Results 21 to 30 of about 16,020 (281)
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
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IMPACT OF USING CASSAVA ROOT MEAL AND DIFFERENT COLORING AGENTS ON LAYING HEN PERFORMANCE AND EGG YOLK COLOR [PDF]
Egyptian Poultry Science, 2018 In this study, 180 Lohman laying hens 50 weeks of age were randomly distributed into 5 groups each has 36 hens in 4 replicates to evaluate the impact of using cassava root meal (CRM) and different coloring agents on laying hen performance, egg quality ...
mamdouh omar
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Administration of probiotics to increase egg production and extend the productivity on late-phase laying hen: a review [PDF]
, 2023 Eggs are a relatively inexpensive and easily obtained food. The average laying hens produce 240 – 260 eggs/bird/year. However, at the age of 80 weeks laying hens must be culled because their productivity has decreased below50%.
Kumalasari, Chitra +3 more
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Inventory of biosecurity measures and antibiotics therapy practices on laying hen farms in Benin [PDF]
Veterinary World, 2020 Background and Aim: Laying hen breeding is on the rise in Benin; nevertheless, there are several sanitary constraints to its development, including bacterial diseases. Faced with this situation, breeders mainly resort to different means of treatment. The
Oscar N. C. Aguidissou +7 more
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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
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Poultry Science, 1984 One hundred fifty Single Comb White Leghorn hens of two strains previously selected for either high eggshell strength (HES strain) or low eggshell strength (LES strain) were treated for 8 weeks with sodium fluoride added to a practical-type corn-soybean meal basal diet at 0, 300, 600, 900, or 1200 ppm.
B, Van Toledo, G F, Combs
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Optimal Placement of Laying Hen House Temperature Sensors Based on Genetic Algorithm
IEEE Access, 2022 The arrangement of temperature sensors in most existing large-scale laying hen houses is random or placed according to the experience of breeders. However, this can’t achieve accurate monitoring of the henhouse.
Xiaoyue Hu +4 more
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Impact of Inlet Flaps on Ammonia Distribution in a Water-Pad Layer House: A Case Study in Yunlin, Taiwan [PDF]
E3S Web of ConferencesTo reduce the risks of extreme climate and avian influenza to laying hen houses, the Taiwanese government has vigorously promoted the reconstruction of open-type laying hen houses into closed-type water-pad cooling laying hen houses.
Chu Yi-Chun +3 more
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Caraka Tani: Journal of Sustainable Agriculture, 2008 The study was aimed to prove the value-added of force molting technology on rejected laying-hen and improve the knowledge and skill of Mukiran village people about its technical assistance.
Ali Mursyid Wahyu Mulyono +2 more
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Genome-wide association studies for small intestine length in an F2 population of chickens
Italian Journal of Animal Science, 2018 Small intestine length is an important physiological index that is effected by nutrient intake and thus plays roles in growth and egg-laying in chickens.
Shangmin Li +8 more
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