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Feed on the quality of animal products: the quality of feed and milk

) Reported vitamin additives dairy cow test results, the beginning of cows grazing in the carrots and vitamin A, b elements contents were 250pg/kg and 660 ~ g / kg, feed additives,timberland portugal, veterinary Jilin vitamin A milk after three weeks Vitamin A content in the control group was 860 ~ g / kg, experimental group 1440vg/kg h carrot milk to maintain the original level of cable content. Milk throughout the trial period content of vitamin A cable, the experimental group was twice the control group. Zoteev. V. S. (1985) d} H trials will be like the results. Tests showed that in summer when cows fed with fresh grass. Per kg milk vitamin A content of up to cable 2014IU. When winter green feed supply. Cable milk vitamin A content decreased 5O, to improve the milk business Ge Ran living index value must be selected good quality hay,glätteisen ghd, silage and dairy cow feeding carrots to fight. When the cows to increase dietary vitamin D, vitamin E and vitamin C content of the time. Can be a corresponding increase in the content of their milk. In order to regulate body calcium and phosphorus metabolism in lactating cows milk into the guarantee q, vitamin D content of lactating cows grazing in addition require frequent or exercise outdoors, to accept outside El irradiation. And of good quality hay fed to dairy cows to meet the needs of vitamin D Zhen cable. Dairy cow rumen microbial role in the family can synthesize vitamin B cable. Taipa this. Feed B vitamins do not directly affect the milk vitamin B cable flag content. Milk contains vitamin B is less, fed feed containing vitamins and more. Milk vitamin B 'the amount is not increased. However. Fed with living index number of feed, milk is not the amount of living index increased Bl. However, cows fed its population living index containing more than B2 when high quality forage. Vitamin B content of milk to increase (Mor ~ son.F.B.1959) of milk containing a small amount of vitamin c, fed with vitamin C and more cable feed. Will not increase the milk content of vitamins (Morrison, F.B.1959). Second, feed and feed on milk flavor or odor of the milk, the impact of wind gaze from the fifties onwards Krukovsky, Stull, Morrison, F. B, who already had a number of studies. Wind ignorant of milk refers to milk Cardiff body odor, taste and relevance of the three parts of the FJ. The smell of fresh milk by the combination of volatile substances produced by several milk contains trace amounts of acetone, methyl ethyl ketone, n a hexane, a one pentane, methyl sulfide, acetaldehyde, ethanol, ethyl acetate, delta lactone Classes and shuttlecock towel smell of fresh milk, pay attention a fluorescence; Xin free short-chain fat acids (pyruvate, milk steep,Converse pas cher, etc.) and milk aroma-related; the taste of fresh milk (sweet ignorance, ignorant of salty, sour ignorance, bitter ignorant, etc.) and the lactose contained in milk, milk fat,tory burch reva, vitamins, salts, citric acid, rubber, phosphoric acid, magnesium, calcium substances; El was evaluated by the appropriate P eye cream milk and milk protein content and dispersion For milk and milk fat globule protein particles of the size, freshness and dispersed evenly Sui. El on the fitness of both has important implications. Feed on milk fat, milk protein,true religion, mineral salts and vitamin content of the previously mentioned herein. In general, feed on milk flavor or odor effects. Is the result of certain substances through the blood into the breast. Thereby affecting the flavor of milk, onion and garlic, turnips, rape and cabbage and other cruciferous plants, ignorant of the volatile gas will affect the flavor of milk. 5 hours before the milking cows fed fresh alfalfa and legume silage, milk will be presented before the great smell of corn silage in the milking, green delete corn, rye and sweet potatoes also make milk with the odor. Alfalfa hay will be fed before milking infected odor. Cut into the pasture grazing cows, the milk will be with the smell of grass. The smell of the milk with a heated to 85C or so, through the ventilation. That is able to eliminate odor. Third, feed on milk quality of cows the other is a common commercial feed concentrate, vitamin supplements, mineral additives uniform emblem materials prepared with Taiwan. Sometimes for the purpose of treatment, feed; Pi claim to be added antibiotics or veterinary drugs. Because anti-pest and crop irrigation, pesticide residues often result in crop and chemical contamination. Pesticide residues. Veterinary drugs and other chemical contaminants, and often by the digestion and absorption into the milk to form a residue. Excessive residue material will endanger human health so baby, in addition to the crops. Limited use of organic chlorine, organic mercury and some strong toxic organophosphorus agents. Outside to prevent residue hazards. FAD and Wt {O is also limited, the use of drugs cows, at least 72 hours in withdrawal. Best after 96 hours before eating milk production Zhao. In addition. Dairy cow hormone drugs to be used with caution. Cadmium, lead and radioactive contaminated grass, can not be used as grazing land aflatoxin contaminated grain can not do dairy feed wide. Avoid contamination of milk and endanger human health.
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