Results 21 to 30 of about 149,961 (158)

β-Mannanase Derived from Bacillus Subtilis WL-7 Improves the Performance of Commercial Laying Hens Fed Low or High Mannan-Based Diets

The Journal of Poultry Science, 2017
A trial was conducted to investigate the effects of dietary mannan level and β-mannanase supplementation on egg production performance, nutrient retention and blood metabolites of laying hens.
Myung H. Ryu, Abdolreza Hosseindoust, Jin S. Kim, Yo H. Choi, Su H. Lee, Min J. Kim, Jae H. Lee, Byung J. Chae   +7 more
doaj   +1 more source

Effects of Observed Incubation Behavior on Egg Production in Laying Hens of a Commercial Chicken Breed and Detection of Single-Nucleotide Polymorphisms Associated with the Incubation Behavior

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, Atsushi J. Nagano, Hideki Ueno, Tomoko Amano   +3 more
doaj   +1 more source

Shell formation and bone strength in laying hens [PDF]

, 2013
In Sweden almost 3.8% of all eggs are ruined due to cracked eggshells as shell quality declines with age during the laying period. This is a concern for food safety as well as an economical problem.
Wistedt, Anna
core   +1 more source

Effect of Lacticaseibacillus rhamnosus on production performance， egg quality， serum antioxidant and immune indexes of Roman pink laying hens during peak production

Siliao yanjiu, 2023
The experiment was to investigate the effect of Lactobacillus rhamnosus supplementation on production performance, egg quality, serum antioxidant and immune indexes of Roman pink laying hens during peak production. A total of 1 200 Roman pink laying hens
HUANG Ming-yuan, NI Dong-jiao, ZOU Xin-hua, XIONG Ai-jun   +3 more
doaj  

T329S Mutation in the FMO3 Gene Alleviates Lipid Metabolic Diseases in Chickens in the Late Laying Period

Animals, 2021
The T329S mutation in flavin-containing monooxygenase 3 (FMO3) impairs the trimethylamine (TMA) metabolism in laying hens. The TMA metabolic pathway is closely linked to lipid metabolic diseases, such as atherosclerosis and fatty liver disease.
Jianlou Song, Mingyi Huang, Xuefeng Shi, Xianyu Li, Xia Chen, Zhaoxiang He, Junying Li, Guiyun Xu, Jiangxia Zheng   +8 more
doaj   +1 more source

Oxytocin in the Neurohypophysis of the Laying Hen [PDF]

Nature, 1960
ALTHOUGH it has been well known that the administration of posterior lobe hormones induces premature oviposit ion in the hen, Gallus domesticus 1,2, as in other fowls3, it remains undetermined whether the hormone(s) plays an essential part in normal oviposition.
K, TANAKA, S, NAKAJO
openaire   +2 more sources

Control methods for Dermanyssus gallinae in systems for laying hens: results of an international seminar [PDF]

, 2009
This paper reports the results of a seminar on poultry red mite (PRM), Dermanyssus gallinae. Eighteen researchers from eight European countries discussed life cycle issues of the mite, effects of mites on hens and egg production, and monitoring and ...
Zoons, Johan, Moore, D., Kilpinen, O., Thind, Bharat, Thind, B., Mul, Monique, Moore, David, Mul, M.F., Niekerk, T.G.C.M., van, Gjevre, Anne-Gerd, van Niekerk, T.G.C.M., Gjevre, A.G., Maurer, V., Chirico, J., Maurer, Veronika, van Niekerk, Thea, Gjevre, A.-G., Sparagano, Olivier, Kilpinen, Ole, Zoons, J., Chirico, Jan, Bell, B., Chauve, C., Bell, Barbara, Sparagano, O., Chauve, Claude   +25 more
core   +1 more source

Effect of dietary supplementation of Phellinus linteus polysaccharide on lipopolysaccharide induced production performance， serum biochemistry， immunity and antioxidant capacity of laying hens

Siliao yanjiu, 2022
The study was to investigate the effect of supplementation of Phellinus linteus polysaccharide (PL-N) in diet on lipopolysaccharide (LPS) induced production performance, serum biochemistry, immunity and antioxidant capacity of laying hens. A total of 500
Dong-shu JIA, Feng-xian QIN, Bei LIU, Yu-jiao TANG, Wei CHEN   +4 more
doaj  

Effect of agave oligofructose feed on egg production from laying hens

Revista Mvz Cordoba, 2018
Objective. To determine egg production in laying hens treated with oligofructose from agave. Materials and methods. Eighteen weeks old Hy-line W-36 hens (n=300) were distributed randomly into 3 treatment groups: no feed supplementation (control) or feed ...
Ivónn Yanine Chávez-Mora, David Román Sánchez-Chiprés, Jorge Galindo-García, Miguel Ángel Ayala-Valdovinos, Theodor Duifhuis-Rivera, Julio Ly-Carmenatti   +5 more
doaj   +1 more source

Effects of dietary dimethylglycine supplementation on laying performance, egg quality, and tissue index of hens during late laying period

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, Yan Hu, Qiang Wang, Yijian Zhang, Kaiqing Rao, Shourong Shi   +5 more
doaj   +1 more source