Birds of N-3 PUFA classics kind after metabolization, main with phosphatide form deposit at musculature is not adipose organization in, and its deposition lifts along with what eat N-3 PUFA level and lift (Leskanich, 1997) . N-3 PUFA content is exorbitant will make birds muscle produces peculiar smell. To eliminate this adverse effect, can use a variety of methods. If be in,add fish oil while, the level that adds antioxidant and E of aggrandizement ration vitamin (raise the level of ration vitamin E 100IU/kg for instance) , fryer can the fish oil that raise feeds higher level (Pike, 1999) ; In addition, still can use replace, set limit to or phase add a way, control what the acid of fish oil is defeated to happen. If use the quantity such as flax seed oil or rapeseed oil to replace (8.2 ％ ) week or 2 weeks of 1 feeling that can improve chicken apparently watch fish oil character (Fritsche, 1991) . Miller (1993) with Nute (1996) a week before till appear on the market,the fish oil raise that adds 2 ％ in ration feeds a fryer stops hello, feeling view character did not produce fryer sarcous unwell. Miller (1993) the fryer that research raises, the content of the N-3 in its chest muscle and leg flesh PUFA is achieved respectively 94 milligram and 135 milligram / 100 grams muscle, had made a kind of typical flesh product in England, the daily and additional complement that advocates for the west of the N-3 of 1 gram PUFA prandial the implementation that make made contribution.
3. Ration of 2 eggs birds adds fish oil to be able to raise birds egg to be opposite the deposit of N-3 PUFA
Most experiment discovers, ration adds fish oil only the content of the N-3 in yolk of changeable birds egg and N-6 PUFA and scale, do not affect the content of cholesterol commonly. Egg chicken feed adds the purificatory fish oil of 3 ％ of 1.5 ～ , do not affect yoke total fatty acid and cholesterol content, but the content of the N-3 in egg yolk and N-6 PUFA produced marked change, the content of N-3 PUFA is remarkable and elevatory, the content of N-6 PUFA drops (Watkins, 1989; Phetteplace, 1989; Hargis, 1991; Anthony, 1992) .
When ration adds flax seed oil, egg chicken can use among them N-3 PUFA to synthesize DHA, but efficiency is inferior, the DHA content in birds egg is accordingly low; Dan Retian adds fish oil, fish meal or alga product, the content of the DHA in birds egg will rise significantly, and the taste that does not affect birds egg (Farrell, 1993; Maurice, 1994; Van Elswyk, 1995) . Maurice (1994) the fish oil that adds 3 ％ in ration or flax seed oil, determining standard birds egg (the weight of the egg all corrective for 60g) in the content of EPA is 43mg and 12mg respectively, the content of DHA is 220mg and 83mg respectively. Farrell (1993, 1998) the means that provided the content of the N-3 in how feeding yolk of egg of birds of fish oil general through raise PUFA to raise 1g above. After the mankind took food to contain a lot ofthe birds egg of N-3 PUFA, the scale of the N-6 in plasma PUFA and N-3 PUFA is reduced significantly (Leskanich, etc, 1997; Farrell, 1998) .
Previous 1 2 3 4 56 Next