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Effects of Dietary Choline, Folic ac...

Krishnan Rajalekshmy, Pradeep.

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Effects of Dietary Choline, Folic acid and Vitamin B12 on Laying Hen Performance, Egg Components and Egg Phospholipid Composition.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Effects of Dietary Choline, Folic acid and Vitamin B12 on Laying Hen Performance, Egg Components and Egg Phospholipid Composition./
作者:	Krishnan Rajalekshmy, Pradeep.
面頁冊數:	129 p.
附註:	Source: Dissertation Abstracts International, Volume: 72-01, Section: B, page: 0005.
Contained By:	Dissertation Abstracts International72-01B.
標題:	Agriculture, Animal Culture and Nutrition. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3428429
ISBN:	9781124350899

Effects of Dietary Choline, Folic acid and Vitamin B12 on Laying Hen Performance, Egg Components and Egg Phospholipid Composition.
Krishnan Rajalekshmy, Pradeep.

Effects of Dietary Choline, Folic acid and Vitamin B12 on Laying Hen Performance, Egg Components and Egg Phospholipid Composition. - 129 p.

Source: Dissertation Abstracts International, Volume: 72-01, Section: B, page: 0005.

Thesis (Ph.D.)--The University of Nebraska - Lincoln, 2010.

In trial 1, a corn--soy basal diet was formulated with three levels of supplemental choline (0, 500 and 1000 ppm) and three levels of supplemental folic acid (0, 2 and 4 ppm) in a 3 x 3 factorial arrangement. Folic acid at 2 ppm increased egg production (p≤0.04). Egg wt was higher at 500 ppm of choline (p≤0.06) and 0 ppm (p≤0.01) of folic acid supplementation. There were choline by folic acid interaction effects on feed intake (p≤0.001), albumen wt (p≤0.005) and yolk wt (p≤0.03). Plasma folate and egg folate showed an increase (p≤0.0001) with added levels of dietary folic acid. Phosphatidylcholine (PC) concentration showed a trend to increase with higher levels of choline and folic acid supplementation. In trial 2, a corn--soy basal diet was formulated with 2 levels supplemental choline (500 and 1000 ppm), 2 levels supplemental folic acid (2 and 4 ppm), and 2 levels supplemental vitamin B12 (0.01 and 0.02 ppm) in a 2 x 2 x 2 factorial arrangement along with a control (no supplementation) group. Yolk wt showed choline x vitamin B12 interaction (p≤0.001). Phosphatidylcholine (PC) showed an increase (p≤0.0001) with added levels of choline, folic acid or vitamin B12. The average value of PC at 500 and 1000 ppm of choline was 152.61 and 164.53 mg/g, respectively. Similarly, the average values for PC at 2 and 4 ppm of folic acid and 0.01 and 0.02 ppm of vitamin B12 were 153.06, 164.07, 155.68 and 161.46 mg/g, respectively. Results indicate that choline, folic acid and vitamin B12 can be supplemented in a synergistic combination to increase egg yolk phosphatidylcholine content by 20 to 25 % compared to no supplementation.

ISBN: 9781124350899Subjects--Topical Terms:

1017857
Agriculture, Animal Culture and Nutrition.

Effects of Dietary Choline, Folic acid and Vitamin B12 on Laying Hen Performance, Egg Components and Egg Phospholipid Composition.
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