BIOL3045 Lecture Notes - Lecture 23: Rhesus Macaque, Gluconeogenesis, Ketone
3 Jul 2018
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Animal Ecological Physiology BIOL3045 460381099
Lecture 23: Nutritional ecology.
Amounts based nutritional geometry WILD: Utilisation and consequences.
• Borneo orangutans - Measure physiology by lab analysis or urine. Determine amounts of
biomolecules present (i.e. ketones, c-peptides, 3-methylhistidine). Fats and carbs are limited,
protein food sources are always available. Low protein consumption = High c-peptide
concentration (gain fat). High protein consumption = high ketone concentration (burn body fat,
muscle loss). Depending on fruit availability, there is a gaining body fat and losing body fat cycle.
The presence of 3-methylhistide indicates a balance muscle breakdown and growth. Thus, this
shows that gluconeogenesis is occurring, using amino acids in energy metabolism (same as
generalist locusts). Gluconeogenesis also allows for them to maintain lactation regardless of fruit
availability.
• Golden snub nose monkey – Strong evidence for adaptive target tracking for thermoregulation.
Extra thermoregulatory requirements of winter match the increase of energy eaten.
• Rhesus macaque – Prioritize total amount of energy by overeating difference in protein, or
carbs. When lactating the females will eat more, so the total energy line is raised.
Document Summary
Amounts based nutritional geometry: borneo orangutans - measure physiology by lab analysis or urine. Wild: utilisation and consequences. biomolecules present (i. e. ketones, c-peptides, 3-methylhistidine). Fats and carbs are limited, protein food sources are always available. Low protein consumption = high c-peptide concentration (gain fat). High protein consumption = high ketone concentration (burn body fat, muscle loss). Depending on fruit availability, there is a gaining body fat and losing body fat cycle. The presence of 3-methylhistide indicates a balance muscle breakdown and growth. Thus, this shows that gluconeogenesis is occurring, using amino acids in energy metabolism (same as generalist locusts). Gluconeogenesis also allows for them to maintain lactation regardless of fruit availability: golden snub nose monkey strong evidence for adaptive target tracking for thermoregulation. Extra thermoregulatory requirements of winter match the increase of energy eaten: rhesus macaque prioritize total amount of energy by overeating difference in protein, or carbs.
