 (230)
Folia VeterinariaTemperature fluctuations can act as stressors affecting embryonic development and cellular homeostasis. This study examined the effects of preincubation at 22°C (P22) or 30°C (P30) on quail embryos under in ovo and ex ovo conditions, focusing on the ...
Pokorná Bronislava +4 more
doaj +1 more source
Italian Journal of Animal Science, 2021 The effects of in ovo injection of Arthrospira (Spirulina) Platensis on hatchability, antioxidant and immunity-related genes expression, and hatchling performance of broilers and Japanese quails was assessed in 2 separate experiments.
Hosna Hajati +4 more
doaj +1 more source
Physiological effects of in ovo delivery of bioactive substances in broiler chickens
Frontiers in Veterinary Science, 2023 The poultry industry has improved genetics, nutrition, and management practices, resulting in fast-growing chickens; however, disturbances during embryonic development may affect the entire production cycle and cause irreversible losses to broiler ...
Kouassi R. Kpodo +1 more
doaj +1 more source
Understanding the spacing of placodes in the eye: A comparative study across age and species
The Anatomical Record, EarlyView.Abstract The conjunctival placodes of the avian eye form in an intriguing and conserved sequence in a circular annulus around the cornea. These 13–16 placodes develop into papillae that are essential for inducing underlying intramembranous flat bones, known as scleral ossicles, which form an important part of the ocular skeleton.
Florence Joseph +1 more
wiley +1 more source
Animals, 2021 The chicken gut is the habitat to trillions of microorganisms that affect physiological functions and immune status through metabolic activities and host interaction.
Abdelrazeq M. Shehata +10 more
doaj +1 more source
Animal Research and One Health, EarlyView.Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke +9 more
wiley +1 more source
, 2016 Educação Infantil::Natureza e sociedadeGuia de experimento que permite observar que à medida que há o aumento da concentração de sal na água, a densidade desta se torna maior que a do ovo, resultando na flutuação ...
Gomes, Carlos
core +2 more sources
Effect of Muscle Extract and Graphene Oxide on Muscle Structure of Chicken Embryos
Animals, 2021 The effects of CEME and it complex with GO injected in ovo on the growth and development of chicken embryo hindlimb muscle were investigated. First, the preliminary in vitro study on primary muscle precursor cell culture obtained from a nine-day-old ...
Jaśmina Bałaban +9 more
doaj +1 more source
Principles of ex ovo competitive exclusion and in ovo administration of Lactobacillus reuteri
Poultry Science, 1997 The data that have been presented indicate that the in ovo use of competitive exclusion (CE) agents is feasible for both chickens and turkeys. However, there are many pitfalls that await the use of in ovo application of CE agents, including the use of nonspecies-specific intestinal microbes and the use of harmful proteolytic, gas-producing and toxin ...
F W, Edens +3 more
openaire +2 more sources
Biological Reviews, EarlyView.ABSTRACT The environmental conditions organisms experience during early development can have powerful and sustained effects on morphology, physiology, behaviour, and performance. Such developmental effects can influence reproductive success, survival, and life‐history strategies and can be transmitted across generations (i.e.
Ondi L. Crino +7 more
wiley +1 more source