Fats present in the egg yolk are themain source of energy for the developing chick embryo
(Freeman and Vince, 1974). It was shown that alteration in the fatty acid profile of yolk
fat decreased chick embryonic survival (Donaldson and Fites, 1970). Dietary cyclopropene
fatty acids (i.e. sterculic andmalvalic acids) are examples of the fatty acids that significantly
decrease the hatchability of eggs supposedly by increasing the ratio of stearic (C18:0) to oleic
acid (C18:1, n−9) in the egg yolk (Donaldson and Fites, 1970). Similar to cyclopropene
fatty acids, adverse effects on hatchability of fertile eggs were observed when conjugated
linoleic acid (CLA) was fed in a low-fat diet (Aydin et al., 2001).
Fats present in the egg yolk are themain source of energy for the developing chick embryo(Freeman and Vince, 1974). It was shown that alteration in the fatty acid profile of yolkfat decreased chick embryonic survival (Donaldson and Fites, 1970). Dietary cyclopropenefatty acids (i.e. sterculic andmalvalic acids) are examples of the fatty acids that significantlydecrease the hatchability of eggs supposedly by increasing the ratio of stearic (C18:0) to oleicacid (C18:1, n−9) in the egg yolk (Donaldson and Fites, 1970). Similar to cyclopropenefatty acids, adverse effects on hatchability of fertile eggs were observed when conjugatedlinoleic acid (CLA) was fed in a low-fat diet (Aydin et al., 2001).
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