Pituitary-Gonadal Relationships in Chickens Selected for High and Low Body Weight
نویسندگان
چکیده
منابع مشابه
Mapping QTL for growth and shank traits in chickens divergently selected for high or low body weight.
An F(2) population (695 individuals) was established from broiler chickens divergently selected for either high (HG) or low (LG) growth, and used to localize QTL for developmental changes in body weight (BW), shank length (SL9) and shank diameter (SD9) at 9 weeks. QTL mapping revealed three genome-wide QTL on chromosomes (GGA) 2, 4 and 26 and three suggestive QTL on GGA 1, 3 and 5. Most of the ...
متن کاملGenetic diversity and population structure in lines of chickens divergently selected for high and low 8-week body weight.
A long-term selection experiment for high or low 8-wk BW in White Plymouth Rock chickens was conducted to study effects of selection on BW and correlated characters. Two lines [high (HWS), low (LWS) weight] were established and have undergone 48 generations of selection. The lines were managed to curtail inbreeding and to maintain similar population structures; such is necessary for equitable c...
متن کاملChickens from lines artificially selected for juvenile low and high body weight differ in glucose homeostasis and pancreas physiology.
Artificial selection of White Plymouth Rock chickens for juvenile (day 56) body weight resulted in two divergent genetic lines: hypophagic low weight (LWS) chickens and hyperphagic obese high weight (HWS) chickens, with the latter more than 10-fold heavier than the former at selection age. A study was designed to investigate glucose regulation and pancreas physiology at selection age in LWS chi...
متن کاملTranscriptional analysis of the liver in juvenile broiler chickens divergently selected for high or low body weight
egg ω-3 content for the fl axseed diet (from 546 to 578 mg/60g egg; P=0.02) and for the Linpro diet (from 415 to 438 mg/60g egg; P=0.07). As well, an overall decrease (P=0.01) in ω-6 to ω-3 ratio (from 1.53 to 1.47) was noted. Enzyme addition increased (P=0.02) the NSP digestibility from 17.2 to 24.6%. There was no signifi cant effect of enzyme addition on total tract fat digestibility. Overall...
متن کاملQuantity of glucose transporter and appetite-associated factor mRNA in various tissues after insulin injection in chickens selected for low or high body weight.
Chickens from lines selected for low (LWS) or high (HWS) body weight differ by 10-fold in body weight at 56 days old with differences in food intake, glucose regulation, and body composition. To evaluate if there are differences in appetite-regulatory factor and glucose transporter (GLUT) mRNA that are accentuated by hypoglycemia, blood glucose was measured, and hypothalamus, liver, pectoralis ...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1968
ISSN: 0032-5791
DOI: 10.3382/ps.0470480