CN1290488A - Hydroxy methionine iron feed additives and its preparing method - Google Patents

Abstract

Hydroxy methionine iron as feed additive is prepared through the chelation of liquid hydroxy methionine and a kind of water solution of inorganic iron salt in the molar ratio of to 1-2 at the conditions of 50-100 deg.C temperature, pH 6-8 and normal pressure for 0.8-1.2 hr. It has high biological efficiency, can reduce the used amount of other additives, provide animal with trace element of iron and methionine.

Description

Hydroxy methionine iron feed additives and preparation method thereof

The present invention relates to a kind of hydroxy methionine iron feed additives and preparation method thereof.

Iron is a kind of humans and animals trace elements necessary, is at present to adopt the inorganic salts of iron as feed addictive, and animal absorbs must be by the various biological barrier, and its absorptivity is low, and addition is big, and biological value is low; Most of through the ight soil discharge, environment there is pollution; And these inorganic salts have destruction to vitamin isoreactivity material in the feed.The solid methionine of employing and inorganic iron are also arranged jointly as additive, with the nutrition of additional methionine, but the dissolving of solid methionine is relatively more difficult.

The object of the present invention is to provide a kind of animal absorption rate height, addition is little, the biological value height; Environmentally safe; Except that satisfying the nutrition of animal, also provide a kind of feed addictive and preparation method thereof of the nutrition of methionine for animal to trace elements iron.

The object of the present invention is achieved like this: feed addictive of the present invention is hydroxy methionine iron chelate (C ₅H ₈O ₃Fe).

Its preparation method is as follows:

1, the inorganic salt solution of liquid hydroxy methionine and iron is 1: 1～2 with mol ratio, and 50～100 ℃ of temperature, in the presence of NaOH, control pH value 6～8 reacted under the condition of normal pressure 0.8～1.2 hour, generated the hydroxy methionine iron chelate; Its reaction equation is as follows:

2, centrifugation, washing;

3, dry, pulverize, be packaged into finished product.

Because this chelated iron is to absorb by the amino acid approach in livestock and poultry alimentary tract, speed is fast, absorptivity improves greatly, the biological value height, can reduce the consumption of additive; The micro-element nutrition of improving animal had good facilitation; Except that the nutrition of the trace elements iron that satisfies animal, also provide the nutrition of methionine, so can promote the growth of animal for animal; Can also avoid the destruction of inorganic iron to vitamin isoreactivity material in the feed; Can significantly improve the utilization rate of feed.This hydroxy methionine chelate has stable chemical constitution, safety non-toxic, nonirritant.And, also can protect environment because the discharge rate of inorganic iron is little in the ight soil.Use the liquid hydroxy methionine to overcome the difficult shortcoming of solid methionine dissolving.This additive can be widely used in various animals: as pig, fowl, aquatic livestock etc.Through experiment, add 500 gram hydroxy methionine irons in the sow feed per ton and can make the piglet birth weight improve 6.0%～10.2%, the piglet hemoglobin improves 11.3～28.0%, and significantly improves piglet disease-resistant power and survival rate.Store pig is added the hydroxy methionine iron of 60～100 gram/tons, and daily gain in pigs can improve 4.0～8.1%, and feedstuff-meat ratio reduces by 3.8～5.8%, significantly reduce piglet white scour simultaneously, and can make pig keep skin ruddy, and can make growth of meat chicken speed improve 5.3%, feedstuff-meat ratio descends 2.6%.

Embodiment 1: hydroxy methionine iron (C ₅H ₈O ₃Fe) preparation and application:

85kg hydroxy methionine+85kg ferrous sulfate monohydrate+41kg98% technical pure NaOH is under 80 ℃ reaction temperature, and regulating PH is 6.5, reacts 1 hour, obtains 115 kilograms of hydroxy methionine irons, centrifugation, washing; Dry, pulverize, be finished product.Wherein iron content is 21.3%, hydroxy methionine content 52.4%.

Feed herd boar with this additive 300～500 gram/tons, can promote growth, improve resistance against diseases; Prolong boar and breed service life; Feed sow with this additive, can significantly improve the interior iron deposit of piglet body in the tire, improve nascent body weight of piglet and survival rate; Concentration of iron improves in the milk; Feed piglet and can effectively prevent piglet anaemia, the death rate reduces, and significantly improves the piglet hemoglobin level, improves the immune disease-resistance ability and promotes growth.The pork pig of engrossing then promotes growth, improves feedstuff-meat ratio, improves yellowish pink, makes the pigskin skin ruddy, the hair color light.Feed poultry and help feedstuff-egg ratio, improve the hatching of breeding eggs rate, improve anti-stress ability, reduce the death rate.Feed aquatic livestock, can promote growth to improve survival rate, reduce disease and take place, promote growth, improve the economic worth of feed.

Claims (2)

1, a kind of feed addictive is characterized in that being hydroxy methionine iron chelate (C ₅H ₈O ₃Fe).

2, a kind of preparation method of feed addictive as claimed in claim 1 is characterized in that may further comprise the steps:

(1), the inorganic salt solution of liquid hydroxy methionine and iron is 1: 1～2 with mol ratio, 50～100 ℃ of temperature, in the presence of NaOH, pH value 6～8 reacted under the condition of normal pressure 0.8～1.2 hour, obtained hydroxy methionine iron;

(2), centrifugation, washing;

(3), dry, pulverize, be packaged into finished product.