scholarly journals Alterations in blood plasma and milk fatty acid profiles of lactating Holstein cows in response to ruminal infusion of a conjugated linoleic acid mixture

2001 ◽  
Vol 50 (6) ◽  
pp. 463-476 ◽  
Author(s):  
Juan J. Loor ◽  
Joseph H. Herbein
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Blood Plasma ◽  
Conjugated Linoleic Acid ◽  
Holstein Cows ◽  
Acid Mixture ◽  
Milk Fatty Acid ◽  
Fatty Acid Profiles ◽  
Conjugated Linoleic Acid Mixture ◽  
In Blood Plasma

Supplementation with whole cottonseed changes milk composition and milk fatty acid profile in dairy cows

2011 ◽  
Vol 51 (2) ◽  
pp. 95 ◽  
Author(s):  
O. Dayani ◽  
G. R. Ghorbani ◽  
A. K. Esmailizadeh
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Fatty Acid Profile ◽  
Milk Yield ◽  
Experimental Period ◽  
Milk Composition ◽  
Milk Fatty Acid ◽  
Whole Cottonseed

Eight multiparous Holstein cows in mid lactation (average days in milking of 160 ± 40) were used in a replicated 4 by 4 Latin square design, each experimental period lasting 3 weeks, to determine the effects of whole cottonseed (WCS) treatment and dietary crude protein (CP) concentration on the profile of milk fatty acids. Each 3-week experimental period consisted of 2 weeks for ration adaptation followed by 1 week for data collection. The experimental diets consisted of: (1) Control (without WCS), 16% CP; (2) 20% WCS, 16% CP; (3) 20% WCS, 13% CP; and (4) 20% crushed WCS, 13% CP. Minerals and vitamin supplements were the same in all experimental diets. The WCS treatment led to increased DM intake, fat-corrected milk yield, fat concentration, proportion of long-chain fatty acids, unsaturated fatty acids and ratio of unsaturated to saturated fatty acids (P < 0.05). Decreased concentration of dietary CP from 16 to 13% (diet 2 compared with diet 3) led to a decrease in both milk yield and milk composition (P < 0.05). WCS crushed in diets with 13% CP (diet 4 compared with diet 3) increased (P < 0.05) the concentration of conjugated linoleic acid in milk fat. The results demonstrated that adding WCS to the diet of lactating cows improves both milk yield and milk fatty acid profile, particularly the proportion of conjugated linoleic acid.

Effect of a Conjugated Linoleic Acid and ω-3 Fatty Acid Mixture on Body Composition and Adiponectin

Obesity ◽  
2008 ◽  
Vol 16 (5) ◽  
pp. 1019-1024 ◽  
Author(s):  
Alan A. Sneddon ◽  
Fotini Tsofliou ◽  
Claire L. Fyfe ◽  
Ian Matheson ◽  
Diane M. Jackson ◽  
...  
Keyword(s):  
Body Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Fatty Acid Mixture ◽  
Acid Mixture

scholarly journals Fatty Acid Profiles of Western Canadian Bison (Bison bison) Meat

2014 ◽  
Vol 3 (6) ◽  
pp. 146 ◽  
Author(s):  
Tyler D. Turner ◽  
Jessica L. Pilfold ◽  
Jessica Jensen ◽  
Dipesh Prema ◽  
Kingsley K. Donkor ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Bison Bison ◽  
Longissimus Dorsi ◽  
Fatty Acid Profiles ◽  
Omega 3 ◽  
Total N ◽  
Omega 6 ◽  
Biohydrogenation Intermediates

<p>Western Canadian bison meat is renowned for its natural healthfulness; however, studies on the dietary effects on the fatty acid (FA) profile are limited. Herein, we evaluated the FA profiles of retail bison (<em>longissimus dorsi</em>) representing grain-fed (Grain), grass-fed (Grass) and grass-fed plus oat and pea screening supplement from early (Early-con) or late (Late-con) season harvested finishing regimes. Bison meat contained less than 30 mg fat/g meat, and was lowest for Early-con bison. Proportions of polyunsaturated FA (PUFA) were greatest in Early-con and lowest for Late-con bison. Early-con bison had the greatest proportion of omega-6 (n-6) FA and Late-con bison the lowest, yet as mg/g meat, total n-6 content did not differ. In contrast, Grass and Early-con bison had greater proportions of 18:3n-3, 20:5n-3, 22:5n-3, 22:6n-3 and total omega-3 (n-3) FA. The n-3 content for Grain, Grass, Early-con and Late-con bison were 38, 90, 69 and 69 mg/100 g meat, respectively. The 3:1 n-6/n-3 ratios of Grass, Early-con and Late-con bison were superior to the 7:1 ratio of Grain bison. Proportions of potentially beneficial biohydrogenation intermediates (BI), including <em>t</em>11-18:1 and <em>c</em>9, <em>t</em>11-conjugated linoleic acid, were greater for Early-con and Late-con bison. Proportions of <em>cis</em>-monounsaturated FA were similar for both Grain and Grass bison; however, Late-con was greater than Early-con bison. Cumulatively, Grass, Early-con and Late-con bison were more desirable compared to Grain on account of greater proportions of n-3 FA and a lower n-6/n-3 ratio. Furthermore, seasonal supplementation enhanced the BI proportions with potential beneficial bioactivity in Early-con and Late-con bison.</p>

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