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Effect of subacute ruminal acidosis on milk fat concentration, yield and fatty acid profile of dairy cows receiving soybean oil

Published online by Cambridge University Press:  09 June 2010

Ousama AlZahal ,
Mamun M Or-Rashid ,
Sabrina L Greenwood  and
Brian W McBride
Ousama AlZahal
Affiliation:
Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Mamun M Or-Rashid
Affiliation:
Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Sabrina L Greenwood
Affiliation:
Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Brian W McBride*
Affiliation:
Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
*
*For correspondence; e-mail: bmcbride@uoguelph.ca
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Abstract

The objective of this study was to investigate the effect of ruminal infusion of soybean oil (SBO) with either a moderate- or high-forage diet on fat concentration, yield and composition in milk from dairy cows. Six rumen-fistulated Holstein dairy cows (639±51 kg body weight, 140±59 days in milk) were used in the study. Cows were randomly assigned to one of two dietary treatments, a high forage:concentrate (HFC, 74:26) or a moderate forage:concentrate (MFC, 56:44) total mixed ration. Cows were fed at 08.00 and 13.00 h and pulse-dosed ruminally at 13.00 h over a 10-min duration with 2% of diet dry matter of SBO. Ruminal pH was recorded continuously. Cows receiving the MFC treatment had lower daily mean ruminal pH and ruminal pH was below 6·0 for a longer duration compared with the HFC treatment (640 vs. 262 min/d, P<0·05). Cows receiving the MFC treatment had a greater reduction (diet by week interaction, P<0·05) in milk fat concentration and yield than cows receiving the HFC treatment (42 vs. 22% and 45 vs. 21%, respectively). Additionally, cows receiving the MFC diet had a greater reduction in milk fat concentration (g/100 g FA) of FA <C16 (14 vs. 8%), and a greater increase in concentration of FA >C16 (17 vs. 9%), trans-10 18:1 (159 vs. 21%) and trans-9, cis-11 conjugated linoleic acid (121 vs. 55%) (P<0·05) compared with cows receiving the HFC diet. This study demonstrated that cows fed the MFC diet had lower ruminal pH and showed a greater rate of milk fat depression when infused with SBO.

Keywords

dietary fibreruminal pHmilk fat depressionsoybean oilfatty acidbiohydrogenation
Type
Research Article
Information
Journal of Dairy Research , Volume 77 , Issue 3 , August 2010 , pp. 376 - 384
Copyright
Copyright © Proprietors of Journal of Dairy Research 2010

