Active immunization of boars against gonadotropin releasing hormone. II. Effects on libido and response to testosterone propionate.

Active immunization of boars against gonadotropin releasing hormone. II. Effects on libido and response to testosterone propionate. Research Abstract Details 

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Active immunization of boars against gonadotropin releasing hormone. II. Effects on libido and response to testosterone propionate. Abstract Text:

K L Esbenshade,B H Johnson,

Of 20 sexually mature Duroc boars showing normal libido, 10 were actively immunized against gonadotropin releasing hormone (GnRH). After immunization against GnRH, boars showed minimal sexual interest in an estrous female, while untreated boars showed normal libido. Eight of the boars actively immunized against GnRH were randomly assigned to treatment (T) or control (C) groups. Boars in the T and C groups were given testosterone propionate or vehicle, respectively, on Days 0, 5, 10, and 15. Boars in both groups were observed for libido in the presence of an estrous female every 4 d for 28 d. Mean libido score for T boars increased gradually until all boars displayed maximum libido on Day 20, but libido returned to low levels on Day 28. In contrast, C boars remained sexually inactive throughout the study. The results of this study indicate that active immunization of sexually mature boars eliminates sexual behavior and that sexual behavior can be restored quickly by administering testosterone propionate.

Active immunization of boars against gonadotropin releasing hormone. II. Effects on libido and response to testosterone propionate. Publishing Authors By Initials

KL Esbenshade,BH Johnson,

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Active immunization of boars against gonadotropin releasing hormone. II. Effects on libido and response to testosterone propionate. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 27

Page Numbers: 581-5

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: Apr

YEAR: 1987

Active immunization of boars against gonadotropin releasing hormone. II. Effects on libido and response to testosterone propionate. Information

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LANGUAGE: eng

NlmUniqueID: 421510

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Grant and Affiliation Information for Active immunization of boars against gonadotropin releasing hormone. II. Effects on libido and response to testosterone propionate.

AFFILIATION: Department of Animal Science North Carolina State University Raleigh, NC 27695-7621 USA.

Country: United States

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MEDLINETA: Theriogenology

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