Leg problems in broiler chickens may partly be prevented by providing optimal circumstances for skeletal development during incubation. One of the factors demonstrated to affect bone development is eggshell temperature (EST), which provides a reliable reflection of embryo temperature. The present experiment aimed to investigate the effect of EST on development and asymmetry of the femur, tibia,...

An initial study investigated the nutritional value of a high ash m a t and bone meal (MBM) in terms of proximate amposition, true amino acid (AA) digestibility and in vitro protein digestibility as well as available energy for poultry. Chemical analyses showed consistent contents of most nutrients in high ash MBM fiom batch to batch except for a small variation in contents of fat and ash. On a...

there is nothing quite so helpless in this world as a baby broiler chick which has been snatched from the warmth of its surrogated mother, carted umpteen kilometers in a box dumped unceremoniously in a broiler shed and then told to get on with the job of making the boss a wealthy man. yet within the space of 14 days, that same chick, under optimum conditions, will have increased its day-old bod...

The study aimed to investigate the effect of in ovo (IO) leptin injection on yolk sac concentration, embryo development, blood lipid metabolism, and biochemical parameters broiler chicks during early post-hatching period. Hatching eggs were weighed placed an incubator with 100 eggs/4 replications/group. groups were: non-injected group (C); 3 injected μl phosphate buffer solution (PBS); 0.5 (L0....

The effects of in ovo Peptide YY (PYY) administration on growth and feed conversion ratios in a commercial broiler line were investigated. Six hundred Ross male x Cobb female eggs were administered either 0.9% saline (control) or 600 microg/kg egg weight PYY in ovo at Day 18 of incubation. On day of hatching, 210 birds from each treatment group were randomly placed by sex into pens. Body weight...

a 3×3 factorial arrangements experiment was conducted to evaluate the effect of fennel extract and vitamin d3 on performance, hatchability, chick quality characteristics and immunity. this experiment was done with using 360 ross 308 broiler breeders after molting (84 - 92 weeks) in a completely randomized design with three levels (0, 50, and 100 mg/kg of diet) of fennel extract and three levels...

Metabolic, immune, and physical status of chicks can impact the incidence of morbidity and mortality of broilers during the first week of production. Assessments of chick quality are made primarily by subjective observations with few quantitative measurements. Given a better understanding of how broiler breeder hen age and nutrient intake may influence progeny physiology, certain actions can be...

The quality of the day-old broiler chick is foremost in the minds of many poultry managers. From fertilised ovum to the placement at the broiler farm, some factors such as the characteristics of the incubating eggs, the egg holding conditions, the incubation conditions and the conditions that exist between hatching and placement at the farm and their interactions may affect chick quality. It ma...

The modern broiler and breeder are performing at levels never seen before. In order to multiply by 15x (or more) their bodyweight in just four weeks, they do not have the time to correct the effects of nutritional deficiencies. In a recently published paper coming from the University of Alberta, the effect of genetic selection was studied using unselected strains from 1957, 1978 and a 2005 comm...

This study was undertaken to determine if pre-storage heating of broiler breeder eggs, stored for long periods, would improve the hatchability and chick quality. A total of 2400 broiler breeder eggs were obtained from a 46 weeks old commercial flock. Eggs were distributed in a 3 x 4 factorial design, with three pre-storage heating durations (0, 6, and 9 hours at 37.5° C and 56% RH) and four sto...