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- #31
"Gamebird Disease,A Gamebird Keeper's Guide" - out of UK.
“Slow absorption of yolk due to fasting has been reported...Moran and Reinhart (1980) observed that fasting led to a reduced uptake of yolk as compared to fully nourished birds. It was reported further that fasting favoured removal of moisture and lipid to a greater extent than protein while the converse was true if access to feed and water was permitted. Observations of Noy et al. (1996) also showed that yolk utilisation was more rapid in fed than in fasted chicks, suggesting that the transport of yolk through the intestine could be increased by the greater intestinal activity found in fed chicks.
Similar findings were observed by Santos and Silversides (1996) that starving chicks were unable to use the yolk sac nutrients, suggesting that yolk sac utilisation seems to be correlated with activation of the digestive system.”
"It is important to get birds to eat and not to rely on their yolk sac for two to three days. Birds need to eat to stimulate the use of their yolk reserves. I have a colleague who tells the story of visiting a unit to find no food out for the birds on day two, and on enquiring why he was told, ‘Well that’s what they have a yolk sac for isn’t it?’ if ever there was a fundamentally flawed rearing policy, that was it!"
This is the opposite of our methods of shipping @hatch bc they rely on yolk or leaving them in bator for x amt of time (exact amt I've seen varies from 24°-48° ) w/o foot or water.
“Slow absorption of yolk due to fasting has been reported...Moran and Reinhart (1980) observed that fasting led to a reduced uptake of yolk as compared to fully nourished birds. It was reported further that fasting favoured removal of moisture and lipid to a greater extent than protein while the converse was true if access to feed and water was permitted. Observations of Noy et al. (1996) also showed that yolk utilisation was more rapid in fed than in fasted chicks, suggesting that the transport of yolk through the intestine could be increased by the greater intestinal activity found in fed chicks.
Similar findings were observed by Santos and Silversides (1996) that starving chicks were unable to use the yolk sac nutrients, suggesting that yolk sac utilisation seems to be correlated with activation of the digestive system.”
"It is important to get birds to eat and not to rely on their yolk sac for two to three days. Birds need to eat to stimulate the use of their yolk reserves. I have a colleague who tells the story of visiting a unit to find no food out for the birds on day two, and on enquiring why he was told, ‘Well that’s what they have a yolk sac for isn’t it?’ if ever there was a fundamentally flawed rearing policy, that was it!"
This is the opposite of our methods of shipping @hatch bc they rely on yolk or leaving them in bator for x amt of time (exact amt I've seen varies from 24°-48° ) w/o foot or water.