語系:
繁體中文
English
說明(常見問題)
回圖書館首頁
手機版館藏查詢
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
Impact of dietary fat composition on...
~
Kellner, Trey A.
FindBook
Google Book
Amazon
博客來
Impact of dietary fat composition on digestion, metabolism and deposition of fat in the growing pig.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Impact of dietary fat composition on digestion, metabolism and deposition of fat in the growing pig./
作者:
Kellner, Trey A.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:
236 p.
附註:
Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
Contained By:
Dissertation Abstracts International79-02B(E).
標題:
Animal sciences. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10281467
ISBN:
9780355334630
Impact of dietary fat composition on digestion, metabolism and deposition of fat in the growing pig.
Kellner, Trey A.
Impact of dietary fat composition on digestion, metabolism and deposition of fat in the growing pig.
- Ann Arbor : ProQuest Dissertations & Theses, 2017 - 236 p.
Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
Thesis (Ph.D.)--Iowa State University, 2017.
The overall objective of this dissertation was to discern which components of the chemical composition of dietary fat affects the digestibility and energy content of dietary fat; the expression of genes involved in lipid metabolism; and the resulting carcass fat composition. Chapter 2, validated that dietary linoleic acid concentration was a more accurate predictor of carcass iodine value than iodine value product. Chapter 3, found that the addition of an unsaturated versus a saturated fat source did not alleviate the negative impacts associated with heat stress. Increased saturated fatty acid intake compared to increased intake of omega-6 fatty acids was found to decrease the mRNA abundance of fatty acid synthase (FASN) in adipose tissue in both Chapters 3 and 4. Decreased FASN mRNA content due to increased intake of saturated fatty acids would suggest that the de novo lipogenesis rate in adipose tissue is decreased. It was found in Chapter 5, that the DE content of dietary fat can be explained to a large degree by the chemical composition of dietary fat. However, the relationship between dietary fat DE content and its chemical composition was not the same between 13 and 50 kg of BW, respectively. In Chapter 6, it was found that the endogenous losses of fat accounted for 43% and 68% of fecal acid hydrolyzed ether extract at 13 and 50 kg of BW, respectively. Consequently, implying that the DE content of dietary fat is underestimated by 0.42 and 0.60 Mcal/kg, at 13 and 50 kg of BW, respectively, when measured on an apparent basis. This dissertation indicates that more work is needed to validate the DE, ME and NE estimates of dietary fat; to determine if dietary fat DE content needs to be adjusted for endogenous losses; to build a model that uses the chemical composition of dietary fat source and the energy intake of the pig, to explain observed lipid deposition rates and carcass fatty acid composition.
ISBN: 9780355334630Subjects--Topical Terms:
3174829
Animal sciences.
Impact of dietary fat composition on digestion, metabolism and deposition of fat in the growing pig.
LDR
:02906nmm a2200301 4500
001
2202075
005
20190513114554.5
008
201008s2017 ||||||||||||||||| ||eng d
020
$a
9780355334630
035
$a
(MiAaPQ)AAI10281467
035
$a
(MiAaPQ)iastate:16573
035
$a
AAI10281467
040
$a
MiAaPQ
$c
MiAaPQ
100
1
$a
Kellner, Trey A.
$3
3174861
245
1 0
$a
Impact of dietary fat composition on digestion, metabolism and deposition of fat in the growing pig.
260
1
$a
Ann Arbor :
$b
ProQuest Dissertations & Theses,
$c
2017
300
$a
236 p.
500
$a
Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
500
$a
Adviser: John F. Patience.
502
$a
Thesis (Ph.D.)--Iowa State University, 2017.
520
$a
The overall objective of this dissertation was to discern which components of the chemical composition of dietary fat affects the digestibility and energy content of dietary fat; the expression of genes involved in lipid metabolism; and the resulting carcass fat composition. Chapter 2, validated that dietary linoleic acid concentration was a more accurate predictor of carcass iodine value than iodine value product. Chapter 3, found that the addition of an unsaturated versus a saturated fat source did not alleviate the negative impacts associated with heat stress. Increased saturated fatty acid intake compared to increased intake of omega-6 fatty acids was found to decrease the mRNA abundance of fatty acid synthase (FASN) in adipose tissue in both Chapters 3 and 4. Decreased FASN mRNA content due to increased intake of saturated fatty acids would suggest that the de novo lipogenesis rate in adipose tissue is decreased. It was found in Chapter 5, that the DE content of dietary fat can be explained to a large degree by the chemical composition of dietary fat. However, the relationship between dietary fat DE content and its chemical composition was not the same between 13 and 50 kg of BW, respectively. In Chapter 6, it was found that the endogenous losses of fat accounted for 43% and 68% of fecal acid hydrolyzed ether extract at 13 and 50 kg of BW, respectively. Consequently, implying that the DE content of dietary fat is underestimated by 0.42 and 0.60 Mcal/kg, at 13 and 50 kg of BW, respectively, when measured on an apparent basis. This dissertation indicates that more work is needed to validate the DE, ME and NE estimates of dietary fat; to determine if dietary fat DE content needs to be adjusted for endogenous losses; to build a model that uses the chemical composition of dietary fat source and the energy intake of the pig, to explain observed lipid deposition rates and carcass fatty acid composition.
590
$a
School code: 0097.
650
4
$a
Animal sciences.
$3
3174829
650
4
$a
Nutrition.
$3
517777
690
$a
0475
690
$a
0570
710
2
$a
Iowa State University.
$b
Animal Science.
$3
1035695
773
0
$t
Dissertation Abstracts International
$g
79-02B(E).
790
$a
0097
791
$a
Ph.D.
792
$a
2017
793
$a
English
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10281467
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9378624
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入