, 2015 The objective of this study was to determine the potential of Indigofera sp shoot leaf meal to substitute soybean meal in poultry diet. One hundred and sixty laying hens of Isa Brown strain, at 30 weeks old were used in this study and kept in individual ...
R. Palupi +3 more
semanticscholar +1 more source
Avaliação dos Impactos Econômicos, Sociais e Ambientais da Poedeira Colonial Embrapa 051 [PDF]
The limited resources for agricultural research and the need for a better knowledge about the ways that technologies change agribusiness competitiveness and its social and natural environment, demand its impacts assessment.
Girotto, Ademir Francisco +4 more
core +1 more source
Haltungsbedingungen, Leistung und Gesundheit von gängigen Legehennen-Genotypen in Öko- und Freilandhaltungen in Frankreich, der Schweiz und den Niederlanden [PDF]
, 2015 In Switzerland, France and The Netherlands 257 farmers keeping free ranging laying hens (organic and conventional) were interviewed with regard to genotype of the hens, management conditions and performance.
Bestman, Monique +3 more
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Interactions between Behaviour and Genetics in Wild and Domestic Bird Populations [PDF]
Personality traits can be favoured by both natural and artificial selection, if they result in increased fitness or productivity, and therefore play an important role in both wild and domestic populations.
Oers, K., van, Rodenburg, T.B.
core +1 more source
Effect of bird age and storage system on physical properties of eggs from brown laying hens [PDF]
, 2010 A total of 108 eggs from a group of 100 brown laying hens housed in standard cages were analyzed. Thirty-six eggs were retired when the hens had 30 week of age, other 36 eggs were retired when the hens had 35 week of age and the remaining 36 eggs were ...
Buxade Carbo, Carlos +4 more
core +1 more source
The Isoleucine Requirement of the Laying Hen
Poultry Science, 1954 Abstract WHILE the requirements of the chick for the essential amino acids are known to a considerable extent those of the laying hen have been established only for trytophan, lysine, methionine and cystine (Ingram et al., 1951a, b) and leucine (Cravens, 1948).
H. R. Bird +3 more
openaire +2 more sources
Effects of Antioxidants, DPPD and BHT, on Health, Production and Reproduction of Laying Hens [PDF]
, 1957 T. E. Shellenberger +2 more
openalex +1 more source
Effects of Cage Stocking Density on Feeding Behaviors of Group-Housed Laying Hens [PDF]
, 2005 Although quantification of animal welfare continues to be a challenging task for both the animal agriculture industry and the scientific community, characterization of feeding behavior has been shown to be a good indicator of animal welfare.
Cook, Rachel +3 more
core +2 more sources
Choline in the Nutrition of Laying Hens
Poultry Science, 1946 Abstract Lucas, Norris and Heuser (1946) have reported observations on the choline requirements of hens. We have carried out an experiment of similar nature with results pointing in the same direction. New Hampshire pullets which had been in production for approximately six months were transferred to laying cages and given an adjustment period ...
R. C. Ringrose, H. A. Davis
openaire +2 more sources
Akzeptanz einer gekeimten 50:50 Saatwicken: Weizen Mischung als Futtermittel für Legehennen [PDF]
, 2017 Common vetch (Vicia sativa L.) seeds are rich in protein and have shown stable yields under organic cultivation, but contain considerable amounts of anti-nutritional factors (ANFs).
Baldinger, Lisa
core