Results 21 to 30 of about 213,922 (339)
What determines hatchling weight: breeder age or incubated egg weight?
Brazilian Journal of Poultry Science, 2011 Two experiments were carried out to determine which factor influences weight at hatch of broiler chicks: breeder age or incubated egg weight. In Experiment 1, 2340 eggs produced by 29- and 55-week-old Ross® broiler breeders were incubated.
AB Traldi +5 more
doaj +1 more source
The performance of egg hens when using a prebiotic preparation
Тваринництво та технології харчових продуктів, 2022 The relevance of this study is conditioned upon the active introduction of prebiotic preparations into the practice of feeding poultry and the need to determine the impact of their use on quantitative and qualitative indicators of productivity.
Hanna Chernikova +3 more
doaj +1 more source
Effect of Egg Yolk Size on Yolk Cholesterol Concentration.
Experimental Biology and Medicine, 1963 SummaryWithin a line of birds, there was an inverse relation between size of the yolk and cholesterol concentration of the yolk. On a dry weight basis there was a difference between the regression coefficients for 2 strains with respect to yolk cholesterol. A differential rate of cholesterol transfer into the follicle existed between strains.
S. L. Balloun +2 more
openaire +3 more sources
Vascular remodeling of the mouse yolk sac requires hemodynamic force [PDF]
, 2007 The embryonic heart and vessels are dynamic and form and remodel while functional. Much has been learned about the genetic mechanisms underlying the development of the cardiovascular system, but we are just beginning to understand how changes in heart ...
Chen, Ju +5 more
core +1 more source
On the Structure of a Hen's Egg Yolk and Yolk Spheres
Japanese poultry science, 1971 1. Yolk of a egg was fixed with 10% acrolein-0.05M phoshate buffer (pH 7.4) of LUFT11) by keeping in a cold dark place for 5-7 days and frazen sections of 3-7μ thickness, usually of 5μ, were prepared. Some of the sections were stained for lipid with Sudan IV or Sudan Black B-55% ethanol solution, 1% Nile Blue A solution, or BAKER'S acid hematein. Other
Kentaro Kono +2 more
openaire +3 more sources
Dietary yolk supplementation decreases rates of yolk deposition in Japanese quail
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, 2022 AbstractGeneration of egg yolk by birds requires the synthesis and deposition of large amounts of protein and lipid, and is often accompanied by the incorporation of additional physiological mediators. While there has been much work examining the relative quantities of yolk components, as well as potential adaptive patterns of their allocation, we ...
Kristen J. Navara +2 more
openaire +2 more sources
Polarized cortical tension drives zebrafish epiboly movements [PDF]
, 2016 The principles underlying the biomechanics of morphogenesis are largely unknown. Epiboly is an essential embryonic event in which three tissues coordinate to direct the expansion of the blastoderm.
Amayra Hernández‐Vega +13 more
core +2 more sources
Thawing process calculation of egg ingredients particles in minced meat
Теория и практика переработки мяса, 2019 Sausages from poultry meat are present on the domestic market. In this regard, the problem of improving the competitiveness of these products is urgent. One way to solve this problem is to replace part of the raw meat in the minced meat for sausages with
V. P. Agafonychev, V. N. Makhonina
doaj +1 more source
Antimicrobial agents in laying hens [PDF]
Zbornik Matice Srpske za Prirodne Nauke, 2022 The European Union permitted 6 antimicrobial agents that can be used in laying hens. These are colistin, tyrosine, neomycin, oxytetracycline, chlortetracycline, and erythromycin.
Ćupić Vitomir N. +5 more
doaj +1 more source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006 Estudou-se o efeito de diferentes fontes de ácidos graxos insaturados (óleo de canola e semente de linhaça), acrescidas de diferentes teores de alfa-tocoferol nas dietas de poedeiras, sobre a composição de ácidos graxos da gema do ovo foi estudado. Foram
M.C.G. Pita +3 more
doaj +1 more source