Results 41 to 50 of about 149,961 (158)
The effect of optimized lighting conditions on feather pecking and production of laying hens [PDF]
, 2010 Feather pecking is one of the major problems in commercially kept laying hens.
Gunnink, H. +3 more
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Siliao yanjiu, 2023 The aim of the experiment was to investigate the effect of adding composite probiotics to the diet on production performance, egg quality, serum immunological indexes and intestinal flora of Hyline brown laying hens.
JU Yu-xin +3 more
doaj
Frontiers in Veterinary Science, 2023 An experiment was conducted to evaluate the dietary supplementation with lysozyme's impacts on laying performance, egg quality, biochemical analysis, body immunity, and intestinal morphology. A total of 720 Jingfen No.
Daniel Sindaye +14 more
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A Study of Aflatoxicosis in Laying Hens
Poultry Science, 1970 Abstract INTRODUCTION THE lethal potential of aflatoxins was recognized when aflatoxins were discovered and found to be the etiological agent responsible for the losses of turkey poults (Blount, 1961), ducklings and chickens (Asplin and Carnaghan, 1961), swine (Loosmore and Harding, 1961), and calves (Loosmore and Markson, 1961) in Great Britain ...
W M, Sims, D C, Kelley, P E, Sanford
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Effect of fermented Chinese medicine on production performance and egg quality of laying hens
Siliao yanjiu, 2022 The experiment was to study the effect of replacing part of diet with fermented Chinese medicine on performance and egg quality of laying hens. Twenty thousand 280-day-old laying hens were divided into two groups, with five replicates in each group and 2
Chun-jie ZHANG
doaj
Virginiamycin and Laying Hen Performance
Poultry Science, 1985 Two experiments were conducted for five 28-day periods each. In Experiments 1 and 2, Hyline W-36 hens, 36 and 26 weeks of age, respectively, were used. Experiment 1 was designed to measure the effect of virginiamycin on hen performance and egg characteristics when supplementing a diet having low pigmentation potential.
R D, Miles, D M, Janky, R H, Harms
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Genetic analysis of production, immunity and behaviour in laying hens [PDF]
, 2010 The new regulations about the husbandry of laying hens and the so-called genomic revolution offer both opportunities and challenges for the breeding of layers. Hens are currently housed mainly in battery cages of 4 individuals each.
Biscarini, F.
core
Research progress on the application effect of Chinese herbal medicine feed additive in laying hens
Siliao yanjiu, 2021 The development trend of modern animal husbandry is to produce green and safe animal products. Reasonable addition of Chinese herbal feed additives to laying hens can effectively improve the immunity of laying hens and egg production, and improve the ...
Huan-yu LIU +4 more
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Italian Journal of Animal Science, 2018 A two level factorial experiment (3 × 3) was designed to evaluate the effect of dietary inclusion level of probiotic and breed on productive performance, immune status and egg quality characteristics in laying hens reared under high ambient temperature ...
Moataz Fathi +5 more
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The quality comparison of eggs laid by laying hens kept in battery cages and in a deep litter system
Czech Journal of Animal Science, 2006 At present the laying hen rearing is transformed into alternative housing systems which include a deep litter system. As for the poultry nutrition, the replacement of animal protein with vegetable protein in poultry feed is applied.
V. Pištěková +4 more
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