Supplementing Fish Oil to Dairy Cattle
Author | : Michael Alan Ballou |
Publisher | : |
Total Pages | : 668 |
Release | : 2007 |
Genre | : |
ISBN | : |
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Author | : Michael Alan Ballou |
Publisher | : |
Total Pages | : 668 |
Release | : 2007 |
Genre | : |
ISBN | : |
Author | : Leah Holmes-Miller |
Publisher | : |
Total Pages | : 61 |
Release | : 2009 |
Genre | : |
ISBN | : |
In the recent years, there has been considerable interest in the potential health-promoting properties of both conjugated linoleic acid (cis-9, trans-11 CLA), a fatty acid produced naturally in ruminant animals, and omega-3 fatty acids. The objectives of this research were to evaluate the effects of supplementing grazing dairy cows' diet with fish oil(FO)-linseed oil(LO) blend on milk cis-9, trans-11 CLA and omega-3 fatty acids milk content.
Author | : Payam Jr Vahmani |
Publisher | : |
Total Pages | : |
Release | : 2013 |
Genre | : |
ISBN | : |
Author | : William Brown |
Publisher | : |
Total Pages | : 142 |
Release | : 2007 |
Genre | : |
ISBN | : |
A considerable amount of evidence has accumulated in supporting the view that conjugated linoleic acids (CLA) and omega-3 fatty acids (FA) have beneficial health properties and that the consumption levels of these FA is insufficient in most western diets. In view of their benefits, there has been a considerable interest in enhancing milk and dairy food products with these beneficial FA. The objective of the first trial was to determine the effect of supplementing grazing dairy cows' diet with fish oil (FO) and linseed oil (LSO) on milk c9, t11 CLA and omega-3 FA. Sixteen Holstein cows (170 ± 19 DIM) were divided into 2 groups (n=8 per treatment) and fed a basal diet (8 kg/d; DM basis) consisting of corn, soybean meal, molasses, vitamin/mineral premix plus 800 g saturated animal fat (CONT) or a basal diet plus 200 g FO and 600 g LSO (FOLSO). All cows grazed together on Sudan grass pasture for ad libitum and were fed the treatment diets for 3 wks. Cows were milked twice a day and milk samples were collected during the last three days of the trial. Milk production (24.89 and 22.45 kg/d), milk protein percentages (2.76 and 2.82) and milk protein yield (0.68 and 0.64 kg/d) for the CONT and FOLSO diets, respectively, were not affected ( P > 0.05) by treatment diets. Milk fat percentages (3.90 and 2.86) and milk fat yields (0.97 and 0.64 kg/d) were lower ( P
Author | : J.M. Sreenan |
Publisher | : Springer Science & Business Media |
Total Pages | : 294 |
Release | : 2012-12-06 |
Genre | : Medical |
ISBN | : 9400950381 |
Reproductive wastage is a major inefficiency in all livestock production with embryonic mortality accounting for a major portion of this loss. Accordingly the Commission of the European Communities encouraged the organisation of a seminar on embryonic mortality in farm animals which was held in Brussels on the 11th and 12th of December 1984. This book contains the text of the papers, discussions and final summary presented at that Seminar. As a background to the Seminar, the extent and timing of embryonic loss was described for farm animals. Particular consideration was then given to the various mechanisms and signals, both embryonic and uterine in origin, that are so far known to be involved in the establishment of pregnancy. Possible causes of embryonic death including physiological, endocrinological, genetic and immunological components were outlined and discussed. The final summary contains general conclusions from the Seminar and recommendations for future research work on this topic. J.M. Sreenan M.G. Diskin July 1985. ******************** THE EXTENT AND TIMING OF EMBRYONIC MORTALITY IN THE COW J. M. Sreenan & M. G. Diskin, The Agricultural Institute, Belclare, Tuam, Galway, Ireland ABSTRACT The extent and timing of embryonic mortality in heifers, normal cows and repeat breeder cows has been reviewed.
Author | : Deidra O. Felton |
Publisher | : |
Total Pages | : 136 |
Release | : 2007 |
Genre | : |
ISBN | : |
Earlier research showed that conjugated linoleic acid (CLA) content in milk fat is highest when cows' diets are supplemented with a blend of fish oil (FO) and linoleic acid-rich oils. The objectives of this study were to compare the effect of FO and sunflower oil (SFO) supplementation on milk cis -9, trans -11 CLA content and its temporal change when dairy cows managed on pasture or in confinement. Fourteen Holstein cows were assigned into two treatment groups: cows grazed on alfalfa-grass pasture (PAS) or were fed a corn silage-alfalfa hay mix ad libitum (LOT). Both groups were supplemented with 8.2 kg/d grain supplement containing 640 g of FO and SFO (1:3 w/w). Milk samples were collected every third day and during the last 3 days of the experimental period. Milk yield was higher (P 0.05) with the LOT diet compared with the PAS diet. Milk fat percentages and yields were similar (P 0.05) for the two diets. Treatment diets had no effect (P > 0.05) on milk trans C18:1 concentrations (10.64 and 9.82 g/100g of total fatty acids (FA) for the LOT and PAS, respectively) or yields (60.65 and 64.01 g/d), but did affect isomer distributions. Concentration (g/100g of total FA) of vaccenic acid (VA) was lower (P
Author | : Callee McConnell |
Publisher | : |
Total Pages | : 238 |
Release | : 2004 |
Genre | : |
ISBN | : |
Author | : Sarah Harris |
Publisher | : |
Total Pages | : 162 |
Release | : 2005 |
Genre | : |
ISBN | : |
Author | : Sunil Radhakrishnan |
Publisher | : Library and Archives Canada = Bibliothèque et Archives Canada |
Total Pages | : 179 |
Release | : 2005 |
Genre | : |
ISBN | : 9780494057902 |
Author | : Troy Joseph Wistuba |
Publisher | : |
Total Pages | : 252 |
Release | : 2003 |
Genre | : Beef cattle |
ISBN | : |