Interrelationship of Body Weight, Egg Weight, and Age at Sexual Maturity
نویسندگان
چکیده
منابع مشابه
Comparison of Infants with Low Birth Weight and Normal Weight Regarding Anemia at the Age of 12 Months in Yazd
Introduction: Anemia is common in both age groups of 9-24 months and adolescence. Considering the fact that anemia in children is associated with various complications such as stunted growth, activity intolerance, behavioral changes, inattention, irritability and changes in the immune response, the aim of this study was to compare the frequency of anemia in infants with normal birth weight and ...
متن کاملEffect of hen age, body weight, and age at photostimulation. 1. Egg, incubation, and poult characteristics of commercial turkeys.
Turkeys from two BW groups (which averaged 11.8 and 12.9 kg, Normal and Heavy, respectively) were photostimulated at either 29 or 31 wk of age to determine what effects age-associated changes in hen carcass characteristics, egg weight, and egg components have on subsequent poult weight at hatching during the first 10 wk of production. Carcass measurements were determined from a subsample of hen...
متن کاملInheritance of Age at Sexual Maturity
Dr. RAYMOND PEARL (1912) was the first worker to suggest that sexlinked factors were involved in the inheritance of fecundity. PEARL used as a measure of fecundity the eggs produced during the winter period. He proposed that two major dominant factors were responsible for high egg production, one of which resided in the sex chromosome. GOODALE (1919) and HURST (1921) each failed to confirm the ...
متن کاملMedian ages at stages of sexual maturity and excess weight in school children
BACKGROUND We aimed to estimate the median ages at specific stages of sexual maturity stratified by excess weight in boys and girls. MATERIALS AND METHOD This was a cross-sectional study made in 2007 in Florianopolis, Brazil, with 2,339 schoolchildren between 8 to 14 years of age (1,107 boys) selected at random in two steps (by region and type of school). The schoolchildren were divided into:...
متن کاملThe Comparison of Gait Kinematics in Over-Weight and Normal-Weight People across Age Groups
Objective Obesity and overweight have changed to very important factors in people movements in the modern world. Therefore, the present study was carried out to examine the effects of overweight on gait kinematic factors in children, young adults, middle-aged, and older adults. Methods The present study was a causal-comparative study in which 40 participants aged 9-85 were selected based on pu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Poultry Science
سال: 1934
ISSN: 0032-5791
DOI: 10.3382/ps.0130267