Chickens are kept in many parts of the world irrespective of climate, traditions, life standard, and there is no religious taboo related to consumption of eggs and chicken meat like those for pig meat [1]. To the poor majority people of rural areas, chickens serve as an immediate source of meat and income when money is needed for urgent family requirement [2]. It renders a significant contribut...

a two-year laboratory study on the biology (including self-fertilization) of bulinus truncatus, the intermediate host of schistosoma haematobium, s. bovis and paramphistomum microbotrium in iran, has revealed information on the longevity, reproduction, hatchability rate, hatching time during various months of the year, and growth and mortality rates of this snail. it was found that the reproduc...

Egg storage longer than 7 d is associated with a delay in hatch time and a decline in hatchability and chick quality. Prestorage incubation is suggested as a method to reduce the negative effects of prolonged storage times by altering the developmental stage of the embryo, but earlier research has shown that prestorage incubation can both be detrimental and beneficial for hatchability. The reas...

Poultry is one of the most important subsectors livestock, supplying a cheap source good quality animal protein in form meat and eggs. This study was conducted to assess egg fertility, hatchability parameters indigenous chickens Hulla, Aleta Wondo Dale districts, representing highland, midland lowland agroecologies, respectively. Six kebeles (two from each district) were purposively selected ba...

Two experiments were carried out to examine the interaction of egg storage period, egg position during storage, and turning frequency during subsequent incubation on fertile hatchability and embryonic mortality of broiler hatching eggs. Broiler hatching eggs from breeder flocks at 62 and 60 wk of age were stored for either 3 or 14 d at 18 degrees C and 75% RH in either the normal large end up o...

This study was conducted in the farm of Department Animal Production, college Agriculture –Tikrit University for duration 19/11/2021 to 23/12/2021. The aim this effect colour plumage and breeding system on traits reproductive Japanese quail Use experiment 180 A bird age 21 Days were divided into two groups according 90 brown Black birds, each group that raised systems (batteries floor). Contain...

The research was carried out in the poultry unit fields / Nineveh Research Department, to identify effect of four generations (1st , 2nd, 3rd and 4th) feather color groups (black, brown, desert white) female quail on their productive performance. results showed a significant improvement (P <0.05) through from 1st 4th egg production percentage weight eggs produced kg, increase for feed consum...