Results 41 to 50 of about 203,894 (311)
Biometric Characterization of the Portuguese Autochthonous Hens Breeds
Animals, 2021 Promotion of the conservation and preservation of local breed’s biodiversity combined with the concept of sustainable agriculture and development of economically marginal areas are important policies to implement in modern society.
Nuno V. Brito +4 more
doaj +1 more source
Effects of the compulsory indoor confinement of organic layer poultry: a dust storm! [PDF]
, 2006 In August 2005 an order was issued in the Netherlands for free range poultry to be kept indoors to prevent the introduction of avian influenza. The Animal Sciences Group of Wageningen UR (Wageningen University and Research Centre) conducted a telephone ...
Kijlstra, Aize, van der Werf, Joop
core +1 more source
Advanced Science, EarlyView.This study shows that amyloid fibrils form nematic condensates via liquid–liquid crystalline phase separation (LLCPS). With increasing pH, this transition shifts toward disordered condensates formed through liquid–liquid phase separation (LLPS), in which birefringence with lack of a coherent nematic field symmetry originates from enthalpic fibril ...
Milad Radiom, Raffaele Mezzenga
wiley +1 more source
Revista Brasileira de Zootecnia, 2010 Com o objetivo de determinar os níveis de aminoácidos sulfurosos digestíveis para estabelecer a relação ideal metionina + cistina/lisina em rações para poedeiras leves no período de 42 a 58 semanas de idade, 216 aves da marca comercial Hy-Line W36 foram ...
Gladstone Brumano +5 more
doaj +1 more source
Energies, 2020 In process industries, the heating gap in heat exchanger networks (HENs) is normally compensated by the steam generated from a utility system, thus these two mutually influencing systems should be designed as a whole through establishing structural ...
Yao Sheng +4 more
doaj +1 more source
Optimising the use of hen runs by structures [PDF]
, 2005 One of the main problems in free range husbandry of laying hens is the uneven use of the hen run. This leads to an overuse of pasture near the hen house.
Hirt, Helen, Zeltner, Esther
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Foreign labor, peer‐networking and agricultural efficiency in the Italian dairy sector
Agribusiness, EarlyView.Abstract While the presence of immigrants in the agricultural sector is widely acknowledged, the empirical evidence on its economic consequences is lacking, especially from a microeconomic perspective. Using the Farm Accountancy Data Network panel data for Italian dairy farms in the period 2008–2018, the present study investigates the relationship ...
Federico Antonioli +2 more
wiley +1 more source
Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens
Revista Brasileira de Zootecnia, 2019 The objective of this study was to evaluate levels of inclusion of an enzyme complex (EC) in corn- and soybean meal-based diets for laying hens on the digestibility of nutrients and energy.
Jaqueline de Cássia Ramos da Silva +7 more
doaj +1 more source
Development of prevention and treatment strategies for parasites in poultry [PDF]
, 2007 Parasitic infections are likely to be more important in organic and other free-range hens than in birds kept indoors. Several workpackages of QLIF aim at improving prevention and therapy of helminth (Ascaridia galli and Heterakis gallinarum) and ...
Amsler, Zivile +3 more
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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 ...
A.-G. Gjevre +15 more
core +3 more sources