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EP-4740743-A1 - FEED ADDITIVE AND LIVESTOCK FEED

EP4740743A1EP 4740743 A1EP4740743 A1EP 4740743A1EP-4740743-A1

Abstract

A feed additive contains a methionine hydroxy analog and/or a calcium salt thereof, methionine and/or a salt thereof, and guanidinoacetic acid and/or a salt thereof. A livestock feed contains a methionine hydroxy analog and/or a calcium salt thereof, methionine and/or a salt thereof, guanidinoacetic acid and/or a salt thereof, and a basic feed.

Inventors

  • TONOUE, Tsuyoshi
  • MATSUI, DAISUKE

Assignees

  • Sumitomo Chemical Company, Limited

Dates

Publication Date
20260513
Application Date
20240522

Claims (10)

  1. A feed additive comprising: a methionine hydroxy analog and/or a calcium salt thereof; methionine and/or a salt thereof; and guanidinoacetic acid and/or a salt thereof.
  2. The feed additive according to claim 1, further comprising a carrier.
  3. The feed additive according to claim 2, wherein the carrier includes a solid carrier, and the solid carrier supports the methionine hydroxy analog.
  4. A livestock feed comprising: a methionine hydroxy analog and/or a calcium salt thereof; methionine and/or a salt thereof; guanidinoacetic acid and/or a salt thereof; and a basic feed.
  5. The livestock feed according to claim 4, further comprising a carrier.
  6. The livestock feed according to claim 5, wherein the carrier includes a solid carrier, and the solid carrier supports the methionine hydroxy analog.
  7. A method of rearing livestock, comprising feeding livestock with the livestock feed according to any one of claims 4 to 6.
  8. The method of rearing according to claim 7, wherein the livestock are poultry.
  9. A method of improving a weight gain and a feed conversion ratio in livestock, the method comprising feeding livestock with the livestock feed according to any one of claims 4 to 6.
  10. The method according to claim 9, wherein the livestock are poultry.

Description

[Technical Field] The present invention relates to a feed additive and a livestock feed, and it also relates to a method of rearing livestock by using a livestock feed, as well as a method of improving a weight gain and a feed conversion ratio in livestock. [Background Art] Methionine is an essential amino acid that is not synthesized in the body of animals, and it is known to be used as an additive to add to feed for livestock and the like. Creatine, which is one of amino acids, is found in the body of animals and serves as a source of energy for movements. Creatine is produced by methylation of its precursor, guanidinoacetic acid. Guanidinoacetic acid is a source of creatine, so its use as a feed additive is suggested (Japanese National Patent Publication No. 2008-501352 (PTL 1), for example). [CITATION LIST] [PATENT LITERATURE] [PTL 1] Japanese National Patent Publication No. 2008-501352 [SUMMARY OF THE INVENTION] [PROBLEMS TO BE SOLVED BY THE INVENTION] Feed additives and livestock feeds are required to achieve an excellent weight gain and an excellent feed conversion ratio. An object of the present invention is to provide a feed additive and a livestock feed that are capable of improving a weight gain and a feed conversion ratio in livestock. [MEANS FOR SOLVING THE PROBLEMS] The present invention provides a feed additive, a livestock feed, a method of rearing livestock, as well as a method of improving a weight gain and a feed conversion ratio in livestock, which are described below. [1] A feed additive containing: a methionine hydroxy analog and/or a calcium salt thereof;methionine and/or a salt thereof; andguanidinoacetic acid and/or a salt thereof.[2] The feed additive according to [1], further containing a carrier.[3] The feed additive according to [2], wherein the carrier includes a solid carrier, andthe solid carrier supports the methionine hydroxy analog.[4] A livestock feed containing: a methionine hydroxy analog and/or a calcium salt thereof;methionine and/or a salt thereof;guanidinoacetic acid and/or a salt thereof; anda basic feed.[5] The livestock feed according to [4], further containing a carrier.[6] The livestock feed according to [5], wherein the carrier includes a solid carrier, andthe solid carrier supports the methionine hydroxy analog.[7] A method of rearing livestock, including feeding livestock with the livestock feed according to any one of [4] to [6].[8] The method of rearing according to [7], wherein the livestock are poultry.[9] A method of improving a weight gain and a feed conversion ratio in livestock, the method including feeding livestock with the livestock feed according to any one of [4] to [6].[10] The method according to [9], wherein the livestock are poultry. [EFFECTS OF THE INVENTION] The present invention makes it possible to provide a feed additive and a livestock feed that are capable of improving a weight gain and a feed conversion ratio in livestock. [MODE FOR CARRYING OUT THE INVENTION] (Feed Additive) A feed additive according to the present invention (hereinafter also called "the present feed additive") contains a methionine hydroxy analog and/or a calcium salt thereof (hereinafter also called "LMA"), methionine and/or a salt thereof (hereinafter also called "DLM"), and guanidinoacetic acid and/or a salt thereof (hereinafter also called "GAA"). LMA may be a methionine hydroxy analog, or may be a calcium salt of a methionine hydroxy analog, or may be a mixture of these. The methionine hydroxy analog may be a D-form, or may be an L-form, or may be a mixture of these. The calcium salt of a methionine hydroxy analog may be a D-form, or may be an L-form, or may be a mixture of these. LMA is preferably a methionine hydroxy analog. DLM may be methionine, or may be a salt of methionine, or may be a mixture of these. The salt of methionine is preferably a sodium salt. Methionine may be L-methionine, or may be D-methionine, or may be a mixture of these. DLM is preferably L-methionine and/or DL-methionine. GAA may be guanidinoacetic acid, or may be a salt of guanidinoacetic acid, or may be a mixture of these. Examples of the salt of guanidinoacetic acid include a hydrochloric acid salt of guanidinoacetic acid, a hydrobromic acid salt of guanidinoacetic acid, and a phosphoric acid salt of guanidinoacetic acid. GAA is preferably guanidinoacetic acid. By containing LMA, DLM, and GAA, the present feed additive is capable of improving the weight gain and the feed conversion ratio (FCR) in livestock. As compared to when only one of LMA and DLM is used or when one of LMA and DLM in combination with GAA are used, the present feed additive is capable of improving the weight gain and the feed conversion ratio in livestock. The mass ratio between LMA and DLM (LMA/DLM) in the present feed additive may be 0.05 or more, or may be 0.1 or more, or may be 0.3 or more, or may be 0.5 or more. The LMA/DLM may be 10.0 or less, or may be 5.0 or less, or may be 3.0 or less, or may be 2.0 or