Aquaculture shrimps and methods for culturing same

Patent metadata

Field	Value
Publication number	US-11071288-B2
Application number	US-201916277763-A
Country	US
Kind code	B2
Filing date	Feb 15, 2019
Priority date	Aug 16, 2016
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

An aquacultured shrimp contains carotenoid and does not have a broken 2nd antenna.

First claim

What is claimed is:

1. An aquaculture shrimp produced by a method of farming aquaculture shrimps, comprising:
keeping shrimps in a land-farming nursery; and
feeding to the shrimps kept in the land-farming nursery a feed comprising a carotenoid in an amount of 50 ppm or greater,
wherein the keeping includes monitoring a ratio of shrimps having pairs of second antennas that are not broken and are longer than respective body lengths of the shrimps in the land-farming nursery such that the ratio is at least 50%.

2. The aquaculture shrimp according to claim 1 , wherein the keeping includes selecting the shrimps having the pair of second antennas that are longer than the body lengths, respectively.

3. The aquaculture shrimp according to claim 1 , wherein the keeping includes monitoring for the shrimps having value a of body color that is greater than or equal to −0.08.

4. The aquaculture shrimp according to claim 1 , wherein the keeping includes monitoring for the shrimps having value b of body color that is greater than or equal to 0.15.

5. The aquaculture shrimp according to claim 1 , wherein the keeping includes monitoring for the shrimps having colorfulness of body color that is less than or equal to 1.8.

6. The aquaculture shrimp according to claim 1 , wherein the keeping includes monitoring for the shrimps having body weights that are greater than or equal to 10 g.

7. The aquaculture shrimp according to claim 1 , wherein the keeping includes monitoring for the shrimps having body lengths that are greater than or equal to 5 cm.

8. The aquaculture shrimp according to claim 1 , wherein the carotenoid comprises synthetic astaxanthin.

9. The aquaculture shrimp according to claim 1 , wherein the shrimps are of order Decapoda.

10. The aquaculture shrimp according to claim 9 , wherein the shrimps are classified in superfamily Penaeoidea of order Decapoda.

11. The aquaculture shrimp according to claim 10 , wherein the aquaculture shrimp is classified in family Penaeidae of superfamily Penaeoidea.

12. The aquaculture shrimp according to claim 11 , wherein the shrimps are classified in genus Litopenaeus of superfamily Penaeoidea.

13. The aquaculture shrimp according to claim 12 , wherein the shrimps are classified in Litopenaeus vannamei of genus Litopenaeus.

14. The aquaculture shrimp according to claim 1 , wherein the carotenoid in the feed is astaxanthin, and the amount of astaxanthin is greater than or equal to 100 ppm.

15. A composition, comprising:
the aquaculture shrimp of claim 1 or a processed product thereof.

16. A method of farming aquaculture shrimps, comprising:
keeping shrimps in a land-farming nursery; and
feeding to the shrimps kept in the land-farming nursery a feed comprising carotenoid in an amount of 50 ppm or greater,
wherein the keeping includes monitoring a ratio of shrimps having pairs of second antennas that are not broken and are longer than respective body lengths of the shrimps in the land-fanning nursery such that the ratio is at least 50%.

17. The method of claim 16 , wherein the carotenoid in the feed is astaxanthin.

18. The method of claim 16 , further comprising:
killing the shrimps in ice with water; and
selecting shrimps having value a of body color 2 days after the killing in ice with water that is greater than or equal to −1.26.

19. The method of claim 18 , wherein the selecting includes selecting the shrimps having value b of body color that is greater than or equal to −4.3.

20. The method of claim 18 , wherein the selecting includes selecting the shrimps having colorfulness of body color that is less than or equal to 4.62.

21. The method of claim 16 , wherein the carotenoid in the feed is astaxanthin, and the amount of astaxanthin is greater than or equal to 100 ppm.

22. The method of claim 16 , wherein the shrimps are kept in the land-farming nursery at a water temperature set to 23 to 32° C.

23. The method of claim 16 , wherein the shrimps in the land-farming nursery includes maintaining DO greater than or equal to 6.1 mg/L.

24. The method of claim 16 , wherein the shrimps in the land-farming nursery are kept in a light-dark cycle.

Assignees

• Nippon Suisan Kaisha Ltd

Inventors

• Minami Hiroshi
• Matsuoka Kosuke

Classifications

• A61K35/612

  Crustaceans, e.g. crabs, lobsters, shrimps, krill or crayfish; Barnacles · CPC title

• A61P43/00

  Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00 · CPC title

• A23L17/40

  Shell-fish · CPC title

• A23K20/105

  Aliphatic or alicyclic compounds · CPC title

• A23K50/80

  for aquatic animals, e.g. fish, crustaceans or molluscs · CPC title