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Mortality, production and quality of eggs of different rearing systems
(2018-07-01)
The conventional production of eggs in cage systems is intense and compromises the laying hens welfare. More demanding consumer markets have been pushing to abolish the use of cages and thus provide better welfare in poultry ...
A parental care-mating dilemma? Potential risks for offspring in the Pholcid spider when egg-carrying females accept mating
(Springer/Plenum Publishers, 2017-03)
Many species face a trade-off between additional mating opportunities and the offspring benefits (viability, quality) provided by parental care. Female Holocnemus pluchei spiders must abandon their egg-sac, which they ...
Performance and egg quality of Japanese quails submitted to cyclic heat stress
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2012-03-01)
Aiming at evaluating the influence of cyclic temperatures on the performance and egg quality of Japanese quails an experiment was carried out with 480 birds after egg production peak. Birds were housed in a bioclimatic ...
Performance and egg quality of Japanese quails submitted to cyclic heat stress
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2012-03-01)
Aiming at evaluating the influence of cyclic temperatures on the performance and egg quality of Japanese quails an experiment was carried out with 480 birds after egg production peak. Birds were housed in a bioclimatic ...
Effect of dietary organic selenium and zinc on the internal egg quality of quail eggs for different periods and under different temperatures
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2011-03-01)
The objective of this study was to evaluate the internal quality of eggs of Japanese quails fed diets supplemented with chelated selenium and zinc. The experiment was carried out for 120 days, and 144 birds were divided ...
Effect of dietary organic selenium and zinc on the internal egg quality of quail eggs for different periods and under different temperatures
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2011-03-01)
The objective of this study was to evaluate the internal quality of eggs of Japanese quails fed diets supplemented with chelated selenium and zinc. The experiment was carried out for 120 days, and 144 birds were divided ...
Determination of residual enrofloxacin in eggs due to long term administration to laying hens: Analysis of the consumer exposure assessment to egg derivatives
(Elsevier, 2021-07)
The use of the antibiotic enrofloxacin (ENR) in poultry is controversial. A high-performance liquid chromatography coupled to fast-scanning fluorescence detection (HPLC-FSFD) method for the determination of ENR in egg ...
Seasonal variation in the egg morphology of the copepod Eurytemora americana and its relationship with reproductive strategy in a temperate estuary in Argentina
(Oxford University Press, 2012-01)
Seasonal variation in the morphology of Eurytemora americana eggs and its relationship with reproductive strategy were studied in the Bahía Blanca Estuary. Eggs from field females were analysed morphologically by optical ...
Social monogamy and egg production in the snapping shrimp Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil
(2017-11-01)
This study tested for social monogamy in Alpheus brasileiro Anker, 2012. We also analysed egg production in this species. Sampling was conducted bimonthly from March 2013 to January 2014, and specimens were collected ...