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Full-Text Articles in Poultry or Avian Science
Expression Of Lysine-Mediated Neuropeptide Hormones Controlling Satiety And Appetite In Broiler Chickens, Collins N. Khwatenge, Boniface M. Kimathi, Thyneice Taylor-Bowden, Samuel N. Nahashon
Expression Of Lysine-Mediated Neuropeptide Hormones Controlling Satiety And Appetite In Broiler Chickens, Collins N. Khwatenge, Boniface M. Kimathi, Thyneice Taylor-Bowden, Samuel N. Nahashon
Agricultural and Environmental Sciences Faculty Research
Lysine is the second most limiting amino acid after methionine and is considered the most limiting amino acid for growth in poultry. Lysine requirement for broiler chickens has changed over the years. Leptin and adiponectin represent 2 adipokines that mediate metabolism by eliciting satiety effects whereas ghrelin peptide hormone influences appetite. We hypothesize that this affects growth performance of chicks. This study evaluates the effect of varying dietary lysine homeostasis on performance of broiler chickens through satiety- and appetite-mediating hormones. In 3 replications, 270 one-day-old chicks were reared for 8 wk feeding on diets comprising 0.85, 1.14, and 1.42% lysine …
Transcriptional Analysis Of Abdominal Fat In Chickens Divergently Selected On Bodyweight At Two Ages Reveals Novel Mechanisms Controlling Adiposity: Validating Visceral Adipose Tissue As A Dynamic Endocrine And Metabolic Organ, Christopher W. Resnyk, Wilfrid Carré, Xiaofei Wang, Tom E. Porter, J. Simon, Elisabeth Le Bihan-Duval, Michel J. Duclos, Sammy E. Aggrey, Larry A. Cogburn
Transcriptional Analysis Of Abdominal Fat In Chickens Divergently Selected On Bodyweight At Two Ages Reveals Novel Mechanisms Controlling Adiposity: Validating Visceral Adipose Tissue As A Dynamic Endocrine And Metabolic Organ, Christopher W. Resnyk, Wilfrid Carré, Xiaofei Wang, Tom E. Porter, J. Simon, Elisabeth Le Bihan-Duval, Michel J. Duclos, Sammy E. Aggrey, Larry A. Cogburn
Biology Faculty Research
Background
Decades of intensive genetic selection in the domestic chicken (Gallus gallus domesticus) have enabled the remarkable rapid growth of today’s broiler (meat-type) chickens. However, this enhanced growth rate was accompanied by several unfavorable traits (i.e., increased visceral fatness, leg weakness, and disorders of metabolism and reproduction). The present descriptive analysis of the abdominal fat transcriptome aimed to identify functional genes and biological pathways that likely contribute to an extreme difference in visceral fatness of divergently selected broiler chickens.
Methods
We used the Del-Mar 14 K Chicken Integrated Systems microarray to take time-course snapshots of global gene transcription …