DE1063443B - Complementary feed - Google Patents

Description

GERMAN

It is known to use α-oxy-γ-methylmercapto-butyramide or ammonium or alkaline earth salts or mixtures these salts of a-oxy-y-methylmercapto-butyric acid as a feed additive to promote the Use growth of poultry and non-ruminants (German Patent 928 688).

It has now been found that aliphatic esters of α-oxy-γ-methylmercapto-butyric acid of the general formula

CH _a

• CH ₉ -CH ₉ -CH- COOR

OH

where R is an aliphatic radical having 1 to 20 carbon atoms, with excellent success as Complementary feed for poultry, ruminants and non-ruminants can be used. For the esterification come primarily primary and secondary alcohols and alcohols with several primary and / or secondary hydroxyl groups. The esters can be used alone or as mixtures of several Esters can be used. Instead of the simple esters, there are also the estolides of the acid mentioned into consideration. When estolide is formed, 2 molecules are linked to one another in such a way that the acid group of one molecule meets the hydroxyl group of the other molecule. In the simplest In the case, compounds of the general formula are formed

CH _i -S-CH ₂ -CH ₂ -CH-COOR

O = C-CH-CH ₂ -CH ₂ -S-CH ₃ OH

A number of molecules can also be linked to one another in an analogous manner.

Complementary feed according to the invention promote the growth of poultry, pigs, sheep and cattle and the like, at the same time they improve the ability of poultry to lay and increase the milk yield of cows and sheep.

The advantage of the claimed supplementary feed compared to that in German patent specification 928 688 described can be seen in the fact that the claimed esters in their production in high purity and good yield, while this is not the case with the salts of α-oxy-γ-methylmercapto-butyric acid is the case, as is the case with the free acid. During production by saponification of the appropriate Cyanohydrins drops this acid in the form of a goo Applicant:

German gold and silver refinery formerly Ro essler,
Frankfurt / M., Weißfrauenstr. 9

Dr. Ludwig Hüter and Dr. Werner Black,
Frankfurt / M.,
have been named as inventors

that cannot be purified by distillation or crystallization. There is the possibility to produce crystallizing salts, to which, however, by-products adhere stubbornly.

To prove the technical progress, the growth effect of the a-oxy-y-methylmercapto-butyric acid ethyl ester (OMB) was investigated. New Hampshire hens and chickens were fed the following standard diet: 31% corn meal, 20% wheat meal, 19% barley meal, 16% extract. Soy meal, 1% meat feed meal, 4% cod meal, 2% skimmed milk powder, 2% dry yeast, 2.5% green alfalfa meal, 1.5% mineral mixture DLG la, 1% carbonate of lime and 1 kg compound feed each 6000 IU vitamin A, 600 IU vitamin D. ₃ , 10 mg aureomycin, 10 meg vitamin B ₁₂ .

Some of the chickens received an additional 0.05% OMB.

The animals were kept for 8 weeks in electrically heated rearing boxes with a wire floor. That Compound feed was always available to them for whatever consumption they wanted. The animals were given water to drink pure water.

The experiments brought the following result:

control + 0.05 OMB Feed consumption (g) 2012 1889 Nutrient uptake (g) .... 1382 1298 Weight gain (g) 723 716 Raw recycling 2.78 2.64 Recovery number 191 181

If one expresses these results in relative numbers - for better comparability - the result is (Control = 100):

909 607/116

Claims (1)

1 063 control + 0.05%
OMB Feed consumption 100 93.9 Weight gain 100 99 Recovery number 100 94.8 443 Claim:
Complementary feed for poultry, ruminants and non-ruminants, characterized in that it consists of one or more aliphatic esters of α-oxy-γ-methylmercapto-butyric acid or of one or more estolides of these esters or of mixtures of these substances. © 909 607/116 8.59