This experiment was performed to evaluate the effect of in ovo injection carbohydrates, antioxidants, and their combination into stored incubating eggs. To conduct this research, 600 hatching eggs were selected for amniotic (on 17.5th embryonic day) from laying hens Cobb 500 strain after 14 days storage, hatching, they distributed a rearing period 5 treatments replicates completely randomised d...

This study investigates the effects of dietary lipid sources on the growth and reproductive performance of Nile tilapia over three consecutive spawnings. Fish were reared using three experimental diets, with the goal of replacing dietary fish oil with palm oil. Three experimental diets and a commercial   trout diet was used as the control. The effect of dietary lipid on the growth performance, ...

We studied the artificial incubation method of red swamp crayfish Procambarus clarkii embryos using cell culture plates. In first experiment, cleavage stage or egg-nauplius were individually cultured at 20°C in well plates with different water volumes per [12 (4 ml), 24 (2 48 (1 ml) and 96 (0.25 ml)]. second 12-well 15, 20 25°C. Almost all died without hatching. Egg-nauplius survived to hatch. ...

Ocean acidification is challenging phenotypic plasticity of individuals and populations. Calanoid copepods (zooplankton) are shown to be fairly plastic against altered pH conditions, and laboratory studies indicate that transgenerational effects are one mechanism behind this plasticity. We studied phenotypic plasticity of the copepod Acartia sp. in the course of a pelagic, large-volume mesocosm...

1. Akinci Z., Bayram I., 2003, Effects of poppy seed meal on egg production and hatching results in quail (Coturnix coturnix japonica). Res. Vet. Sci. 75, 141–147, https://doi.org/10.1016/s0034-.... CrossRef Google Scholar

the present study was carried out to investigate the replacement of soybean meal by different levels of canola meal (either with or without canola meal undergoing heat processing). two hundred forty commercial layer hens (lsl strain) at 54th week of age, selected based on the same egg production percentage and body weight. the experimental design was a crd, in a factorial arrangement of 4 repli...

BACKGROUND The aim of his study was to determine development time and thermal requirements of three myiasis flies including Chrysomya albiceps, Lucilia sericata, and Sarcophaga sp. METHODS Rate of development (ROD) and accumulated degree day (ADD) of three important forensic flies in Iran, Chrysomya albiceps, Lucilia sericata, and Sarcophaga sp. by rearing individuals under a single constant ...

The viability of freshly laid avian eggs declines after several days of exposure to ambient temperatures above physiological zero, and declines occur faster in tropical than temperate ecosystems. Microbial infection during preincubation exposure has recently been shown as a second cause of egg viability decline in the tropics, but whether microbial processes influence the viability of wild bird...

YPICALLY, mutant genes in homozygous condition are deleterious. The usual effect of mutant genes in heterozygous condition, however, is still a matter of controversy. The most convincing evidence for the position which holds that heterozygosity is usually harmful, is derived from work on lethals in heterozygous condition in Drosophila (STERN, CARSON, KINST, NOVITSKI and UPHOFF 1952; MULLER and ...

The environmental conditions experienced by parents influence next generations, with the parental nutritional status playing an important role in shaping offspring phenotypes. Our understanding of transgenerational effects diet on pathogen resistance is, however, poorly documented. We manipulated quality (i.e., mother, father, or both) and measured development survival after immune challenge se...