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Henningson, Ellinor, 2009. Brunstbeteendets relation till gyltans intag av genistein . Second cycle, A2E. Uppsala: SLU, Dept. of Anatomy, Physiology and Biochemistry (until 231231)



Many scientists agree that phytoestrogens could have an effect on the reproduction of an animal. The question is now why and what mechanisms that play an important role. This paper has been focusing on the estrus behavior of gilts by use of a behavioral study. Some of the gilts were given additional feed with the phytoestrogen genistein which commonly occurs in the feed as a part of soybean products. Blood samples were collected and analyzed for progesterone and estradiol concentrations. Due to few samples, possible differences in hormonal levels between feeding groups could not be determined. The results from the behavioral study show a clear difference (P<0.001) in vocalization rate prior to estrus between the two feeding groups. The gilts given feed with no genistein had a higher vocalization rate than those with genistein in the feed. This has not previously been shown for pigs. The results of this study, and possible explanations, are discussed in relation to available literature on the subject.

Main title:Brunstbeteendets relation till gyltans intag av genistein
Authors:Henningson, Ellinor
Supervisor:Norrby, Mattias
Examiner:Persson, Elisabeth
Volume/Sequential designation:UNSPECIFIED
Year of Publication:2009
Level and depth descriptor:Second cycle, A2E
Student's programme affiliation:VY001 Agricultural Science Programme - Animal Science 270 HEC
Supervising department:(VH) > Dept. of Anatomy, Physiology and Biochemistry (until 231231)
Keywords:brunstbeteende, genistein, beteendestudie, gylta, växtöstrogen
Permanent URL:
Subject. Use of subject categories until 2023-04-30.:Animal physiology and biochemistry
Deposited On:16 Nov 2009 12:17
Metadata Last Modified:20 Apr 2012 14:10

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