2001, Number 3
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Vet Mex 2001; 32 (3)
Selenium content correlation between hen feed and egg yolk
Morales LR, García MAR, Rosiles MR
Language: English/Spanish
References: 11
Page: 225-227
PDF size: 26.64 Kb.
ABSTRACT
In order to complete the present study, an analysis of selenium concentration in feed and egg yolk of laying hens was conducted. This experiment lasted fifty eight weeks of the laying period. Selenium content was analyzed eleven times according to the established sampling period. Adequate selenium level in feed was found only on the 40th and 52nd weeks (233.6 and 246.9 ppb), and it was reflected in the egg yolk (349 and 319 ppb). Correlation index was r = 0.41, which means that only 41% of the yolk selenium content was detected. This low correlation index may well have been conditioned, because low selenium concentration in feed is not enough to fit body needs, and only once the needs are full fitted. Selenium remaining may be used to increase yolk selenium content. Whenever laying hens received adequate selenium in feed, their yolk egg contained a good source of selenium which is good for consumers.
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