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References

Allen, MS 1997 Relationship between fermentation acid production in the rumen and the requirement for physically effective fibre. Journal of Dairy Science 80 1447–1462CrossRefGoogle Scholar
AlZahal, O, Or-Rashid, MM, Greenwood, SL, Douglas, MS & McBride, BW 2009 The effect of dietary fibre level on milk fat concentration and fatty acid profile of cows fed diets containing low levels of polyunsaturated fatty acids. Journal of Dairy Science 92 1108–1116CrossRefGoogle ScholarPubMed
AlZahal, O, Rustomo, B, Odongo, NE, Duffield, TF & McBride, BW 2007 Technical note: A system for continuous recording of ruminal pH in cattle. Journal of Animal Science 85 213–217CrossRefGoogle ScholarPubMed
Bauman, DE & Griinari, JM 2001 Regulation and nutritional manipulation of milk fat: low-fat milk syndrome. Livestock Production Science 70 15–29CrossRefGoogle Scholar
Bauman, DE & Griinari, JM 2003 Nutritional regulation of milk fat synthesis. Annual Review of Nutrition 23 203–227CrossRefGoogle ScholarPubMed
Bauman, DE, Corl, BA & Peterson, DG 2003 The biology of conjugated linoleic acids in ruminants. pp. 146–174 In: Advances in conjugated linoleic acid research, vol 2 (Eds Sebedio, JL, Christie, WW) Champaign, IL., USA: AOCS PressGoogle Scholar
Baumgard, LH, Corl, BA, Dwyer, DA, Sæbø, A & Bauman, DE 2000 Identification of the conjugated linoleic acid isomer that inhibits milk fat synthesis. American Journal of Physiology-Regulatory Integrative and Comparative Physiology 278 R179–R184CrossRefGoogle ScholarPubMed
Davis, CL & Brown, RE 1970 Low-fat milk syndrome. pp 546–565 In: Digestion and metabolism in the ruminant (Ed Phillipson, AT) Newcastle Upon Tyne, UK.:Oriel PressGoogle Scholar
Gentile, G, Cinotti, S, Ferri, S & Famigli-Bergamini, P 1986 Nutritional acidosis and technological characteristics of milk in high producing dairy cows. pp 823 in Proceeding of 14th World Congress on Diseases of Cattle (Eds Harigan, PJ & Monaghan, ML) Dublin, IrelandGoogle Scholar
Griinari, JM & Bauman, DE 1999 Biosynthesis of conjugated linoleic acid and its incorporation into meat and milk in ruminants. pp 180–200 In Advances in conjugated linoleic acid research, Vol 1 (Eds Yurawecz, MP, Mossoba, MM, Kramer, JKG, Pariza, MW & Nelson, GJ) Champaign, IL., USA: AOCS PressGoogle Scholar
Griinari, JM, Corl, BA, Lacy, SH, Chouinard, PY, Nurmela, KV & Bauman, DE 2000 Conjugated linoleic acid is synthesized endogenously in lactating dairy cows by Delta(9)-desaturase. Journal of Nutrition 130 2285–91CrossRefGoogle ScholarPubMed
Jenkins, TC, Wallace, RJ, Moate, PJ & Mosley, EE 2008 Recent advances in biohydrogenation of unsaturated fatty acids within rumen microbial ecosystem. Journal of Animal Science 86 397–412CrossRefGoogle ScholarPubMed
Kadegowda, AKG, Piperova, LS & Erdman, RA 2008 Principal component and multivariate analysis of milk long-chain fatty acid composition during diet-induced milk fat depression. Journal of Dairy Science 91 749–759CrossRefGoogle ScholarPubMed
Kepler, CR & Tove, SB 1967 Biohydrogenation of unsaturated fatty acids: Purification and properties of a linoleate Δ12-cis,Δ11-trans isomerase form Butyrivibrio Fibrisolvens. The Journal of Biological Chemistry 242 5686–5692CrossRefGoogle Scholar
Kononoff, PJ, Heinrichs, AJ & Buckmaster, DR 2003 Modification of the Penn State forage and total mixed ration particle separator and the effects of moisture content on its measurements. Journal of Dairy Science 86 1858–63CrossRefGoogle ScholarPubMed
Littell, RC, Milliken, GA, Stroup, WW & Wolfinger, RD 1996 SAS system for mixed models. Cary, NC., USA: SAS Inst. Inc.Google Scholar
