Results 1 to 10 of about 18,766 (263)
Animals, 2023 The present study investigated the effect of low temperature on laying performance, egg quality, body temperature, yolk malondialdehyde, yolk corticosterone, and serum biochemistry in laying hens.
Da-Hye Kim +2 more
exaly +3 more sources
Animal, 2022 Fermented feed has the potential to improve poultry gastrointestinal microecological environment, health condition and production performance. Thus, the present study was undertaken to explore the effects of fermented feed on the laying performance, egg ...
Wei Guo +6 more
doaj +1 more source
Analysis of excreta bacterial community after forced molting in aged laying hens [PDF]
Asian-Australasian Journal of Animal Sciences, 2019 Objective As laying hens become aged, laying performance and egg quality are generally impaired. One of the practical methods to rejuvenate production and egg quality of aged laying hens with decreasing productivity is a forced molting.
Gi Ppeum Han +5 more
doaj +1 more source
Progesterone in the Blood of the Laying Hen [PDF]
Nature, 1958 FRAPS et al. 1, using the bioassay method of Hooker and Forbes2, reported progestational activity in the peripheral blood of the hen. Layne et al. 3, using chromatographic procedures, failed to find progesterone in chicken blood although they did identify this substance in extracts of ovarian tissue. In preliminary studies in this laboratory4, chemical
I M, LYTLE, F W, LORENZ
openaire +2 more sources
Feather loss in laying hens [PDF]
Veterinarski Glasnik, 2006 The paper examined the incidence of different forms of feather loss and cannibalism in laying hens aged 74 weeks following moulting and in laying hens following exploitation for a period of one year.
Hristov Slavča +4 more
doaj +1 more source
Detection of transgenic and endogenous plant DNA fragments and proteins in the digesta, blood, tissues, and eggs of laying hens fed with phytase transgenic corn. [PDF]
PLoS ONE, 2013 The trials were conducted to assess the effects of long-term feeding with phytase transgenic corn (PTC) to hens on laying performance and egg quality, and investigate the fate of transgenic DNA and protein in digesta, blood, tissues, and eggs. Fifty-week
Qiugang Ma +5 more
doaj +1 more source
The PeptideAtlas of the Domestic Laying Hen [PDF]
Journal of Proteome Research, 2017 Proteomics-based biological research is greatly expanded by high-quality mass spectrometry studies, which are themselves enabled by access to quality mass spectrometry resources, such as high-quality curated proteome data repositories. We present a PeptideAtlas for the domestic chicken, containing an extensive and robust collection of chicken tissue ...
James McCord +4 more
openaire +2 more sources
CHANGES IN THYROID HORMONES DURING THE EGG LAYING CYCLE IN FAYOUMI HENS [PDF]
Assiut Veterinary Medical Journal, 1990 T, and The aim of the present study was to determine the levels of T TSH in the serum of laying and non laying Fayoumi chickens. The biological and T, was also measured in these chicken to half life of exogenous T elucidate the relationship between the ...
NAHED E. EL-TOUKHY +3 more
doaj +1 more source
The Journal of Poultry Science, 2022 Upon contact with laid eggs, avians initiate incubation behavior and stop laying additional eggs. This phenomenon suggests that the productivity of laying hens in free-range facilities may decrease because of frequent contact with laid eggs.
Yuichiro Yonetani +3 more
doaj +1 more source
Poultry Science, 2022 : In this study, the effects of 5 graded dietary levels (0.025, 0.05, 0.075, 0.1, and 0.125%) of dimethylglycine (DMG) were studied in laying hens during the late laying period (71–78 wk).
Hong Yao +5 more
doaj +1 more source