Results 21 to 30 of about 13,188 (300)
The chicken embryo and its micro environment during egg storage and early incubation [PDF]
, 2008 When egg storage periods are prolonged (>7 days), hatchability and chick quality declines. The reason for this decline has been investigated, but is still not completely understood.
Brand, H., van den +3 more
core +1 more source
Czech Journal of Animal Science, 2006 A total of 1 200 broiler breeder eggs were collected from a commercial flock at the hen age of 37 weeks and divided into storage treatments of 5 and 15 days. Prior to storage, the eggs were further divided into pre-storage incubation (PRESI) 0 (control),
M. Petek, S. Dikmen
doaj +1 more source
Effect of egg weight on hatchability and hatchling weight in Fayoumi, Desi and crossbred (Rhode Island Red X Fayoumi) chickens [PDF]
Veterinary World, 2013 Aim: An experiment was conducted to determine the effect of egg weight on hatchability, embryonic deaths and hatchling weight of three rural breeds (Fayoumi, Desi and crossbred (Rhode Island Red X Fayoumi) chickens. Materials and Methods: Three different
Abdul Rashid +5 more
doaj +1 more source
Polychlorinated Biphenyls Influence on Hatchability ,
Poultry Science, 1973 Abstract Broiler breeder hens and Leghorn hens fed a diet containing 20 and 50 p.p.m. polychlorinated biphenyls (Aroclor 1242) for one week had their hatchability (percent hatch of eggs set) reduced to 67.3 and 26.8 percent, respectively, of control hens. The hatchability of the broiler hens fed 50 p.p.m.
D M, Briggs, J R, Harris
openaire +2 more sources
Effect of including n-3/n-6 fatty acid feed sources in diet on fertility and hatchability of broiler breeders and post-hatch performance and carcass parameters of progeny [PDF]
Asian-Australasian Journal of Animal Sciences, 2020 Objective The present trial was conducted to determine the influence of different dietary fatty acid (omega-3 and omega-6) sources on reproductive performance of female broiler breeders and growth performance and carcass traits of their progeny.
Seyyed Naeim Saber, Hasan Rustu Kutlu
doaj +1 more source
Journal of the Indonesian Tropical Animal Agriculture, 2019 This study was embarked upon to predict hatchability and mortality rate of Muscovy ducks in Nasarawa State, Nigeria. Data were obtained from a total of 119 duck farmers. The automatic linear modelling (ALM) and artificial neural network (ANN) models were
A. Yakubu +3 more
doaj +1 more source
Japanese poultry science, 1987 Teratogenic effect of pyrimethamine at dietary levels of 0, 5, 10, and 20ppm was examined. Fertile eggs obtained by feeding the experimental diets to laying White Leghorn hens, were set in an incubator. Fertility, early and late mortality of the embryos, hatchability and incidence of the deformed chicks were tested. Pyrimethamine up to 20ppm had little
YOSHIDA, Minoru +4 more
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Effect of egg weight on hatching characteristics of emu eggs
Indian Journal of Animal Sciences, 2014 The study was carried out to investigate the effects of egg weight on hatchability traits in emu (Dromiceius novaehollandiae) eggs. Emu eggs (393) that hatched from 3 different egg weight groups (below 500 g (G 1), 501 to 600 g (G 2) and above 601 g (G 3)
P N RICHARD JAGATHEESAN +2 more
doaj +1 more source
Effect of some parental and environmental factors on some reproductive traits of Japanese quails
Italian Journal of Animal Science, 2010 The present study was undertaken to determine the influence of parental and environmental factors (body weight, laying period, egg weight and light) on some reproductive characteristics of the Japanese quail. Data pertaining to 2413 eggs obtained from 40
Nilufer Sabuncuoglu +2 more
doaj +1 more source
Influence of Oxygen Concentration on Hatchability and on Selecting for Hatchability , ,
Poultry Science, 1955 Abstract OBTAINING a respectable hatching percentage from the eggs of domestic poultry is one of the important problems of the poultry industry in areas of high elevation. This problem exists at Laramie, Wyoming, where the elevation is approximately 7,200 feet above sea level. The Wyoming Agricultural Experiment Station, highest in the United States,
openaire +1 more source