Results 41 to 50 of about 887,796 (336)
Nest preference and laying duration traits to select against floor eggs in laying hens
Genetics Selection Evolution, 2023 Background Floor eggs, which are defined as eggs that hens lay off-nest, are a major issue in cage-free layer poultry systems. They create additional work for farmers because they must be collected by hand.
Lorry Bécot +4 more
doaj +1 more source
Changes in duodenal and nephritic Ca and P absorption in hens during different egg-laying periods
Heliyon, 2021 Ca and P metabolic disorders during the egg-laying period can reduce egg production, impair eggshell quality, and even cause bone problems in hens; however, little is known regarding the capacity of duodenal and nephritic Ca and P absorption.
Jishuang San +6 more
doaj +1 more source
Participatory breeding system for laying hens [PDF]
, 2010 Livestock breeds (and breeding systems) developed for intensive production systems often do not perform as expected in organic and extensive systems.
Leenstra, Ferry
core
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
BMC Genomics, 2022 Background In the late phase of production, ducks untimely cease laying, leading to a lower feed conversion. Liver plays a vital role in the synthesis and transport of yolk materials during egg formation in birds.
Xue Du +7 more
doaj +1 more source
Poultry Science, 2022 : Egg laying is an important reproductive behavior of female poultry. Here, we investigated the laying behavior and clutch traits of different goose breeds, specifically, Zhedong white geese (Anser cygnoides), Sichuan white geese (Anser cygnoides) and ...
Qiang Bao +7 more
doaj +1 more source
Potential of LCA for designing technological innovations – the case of organic eggs [PDF]
, 2009 Ecological sustainability in agriculture is a concept that contains various environmental problems, which are caused by emission of pollutants and unsustainable use of limited resources, during different processes along the food chain.
Aarnink, A.J.A. +3 more
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FEBS Letters, EarlyView.Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii +8 more
wiley +1 more source
Revista Brasileira de Zootecnia, 2019 Two trials were carried out to evaluate the effect of groups of organic minerals with different chemical characteristics on the performance, egg quality, biometry of digestive organs, and bone quality of laying hens in the first and second laying cycles.
Maria Rogervânia Silva de Farias +5 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