Pituitary regulation of appetite and growth in the turtlesPseudomys scripta elegans andChelydra serpentina

✍ Scribed by Brown, Patricia Stocking ;Giuliano, Ralph ;Hough, Gerard

• Publisher: John Wiley and Sons
• Year: 1974
• Tongue: English
• Weight: 812 KB
• Volume: 187
• Category: Article
• ISSN: 0022-104X
• DOI: 10.1002/jez.1401870203

✦ Synopsis

Abstract

Eleven weeks of treatment with growth hormone (20 μg 3 times/wk) and prolactin (20 μg 3 times/wk) increased the size of immature Pseudomys scripta elegans beyond controls. Food consumption was controlled so that all effects of the hormones were direct ones on growth and not due to hyperphagia. Hypophysectomy decreased growth, food consumption and liver protein in Chelydra serpentina. Growth hormone replacement (20 μg/2 days) in hypophysectomized animals increased growth, food consumption, liver protein, liver water and decreased liver lipid and liver glycogen compared to hypophysectomized animals. In intact Chelydra serpentina, growth hormone (5 and 50 μg/2 days) also increased appetite, growth, liver protein, liver water and decreased liver lipid and glycogen. Blood sugar was not altered by growth hormone treatment.