Results 21 to 30 of about 7,593 (253)
Morphology, Blood Chemistry and Behavioral Response of Crossbred Chickens Reared Under Alternative Production Systems [PDF]
Brazilian Journal of Poultry Science, 2020 In the present study, the second generation of two genotypes RNN (Rhode Island Red × Naked Neck) and BNN (Black Australorp × Naked Neck) obtained by two self-crosses (RNN × RNN =RR and BNN × BNN= BB) and two reciprocal crosses (RNN × BNN = RB and BNN ...
M Usman, A Mahmud, J Hussain, A Javid
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Litter use by laying hens in a commercial aviary: dust bathing and piling
Poultry Science, 2015 The laying hen industry, including in the United States, is responding to social concerns about hen welfare by implementing alternative housing systems such as the aviary, to provide more space and resources to large groups of hens.
Dana L. M. Campbell +3 more
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Frontiers in Animal Science, 2023 Introduction To prepare laying hens for life in cage-free aviaries, they must be reared in aviaries that accustom them to the challenges of navigating a complex three-dimensional structure.
A. Rentsch +5 more
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Welfare parameters and keel bone damage in laying hens reared in different production systems [PDF]
Biotechnology in Animal Husbandry, 2021 The aim of this study was to determine the effect of housing system and the age of hens on welfare parameters and the prevalence of keel bone damage in laying hens. In this study two housing systems were evaluated: aviary system and enriched cages.
Spiridonović Sava +4 more
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Animals, 2022 Simple Summary The diet’s energy and protein content must be adjusted to ensure that hens consume enough nutrients needed to cope with growth and onset of egg production. However, the main difference in nutrition between conventional cage and alternative
Chan-ho Kim, H. Kang
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Long-term monitoring reveals an avian species credit in secondary forest patches of Costa Rica [PDF]
PeerJ, 2017 Degraded and secondary forests comprise approximately 50% of remaining tropical forest. Bird community characteristics and population trends in secondary forests are infrequently studied, but secondary forest may serve as a “safety net” for tropical ...
Steven C. Latta +4 more
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Avian community characteristics and demographics reveal how conservation value of regenerating tropical dry forest changes with forest age [PDF]
PeerJ, 2018 Expansion of secondary forests following the abandonment of agriculture may have important implications for bird conservation, but few studies have examined the dynamics of this process.
Steven C. Latta +3 more
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Poultry Science, 2021 : This study analyzed the influence of an aviary system, in comparison with battery cages, on rearing and reproduction of parent-stock (PS) laying-type chickens. ISA Brown PS chicks were reared for 16 wk in battery cages or in an aviary system.
Krzysztof Damaziak +5 more
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Pecking Behavior in Conventional Layer Hybrids and Dual-Purpose Hens Throughout the Laying Period
Frontiers in Veterinary Science, 2021 To avoid the killing of surplus male layer chickens, dual-purpose hybrids are suggested as an alternative approach. These strains may offer additional advantages compared to conventional laying hens, for instance, a lower tendency to develop injurious ...
Lorena Rieke +4 more
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Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi, 2022 For studies of thermal performance, computational modeling has been presented as an important decision-making tool to solve complex and everyday problems in poultry production and research.
Indira C. M. Gonçalves +5 more
semanticscholar +1 more source