A total of 1 200 broiler breeder eggs were collected from a commercial flock at the hen age of 37 weeks and divided into storage treatments of 5 and 15 days. Prior to storage, the eggs were further divided into pre-storage incubation (PRESI) 0 (control), 4 and 8 h treatments. Eggs in the 4 and 8 h PRESI treatment were incubated at a standard dry-bulb temperature of 38.0°C. All eggs were weighed...

The study was carried out to determine the effects of the parental age and egg weight of Japanese quail on the weight of one day old chick, fertility and hatchability of incubated eggs. Three hundred and sixty Japanese quail eggs were obtained from 22 and 36 weeks old quails. The eggs were weighed and grouped into 2 categories: Light (7.5-9.5g) and Heavy (9.6 – 12g). The weight of the chicks we...

The aim of this study was to evaluate the effect of environmental factor such as month and season on the hatching features of ducks, and to determine the suitable months or season for hatching. For this purpose, the hatching records of different duck breeds raised in ElSerw water fowl farm belonging to Turkey and Water Fowl Breeding Research Department, Animal Production Research Institute, fro...

Broiler hatching eggs from two young (30 and 31 wk) or two old (52 and 53 wk) breeder flocks were stored for 3, 7, or 14 d at 18 C and 75% RH while being turned 0, 4, or 24 times per day in two experiments. Apparent fertility and hatchability of total eggs differed with flock age in both experiments, but the effect was greater in Experiment 1. Hatchability of total and fertile eggs were decreas...

Hatchability is a complex age dependent trait. It comprises of several sub-traits which are susceptible to genetic and environmental factors arising from various sources. This review examines the genetic basis of egg production, fertility and egg quality traits and how these relate with hatchability. We suggest that both sire and dam genetic components are important in overall hatchability most...

This study aimed to characterize production and reproduction performances in Rhode Island Red-White strain chicken developed and maintained at the Central Avian Research Institute, Izatnagar. Three hundred and forty six fertile eggs were set in automated electric incubation and 234 chicks were investigated in three hatches. The performance data was analyzed by least squares analysis of variance...

Two trials were conducted each using 240 Chinese Ringneck pheasant breeder hens (Phasianus colchicus torquatus) to determine the economics of feeding various levels of Brewers Dried Grains (BDG) on egg production, fertility, hatchability, and feed consumption. Four treatment diets containing 0, 15, 30, and 45% BDG were fed to 3 replicate pens each, beginning 1 week prior to the onset of lay. Eg...

the experiment was carried out in poultry experimental station belonging to nrc, cairo, egypt. a total of 120 fayoumi layers, 45 weeks old, were randomly divided into four equal groups. each group included three replicates (10 hens in each). the first group was fed the control diet containing 3.3% gram ca, whereas, the other three received diets containing 2.8, 2.6 and 2.4% gram ca, respectivel...

the study was conducted to determine the effects of turkey (meleagris gallopavo)egg weight on certain egg traits and hatching performance. a total of 178 turkey eggs comprising of three different egg weight groups below 60 g (g i), 61 to 69 g (g ii) and above 70 g (g iii) were used for this study. average egg weight (g), egg length (cm), egg breadth (cm) and egg volume (cm3) values increased wi...

Poultry production at all scales of operation is wholly dependent on the supply day-old chicks. Two important factors that have a significant impact chicks are fertility and hatchability. Hatchability proportion fertile eggs actually hatch, whereas refers to incubated. Understanding elements affect hatchability important. Breeds, diet, age hens, environmental stress, egg weight, shell thickness...