Results 11 to 20 of about 11,176 (258)
Variation in digestibility parameters related to feed efficiency between and within two laying hen lines [PDF]
Poultry ScienceTo meet the increasing demand for eggs, while limiting the environmental impact, an increased efficiency of laying hen production is required. Feed efficiency (FE) plays a major role in this.
Ghyslaine C.B. Schopen +8 more
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Effect of fermented laying hen manure and starter feed as growing media on black soldier fly larvae development [PDF]
BIO Web of Conferences, 2023 This study aimed to evaluate the development of Black Soldier Fly (BSF) larvae when reared on different feeding media, specifically using varying ratios of fermented laying hen manure and starter feed.
Wiyoso Shelfia Anggraini +3 more
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The effect of space allowance in the cage and floor systems on feather condition and egg production [PDF]
Biotechnology in Animal Husbandry, 2022 The egg production sector is in a transitional period with regard to the permitted housing systems, i.e. rearing in conventional cages under certain conditions to the complete ban of any form of cage system.
Škrbić Zdenka +6 more
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Animals, 2022 Injurious pecking, commonly controlled by beak trimming (BT), is a widespread issue in laying hens associated with thwarted foraging. This controlled study compared the effect in intact and beak-trimmed pullets of providing pecking pans to eight ...
Paula Elizabeth Baker +2 more
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Soybean oil addition to wheat bran-based diet improves laying hens’ performance [PDF]
Veterinary World, 2023 Background and Aim: Wheat bran (WB) is used extensively in animal feed. Despite its nutritional value, its use is limited because of its high-fiber content.
Mariana Novela +10 more
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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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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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Poultry Science, 2020 The application of micro-CT in small animal research, especially on bone health, has risen exponentially in recent years. However, its application in egg-laying hen bone analysis was still limited. This review introduces the technical aspects of micro-CT
C. Chen, W.K. Kim
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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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