OBJECTIVE This study estimated the genetic parameters for body weight gain and growth curve parameter traits in Korean native chicken (KNC). METHODS A total of 585 F1 chickens were used along with 88 of their F0 birds. Body weights were measured every 2 weeks from hatching to 20 weeks of age to measure weight gain at 2-week intervals. For each individual, a logistic growth curve model was fit...

one hundred and seventy four ghezel and 130 mehraban weaned male lambs were utilized to study the effect of on post weaning growth on slaughter weight and carcass traits. the lambs in each breed were randomly assigned to predetermined slaughter weight groups of 30, 40 or 50 kg and were so far fattened as to reach their assigned slaughter weights. the average post weaning daily gain was estimate...

this research was conducted to compare the effects of two medicinal plants (peppermint and aloe vera) and antibiotic growth promoter on ileum microflora population and growth performance of broiler chickens. in this experiment, 375 one-day old male broiler chickens (ross 308) were used on a completely randomized design with 5 dietary treatments which were replicated 5 times with 15 birds per re...

Background: Gestational weight gain is an impressive factor in the fetal outcome. Intrauterine growth restriction (IUGR) is one of the most important problems during fetal period that may lead to many perinatal and long-term complications and growing neonatal morbidities and mortalities. The aim of the study was to ascertain the relationship between umbilical cord blood leptin concentration and...

Human growth is driven by both basic cell processes as well as hormones, in particular the growth hormone (GH)-insulin-like growth factor (IGF)-1 axis. Understanding how these mechanisms are coordinated is not only critical to achieving a normal growth rate, but also to recognising potential new causes of disordered growth and how they might be treated. We have demonstrated in healthy children ...

this study was investigate the effects of two levels of metabolism energy (me) and length of fattening periods on performance and growth characteristics of chalishtori male lambs. 64 ram lambs were weaning and intake diets with two levels of energy include: 2.5 and 2.3 mcal me/kg dm in 90 and 120 days fattening period. in this study used of completely random designs with 2×2 factorial methods (...

BACKGROUND Adequate nutrient supply is essential for optimal postnatal growth in very low birth weight (VLBW, birth weight<1,500 g) infants. Early growth may influence the risk of metabolic syndrome later in life. OBJECTIVE To evaluate growth and blood metabolic markers (adiponectin, leptin, and insulin-like growth factor-1 (IGF-1)) in VLBW infants participating in a randomized nutritional in...

BACKGROUND Despite the current obesity epidemic, maternal underweight remains a common occurrence with potential adverse perinatal outcomes. METHODS We aimed to investigate the relationship between weight gain during pregnancy, and fetal growth in underweight women with low and late fertility. Women body mass index (BMI), defined according to the World Health Organization's definition, gestat...