Growth and early laying performance of a broiler parent stock in an open-sided house under restricted feeding

Abstract

An experiment was carried out with SHAVER Starbro broiler parent stock from one day old to the point of peak production to investigate the growth, early laying performance and their adaptability during brooding, growing and early laying periods. The experimental period was divided into five phases, phase I (0 -2 nd week), phase II (3 rd -8 th week), phase III (9 th -22 nd week), phase IV (23 rd -sexual maturity), phase V (sexual maturity to peak production). The experiment was carried out in an open sided house and management practices of birds were close to the recommendation of the broiler breeder. It may be concluded that it is possible to achieve standard body weight of SHAVER Starbro broiler parent stock under Bangladesh condition even sometimes with lower amounts of feed allocations as specified by breeder. The birds reach sexual maturity at 31 st week, later than the breeder's standard (23 rd week) and the persistency in peak production is shorter but egg weight ranges from 53g to 60g, suitable for hatching. Mycoplasmosis appears to be major health problem, affecting performance. Use of sand is not suitable as a litter material for the management, as the birds consume a lot of sand under restricted feeding program. It may be suggested that SHAVER Starbro broiler parent stock could be reared under Bangladesh condition for the production of hatching eggs.

The Phenotypic Performance of Kambro Crossbreeds of Female Broiler Cobb 500 and Male Pelung Blirik Hitam

“…Several factors were influencing the fluctuation of Kambro's egg productivity including nutrition, stress level, sperm fertility and egg fertility. Laying broiler productivity reaches its peak of laying cycle at the age of 23 weeks (± 6 months) (Rahman et al, 2015). Female Broiler Cobb 500 egg productivity in this research can be influenced by female age.…”

“…Main factor that influenced the fluctuation of egg productivity can be caused by ad libitum standard feed dietary. Rahman et al (2015) stated that ad libitum dietary can decrease egg productivity, minimizing egg hatchability and increasing mortality rate. Feed diet restriction must be implemented to limiting body weight growth, maximizing egg production and increase the female Broiler Cobb 500 fertility (Rahman et al, 2015).…”