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Correlations between thermal environment and egg quality of two layer commercial strains
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2008-06-01)
Heat stress limits the productivity of laying hens, as reflected by egg production and egg quality. The present study aimed at showing the correlations between egg quality parameters and environmental variables recorded ...
Correlations between thermal environment and egg quality of two layer commercial strains
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2008-06-01)
Heat stress limits the productivity of laying hens, as reflected by egg production and egg quality. The present study aimed at showing the correlations between egg quality parameters and environmental variables recorded ...
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, 2014)
Morphological types and seasonal variation in eggs of zooplankton species from bottom sediments in Bahia Blanca Estuary, Argentina
(Universidade de Sao Paulo. Instituto Oceanografico, 2006-12)
Resting egg production is a survival mechanism in zooplankton species against adverse environmental conditions. Egg accumulation in the upper layer of the bottom sediments is fundamental to the resurgence of the populations ...
Trichogramma pretiosum parasitism of Pseudoplusia includens and Anticarsia gemmatalis eggs at different temperatures
(ACADEMIC PRESS INC ELSEVIER SCIENCESAN DIEGO, 2013-08-02)
Egg parasitism of Trichogramma pretiosum strain RV when presented with eggs of Anticarsia gemmatalis and Pseudoplusia includens was investigated at 18, 20, 22, 25, 28, 30 and 32 degrees C. The number of eggs parasitized ...
Raising of horn fly haematobia irritans (L.) (diptera: muscidae) in laboratory by means of egg and larva inoculation
(Scientific Research, 2014)
Several studies have required Haematobia irritans (L.) raising in laboratory. The present study assessed two methods of inoculating immature forms of H. irritans to obtain adults. In 2007, 15 Nellore steers (Bos indicus) ...
Effect of dietary energy concentration on performance parameters and egg quality of white leghorn laying hens
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2014-12-01)
An experiment was carried out with 1200 23-week-old white Dekalb commercial laying hens to investigate production responses, egg quality, and energy utilization of laying hens fed different dietary energy levels at the ...
Quantitative exposure assessment and risk characterization for fipronil residues in laying hen eggs
(Wiley Blackwell Publishing, Inc, 2022-05)
Poultry production is linked to veterinary drug use to treat diseases. Few ectoparasitic compounds are approved for poultry. Fipronil is a pesticide widely used in agriculture. It is also a drug authorized to control ...
Egg pecking and puncturing behaviors in shiny and screaming cowbirds: effects of eggshell strength and degree of clutch completion
(Springer, 2017-04)
Abstract: Shiny cowbirds (Molothrus bonariensis) are generalist brood parasites that use hosts varying in body and egg size. On the contrary, screaming cowbirds (M. rufoaxillaris), which are larger than shiny cowbirds, are ...
Inclusão de ovo desidratado em rações para frangos de corte nas fases pré-inicial e de crescimento
(2008-07-01)
The experiment was carried out to determine the optimum inclusion level of dried egg powder (DEGG) in the pre-initial and growing rations of broilers. Male Cobb-500 chicks (n= 1,152) with initial live weight of 43.46 ± ...