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An investigation of the efficacy of ...

Jen, Kimberly Ying.

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An investigation of the efficacy of non-nutritive adsorption agents on decreasing androstenone levels in boars.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	An investigation of the efficacy of non-nutritive adsorption agents on decreasing androstenone levels in boars./
作者:	Jen, Kimberly Ying.
面頁冊數:	129 p.
附註:	Source: Masters Abstracts International, Volume: 49-02, page: 1027.
Contained By:	Masters Abstracts International49-02.
標題:	Agriculture, Animal Culture and Nutrition. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR68600
ISBN:	9780494686003

An investigation of the efficacy of non-nutritive adsorption agents on decreasing androstenone levels in boars.
Jen, Kimberly Ying.

An investigation of the efficacy of non-nutritive adsorption agents on decreasing androstenone levels in boars. - 129 p.

Source: Masters Abstracts International, Volume: 49-02, page: 1027.

Thesis (M.Sc.)--University of Guelph (Canada), 2010.

Boar taint is as an unsavoury, 'urine-perspiration-like' odor which occurs when fat from some boars is heated. In recent years, investigations have focused on alternative methods besides castration for controlling boar taint; however, little is known about limiting the concentration of androstenone through nutritional methods. The efficacy of binding by cholestyramine, activated carbon, tween-60, bentonite and polyvinylpolypyrrolidone to radiolabeled androstenone, estrone, and estrone sulphate was measured from buffer solutions in an in vitro system. The results of the in vitro experiments indicated that activated carbon, cholestyramine and tween-60 had the greatest potential to bind steroid hormones in vivo. Activated carbon significantly reduced the levels of androstenone in plasma and fat and plasma estrone sulphate. Tween-60 treatment decreased the levels of plasma androstenone significantly. Skatole plasma concentrations did not vary for any treatment diet. Thus, activated carbon and tween-60 can depress levels of androstenone in both plasma and fat of entire male pigs.

ISBN: 9780494686003Subjects--Topical Terms:

1017857
Agriculture, Animal Culture and Nutrition.

An investigation of the efficacy of non-nutritive adsorption agents on decreasing androstenone levels in boars.
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520 $a Boar taint is as an unsavoury, 'urine-perspiration-like' odor which occurs when fat from some boars is heated. In recent years, investigations have focused on alternative methods besides castration for controlling boar taint; however, little is known about limiting the concentration of androstenone through nutritional methods. The efficacy of binding by cholestyramine, activated carbon, tween-60, bentonite and polyvinylpolypyrrolidone to radiolabeled androstenone, estrone, and estrone sulphate was measured from buffer solutions in an in vitro system. The results of the in vitro experiments indicated that activated carbon, cholestyramine and tween-60 had the greatest potential to bind steroid hormones in vivo. Activated carbon significantly reduced the levels of androstenone in plasma and fat and plasma estrone sulphate. Tween-60 treatment decreased the levels of plasma androstenone significantly. Skatole plasma concentrations did not vary for any treatment diet. Thus, activated carbon and tween-60 can depress levels of androstenone in both plasma and fat of entire male pigs.
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