Plant extracts having anticoccidial activity

Patent metadata

Field	Value
Publication number	US-10426808-B2
Application number	US-201514802545-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Jun 27, 2012
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

Natural plant parts and extracts of plants selected from the group consisting of Quercus infectoria, Rhus chinensis and Terminalia chebula containing compounds such as gallic acid, derivative of gallic acid, gallotannins and hydrolysable tannins have been found to control coccidiosis in poultry and, more specifically, coccidiosis caused by Eimeria spp. The plant parts and natural extracts result in a reduction of lesion score, oocysts per gram of fecal matter and mortality.

First claim

We claim:

1. A method of controlling coccidiosis in animals, comprising the step of administering a plant extract to the animal, said plant extract from a plant selected from the group consisting of Quercus infectoria and Rhus chinensis, said plant extract being administered to the animals in a dose of from about 0.1 to 50 ppm.

2. The method of claim 1 , wherein the plant extract is administered to the animals in a dose of from about 2 to 20 ppm.

3. The method of claim 2 , wherein the plant extract is administered to the animals in a dose of from about 3 to 10 ppm.

4. The method of claim 1 , wherein the coccidiosis is caused by Eimeria spp.

5. The method of claim 4 , wherein the Eimeria spp. are selected from the group consisting of E. tenella, E. maxima and E. acervulina.

6. The method of claim 1 , wherein controlling coccidiosis includes a reduction in lesion score, oocysts per gram of fecal matter or mortality.

7. A method of reducing the activity of sporozoites in an animal infected with Eimeria spp., comprising the step of administering a plant extract to the animal, said plant extract from a plant selected from the group consisting of Quercus infectoria and Rhus chinensis, said plant extract being administered to the animals in a dose of from about 0.1 to 50 pp.

8. The method of claim 7 , wherein the plant extract is administered in a dose of from about 2 to 20 ppm.

9. The method of claim 8 , wherein the plant extract is administered in a dose of from about 3 to 10 ppm.

10. The method of claim 7 , wherein the coccidiosis is caused by Eimeria spp.

11. The method of claim 10 , wherein the Eimeria spp. are selected from the group consisting of E. tenella, E. maxima and E. acervulina.

12. The method of claim 7 , wherein controlling coccidiosis includes a reduction in lesion score, oocysts per gram of fecal matter or mortality.

13. A method of controlling coccidiosis in animals, comprising the step of administering a plant extract to the animal, said plant extract from Rhus chinensis , said plant extract being administered to the animals in a dose of from about 0.1 to 50 ppm.

Assignees

• Kemin Ind Inc

Inventors

• Thangavel Gokila
• Mukkalil Rajalekshmi
• Chirakkal Haridasan
• Kurian Hannah
• Schoeters Elke
• Wouters Hilde
• Mast Ilse

Classifications

• A61P33/02

  Antiprotozoals, e.g. for leishmaniasis, trichomoniasis, toxoplasmosis · CPC title

• A61K36/22

  Anacardiaceae (Sumac family), e.g. smoketree, sumac or poison oak · CPC title

• A61K36/49 Primary

  Fagaceae (Beech family), e.g. oak or chestnut · CPC title

• A61K31/192

  having aromatic groups, e.g. sulindac, 2-aryl-propionic acids, ethacrynic acid  {(cannabinoids A61K31/658)} · CPC title

• A61K36/185

  Magnoliopsida (dicotyledons) · CPC title