نتایج جستجو برای: broiler parent stock
تعداد نتایج: 164499 فیلتر نتایج به سال:
BACKGROUND The aim of the present study is to evaluate whether the effects of a short, six session version of an evidence-based parent training programme (The Incredible Years), delivered in a non-clinical community sample in the northern Norway, are maintained 4 years following the initial intervention. METHOD Data were collected primarily from mothers in a randomized controlled trial (N = 1...
Distribution, management anD ProDuctivity of Poultry genotyPes in most developing countries, there are two parallel poultry industries: one using high-performing commercial layer or broiler genotypes; and the other based on lower-performing, dual-purpose indigenous breeds. the proportions in these two categories vary widely among countries, but in lower-income countries, indigenous stock compri...
Atmospheric ammonia inhibits broiler performance. Quantified effects are based on older genetic stock with a BW of 2000 g at 7 wk. In contrast, modern genetic stock reaches 3200 g at 7 wk of age. To assess the impact on present day broilers, 2 trials were conducted exposing male broilers to graded levels (0, 25, 50, and 75 ppm) of aerial ammonia from 0 to 4 wk of age. Sixty, 1-d-old chicks were...
Abstract The article analyzes technical solutions for separate feeding of chickens and roosters a broiler parent flock with the cage keeping breeder flock. It is noted that hens meat crosses adopted as process standard in industrial poultry. Failure to comply this requirement decreases percentage fertilized eggs, increases mortality, culling males problems replanting reserve roosters. Installat...
Parent training (PT) is an evidence-based treatment for reducing and preventing child conduct problems and abusive parenting. However, questions have been raised about the dissemination of PT to culturally diverse families who hold different views on childrearing. Group PT was applied in two Chinese immigrant families illustrating strategies for addressing potential cultural barriers. The Incre...
A study of Campylobacter jejuni on a broiler chicken farm between 1989 and 1994 gave an estimated isolation rate of 27% (3,304 of 12,233) from a 0.9% sample of 1.44 million broiler chickens from six to eight sheds over 32 consecutive rearing flocks comprising 251 broiler shed flocks. During the study, C. jejuni was found in 35.5% of the 251 shed flocks but only 9.2% (23 of 251) had Campylobacte...
Parent involvement (PI) in school is associated with more positive academic performance and social competence in children. However, there are inadequacies in current measures of PI and a need for a better understanding of predictors of PI. In this study, measures were obtained from a normative sample of 387 children in kindergarten and first grade from high-risk neighborhoods in 4 different sit...
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