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Effect of dietary chelated copper and methionine and cysteine on performance, egg quality, and nutrient balance in brown laying hens from 20 to 49 wk old
(2019-06-01)
Using 960 brown laying hens from 20 to 48 wk of age, in a 4 × 5 factorial arrangement, the effects on production, quality of eggs, and nutrient balance of analysed 18, 41, 61, and 111 mg kg−1 of copper (Cu) and of 0.550%, ...
Salmonella Enteritidis infection, corticosterone levels, performance and egg quality in laying hens submitted to different methods of molting
(2019-10-01)
In commercial layer poultry farming, molt induction is an important tool used by egg producers to prolong the production cycle of laying hens. Conventional molt induction programs involve total feed withdrawal, which raises ...
Effect of organic selenium and zinc on the performance and egg quality of Japanese quails
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2011-06-01)
The present study aimed at evaluating the effect of the dietary inclusion of organic trace minerals selenium and zinc on the performance and internal and external egg quality of Japanese quails submitted to heat stress. ...
Egg production in relation to paternal weight in a freshwater caridean shrimp (Decapoda)
(Wiley Blackwell Publishing, Inc, 2019-04)
In diverse invertebrate species, sperm quantity and quality are positively correlated with male size, egg fertilization rates being consequently affected by paternal weight. This factor may also have an indirect effect on ...
Egg quality during storage and deposition of minerals in eggs from quails fed diets supplemented with organic selenium, zinc and manganese
(Sociedade Brasileira de Zootecnia, 2011-12-01)
Three experiments with Japanese laying quails were performed aiming to assess the effect of supplementation with minerals in organic form on the egg quality during storage and the deposition of minerals in eggs. The ...
Egg quality during storage and deposition of minerals in eggs from quails fed diets supplemented with organic selenium, zinc and manganese
(Sociedade Brasileira de Zootecnia, 2011-12-01)
Three experiments with Japanese laying quails were performed aiming to assess the effect of supplementation with minerals in organic form on the egg quality during storage and the deposition of minerals in eggs. The ...
Effects of energy and protein levels on egg quality and performance of laying hens at early second production cycle
(Poultry Science Assoc Inc, 2006-03-01)
One hundred sixty-two commercial 70-wk-old ISA Brown laying hens, previously subjected to induced molting by feed restriction, were distributed in a completely randomized design with 3 x 3 factorial arrangement (i.e., 3 ...
Effects of energy and protein levels on egg quality and performance of laying hens at early second production cycle
(Poultry Science Assoc Inc, 2006-03-01)
One hundred sixty-two commercial 70-wk-old ISA Brown laying hens, previously subjected to induced molting by feed restriction, were distributed in a completely randomized design with 3 x 3 factorial arrangement (i.e., 3 ...
Effects of energy and protein levels on egg quality and performance of laying hens at early second production cycle
(2006-01-01)
One hundred sixty-two commercial 70-wk-old ISA Brown laying hens, previously subjected to induced molting by feed restriction, were distributed in a completely randomized design with 3 × 3 factorial arrangement (i.e., 3 ...
Protein, methionine+cystine and lysine levels for Japanese quails during the production phase
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2005-03-01)
An experiment was conducted at Faculdade de Medicina Veterinária e Zootecnia/Unesp - Botucatu for 168 days to evaluate the effects of protein, Met + Cys and lysine diet levels on egg production and egg quality of laying ...