DE2205210A1 - FEED FOR RUMER - Google Patents

Description

GERMAN GOLD AND SILVER SCHEIDEANSTALT FORMERLY ROESSLER Frankfurt am Main, Weissfrauenstrasse 9

Feed for ruminants 2205210

.The invention relates to the use of N-acyl methionine for Feeding ruminants.

It is known to use amino acids as an additive for compound feed. For example, methionine brings about a considerable improvement in the quality of the protein component of a feed in which this amino acid is present is not available in sufficient quantity for the animal, namely in the die'proteinkompompente from methionine poor Proteins. In these cases the addition of methionine causes a considerable improvement in the growth rates and the Feed conversion. However, this success has so far only been achieved in monogastric animals.

The nutritional physiology of ruminants differs significantly from that of monogastric animals. It is well known that ruminants have multiple stomachs. The first, by far the largest stomach, the rumen, contains its own microflora of bacteria and protozoa, which break down added synthetic amino acids before they can be used by the animal (j. Animal Sci. 14 (1955), 132-136). In addition, there are enzyme systems in the rumen that can build up amino acids from ammonia and fatty acids or carbon compounds. Experiments have shown that it is actually possible to feed ruminants without any dietary protein if sufficient non-protein nitrogen, for example urea, and carbon compounds are supplied (Annal. Sci. Fennicae A II 141 (1968), 3-21). For these reasons, an improvement in the quality of the feed of ruminants through the addition of amino acids, as has been confirmed by experiments, is not to be expected (j.-Animal Sci. 9 (1950) 661} 10 (1951) ^ 39 - kk6 and 1052} 14 ( 1955), 132 - 130).

-Z-

309833/0596

It has now been found that N-acyl-methionine of the general formula

CH _n -S-CH ₀ -CH ₀ -CH-COOPI 3 2 2,

NH
I.
C = O

in which R is a saturated or unsaturated, branched or unbranched Hydrocarbon residue is used for feeding suitable for ruminants. Surprisingly, the use of such compounds as feed additive results in considerable amounts Improvements, for example in wool growth in sheep. N-acyl methionine, which has 7 to 21 carbon atoms in the Hydrocarbon radical R contains.

The N-acyl compounds of methionine to be used according to the invention are in a manner known per se, for example by reacting the methionine with the corresponding acid chlorides in the presence of alkali.

The N-acyl-methionine can be fed straight away, in general it is used as an admixture to common feed or compound feed or to premixes, such as vitamin and mineral substances, or used to feed urea.

The amounts of N-acyl methionine can be selected within wide ranges. In general, one should be included in the total amount of feed Day the methionine portion of the supplied with the N-acyl methionine Feed, based on the dry substance of the feed, about 0.01 to 556, especially about $ 0.03 to $ 1.

309833/0596

Test animals were 12 mutton (merino country sheep). As a basic feed per animal per day were applied from 1000 to 1300 g of a mixture of 10.8 $ grass meal, 44.9 <$> oat hull flour, 42.9 # tapioca, 0.86 $ urea and 0.54 ° / _o mixture of minerals for cattle . In a previous period of 5 weeks, all animals were provided exclusively with this basic feed; in a following main period of 5 weeks, 3 groups of 4 animals each were fed differently, namely group I, tier 1 to 4, only basic feed group II, tier 5 to 8, daily addition of 5.0 g methionine

to basic forage

Group III, tier 9 to 12, add 13.9 g daily

N-stearoyl methionine for basic feed.

At the end of the previous and main periods, the Wool yield on a section of fur marked before the start of the experiment established. The results are summarized in the table below.

Previous period Group I. Main period # the Wool yield Wool yield Group I. Gram 5a the Gram Group I Tier 1 77.4 73.9 2 58.2 100 53.9 3 65.2 59.9 100 4th 64.4 66.7 Group average 11 65.5 63.6 Group II Tier 5 61.5 63.1 6th 68.9 101 65.6 7th 58.2 57.9 104 8th 76.3 79.3 Group average 66.2 66.5 Group III Tier 9 58.2 .71.1 10 64.3 98 80.8 11 73.2 87.1 128 12th 65.4 86.7 Group average 64.2 81.3

309833/053

<J € -

Example 2

The procedure was as in Example 1, but the 4 animals in group III were given 13.9 g daily during the main period N-oleoyl-methionine instead of N-stearoyl-methionine as an additive to Basic feed given.

Previous period <fo the Main period $ the Wool yield Group I. Wool yield Group I. Gram Gram Group I Tier 1 74.4 73.9 2 58.2 53.9 3 65.2 100 59.9 100 4th 64.4 66.7 Group size chnlt ~ 65.5 63.6 Group Ii Tier 5 61.5 63.1 6th 68.9 65.6 7th 58.2 101 57.9 io4 8th 76.3 79.3 Group average 66.2 66.5 Group III Tier 13 6Ä.9 80.5 14th 65.1 79.3 15th 73.6 99 87Λ 138 16 57Λ 78.7 Group average 64.8 83.1

309833/0596

Bet game 3

The procedure was as in Example 1, but the animals were k in the main period in the group III 10.2 g per day added to the basic feed N- Deeanoyl "methionine instead of N-stearoyl-methionine as an additive.

Gram Previous period I. ■ Main perxode # the Wool yield Wool yield Group I. IkA Gram 58.2 Group I Tier 1 65.2 73.9 2 6k, k 53.9 3 65.5 59.9 100 k 61.5 66.7 Group average 68.9 63.6 Group II Tier 5 58.2 63.1 6th 76.3 65.6 7th 66.2 57.9 104 8th 63.5 79.3 Group du ro he c hni 11 68.7 66.5 Group III Tier 17 72.1 73.8 18th 68.0 75.0 19th 68.9 76.9 120 20th 80.9 Group duration ο ha c hnl11 76.5 $> the group 100 101 10 ^

309833 / 059G

Claims (3)

patent claims 1. Use of N-acyl methionine of the general formula CH _a -S-CH ₀ -CH ₀ -CH-COOH 3 2 2, NH C = O in which R is a saturated or unsaturated, branched one or unbranched hydrocarbon residue, for feeding of ruminants. 2. Use of N-aoyl methionine according to claim 1 with a hydrocarbon radical R containing 7 to 21 carbon atoms contains « 3. Use of N-acyl methionine according to claim 1 or 2, characterized in that within the total amount of feed one day the metnionine content of the feed supplied by the N-acyl methionine, based on the dry matter dee feed, about $ 0.01 to $ 5> amounts to. 309333/0596