Document Detail


Ovarian response to repeated administration of alternating exogenous gonadotropin regimens in the ocelot (Leopardus pardalis) and tigrinus (Leopardus tigrinus).
MedLine Citation:
PMID:  16472853     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Exogenous gonadotropins are used to stimulate ovarian follicular growth and ovulation in mammalian species, including wild cats. However, successes in application of assisted reproduction techniques in nondomestic felids have been sparse. Our objectives were to assess the effectiveness of alternating gonadotropin regimens on ovarian responses. Five adult female ocelots and four adult female tigrinus were treated four to six times, using alternating eCG/hCG and pFSH/pLH at 4-month intervals. Laparoscopies were done to assess follicular development and to collect oocytes from matures follicles. The average number of follicles and corpus luteum (CL) per stimulation was higher in ocelots (7.0 +/- 0.8; mean +/- S.E.M.) than in tigrinus (2.5 +/- 0.4; P < 0.05), but the percentage of mature oocytes did not differ between the two species (mean range, 54-55%). Within species, both gonadotropin regimens were equally effective in inducing follicular growth and oocyte maturation. The total number of ovarian structures and oocyte maturation percentages did not decrease in either species with sequential stimulations. In summary, female ocelots and tigrinus continued to respond to repeated alternating ovarian stimulation protocols. In conclusion, the use of alternating gonadotropin regimens may permit more intensive reproductive management in these endangered cats.
Authors:
Regina Celia Rodrigues da Paz; Eduardo Antunes Dias; Cristina Harumi Adania; Valquíria Hippólito Barnabe; Renato Campanarut Barnabe
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-02-10
Journal Detail:
Title:  Theriogenology     Volume:  66     ISSN:  0093-691X     ISO Abbreviation:  Theriogenology     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-09-18     Completed Date:  2006-11-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0421510     Medline TA:  Theriogenology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1787-9     Citation Subset:  IM    
Affiliation:
Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia da Universidade, São Paulo, São Paulo, Brazil. repaz@usp.br
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MeSH Terms
Descriptor/Qualifier:
Animals
Chorionic Gonadotropin / administration & dosage
Felidae / physiology*
Female
Follicle Stimulating Hormone / administration & dosage
Gonadotropins, Pituitary / administration & dosage*
Luteinizing Hormone / administration & dosage
Oocytes / drug effects,  physiology
Ovarian Follicle / drug effects*,  physiology
Ovulation Induction / methods,  veterinary*
Chemical
Reg. No./Substance:
0/Chorionic Gonadotropin; 0/Gonadotropins, Pituitary; 9002-67-9/Luteinizing Hormone; 9002-68-0/Follicle Stimulating Hormone

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