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Costs and benefits of temporary egg desertion in a rocky shore frog with male-only care
(Springer, 2016)
Egg attendance imposes costs on parents, including decreased food intake and increased mortality risks. By concentrating parental activities when egg predation is greater and abiotic conditions are less stressful, parents ...
Effect of host egg age on preference, development and arrestment of Telenomus remus (Hymenoptera: Scelionidae)
(Institute of Entomology, 2020)
Estimates of genetic parameters, and cluster and principal components analyses of breeding values related to egg production traits in a White Leghorn population
(Poultry Science Assoc Inc, 2011-10-01)
The objectives of this paper were to identify the phenotypic egg-laying patterns in a White Leghorn line mainly selected for egg production, to estimate genetic parameters of traits related to egg production and to evaluate ...
Effects of amylin on egg quality traits of hens during the early laying period
(Brazilian Journal of Animal Science, 2023)
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 ...
Comparison of intestinal response of chicks from light and heavy eggs to posthatch fasting
(2011-04-20)
The effects of posthatch fasting on villi height and number, crypt depth and number of globet cells in duodenum, jejunum and ileum of broiler chicks from heavy and light eggs were compared. The 2×3×3 factorial design (egg ...
Trophic eggs in the foam nests of Leptodactylus labyrinthicus (Anura, Leptodactylidae): An experimental approach
(2005-10-01)
The South American pepper frog, Leptodactylus labyrinthicus, is a large species that lays eggs in foam nests in holes dug out of the banks of different bodies of water. Recently, it was reported that only 6-10% of eggs are ...
Maternal care in a neotropical jumping spider (Salticidae)
(Wiley-Blackwell, 2008-11-01)
Although female jumping spiders (Salticidae) often stay with their egg sacs, little is known about whether this behaviour is effective in improving offspring survival. Females of the jumping spider Psecas chapoda (Salticidae) ...
Rhodocyclus gelatinosus biomass for egg yolk pigmentation
(Poultry Science Assoc Inc, 2004-09-01)
Biomass of the photosynthetic bacterium Rhodocyclus gelatinosus was used at different levels in laying hens' rations as a xanthophyll source. Sixty-four hens were used in the experiment that investigated the effects of ...