Lock, AL, Tyburczy, C, Dwyer, DA, Harvatine, KJ, Destaillats, F, Mouloungui, Z, Candy, L & Bauman, DE 2007 Trans-10 octadecenoic acid does not reduce milk fat synthesis in dairy cows. Journal of Nutrition 137 71–76CrossRefGoogle Scholar
Loor, JJ, Ferlay, A, Ollier, A, Ueda, K, Doreau, M & Chilliard, Y 2005 High-concentrate diets and polyunsaturated oils alter trans and conjugated isomers in bovine rumen, blood, and milk. Journal of Dairy Science 88 3986–99CrossRefGoogle ScholarPubMed
Mertens, DR 1997 Creating a system for meeting the fibre requirements of dairy cows. Journal of Dairy Science 80 1463–81CrossRefGoogle ScholarPubMed
Or-Rashid, M, Odongo, NE, Wright, TC, & McBride, BW 2009 Fatty acid profile of bovine milk naturally enhanced with docosahexaenoic acid. Journal of Agriculture and Food Chemistry 57 1366–1371CrossRefGoogle ScholarPubMed
Perfield, JW 2nd, Lock, AL, Griinari, JM, Sæbø, A, Delmonte, P, Dwyer, DA & Bauman, DE 2007 Trans-9, cis-11 conjugated linoleic acid reduces milk fat synthesis in lactating dairy cows. Journal of Dairy Science 90 2211–8CrossRefGoogle ScholarPubMed
Rindsig, RB & Schultz, LH 1974 Effects of abomasal infusions of safflower oil or elaidic acid on blood lipids and milk fat in dairy cows. Journal of Dairy Science 57 1459–66CrossRefGoogle ScholarPubMed
Roy, A, Ferlay, A, Shingfield, KJ & Chilliard, Y 2006 Examination of the persistency of milk fatty acid composition responses to plant oils in cows given different basal diets, with particular emphasis on trans-C-18:1 fatty acids and isomers of conjugated linoleic acid. Animal Science 82 479–492CrossRefGoogle Scholar
Russell, JB & Dombrowski, DB 1980 Effect of pH on the efficiency of growth by pure cultures of rumen bacteria in continuous culture. Applied and Environmental Microbiology 39 604–610CrossRefGoogle ScholarPubMed
Russell, JB & Wilson, DB 1996 Why are ruminal cellulolytic bacteria unable to digest cellulose at low pH? Journal of Dairy Science 79 1503–1509CrossRefGoogle ScholarPubMed
Rustomo, B, AlZahal, O, Cant, JP, Fan, MZ, Duffield, TF, Odongo, NE & McBride, BW 2006a Acidogenic value of feeds. II. Effects of rumen acid load from feeds on dry matter intake, ruminal pH, fibre degradability and milk production in the lactating dairy cow. Canadian Journal of Animal Science 86 119–126Google Scholar
Rustomo, B, AlZahal, O, Odongo, NE, Duffield, TF & McBride, BW 2006b Effects of rumen acid load from feed and forage particle size on ruminal pH and dry matter intake in the lactating dairy cow. Journal of Dairy Science 89 4758–4768CrossRefGoogle ScholarPubMed
Sæbø, A, Sæbø, PC, Griinari, JM & Shingfield, KJ 2005 Effect of abomasal infusions of geometric isomers of 10, 12 conjugated synthesis linoleic acid on milk fat in dairy cows. Lipids 40 823–832CrossRefGoogle Scholar
SAS Statistical Analysis system, release 9·3. 2004 Cary, NC., USA: SAS Inst Inc.Google Scholar
Shingfield, KJ, Ghvenjarvi, S, Toivonen, V, Vanhatalo, A, Huhtanen, P & Griinari, JM 2008 Effect of incremental levels of sunflower-seed oil in the diet on ruminal lipid metabolism in lactating cows. British Journal of Nutrition 99 971–983CrossRefGoogle ScholarPubMed
Shingfield, KJ, Reynolds, CK, Lupoli, B, Toivonen, V, Yurawecz, MP, Delmonte, P, Griinari, JM, Grandison, AS & Beever, DE 2005 Effect of forage type and proportion of concentrate in the diet on milk fatty acid composition in cows given sunflower oil and fish oil. Animal Science 80 225–238CrossRefGoogle Scholar
Shingfield, KJ, Sæbø, A, Sæbø, P-C, Toivonen, T & Griinari, JM 2009 Effects of Abomasal infusions of a mixture of octadecenoic acids on milk fat synthesis in lactating cows. Journal of Dairy Science 92 4317–4329CrossRefGoogle ScholarPubMed
Stone, WC 1999 The effect of subclinical acidosis on milk components. pp 40–46 in Cornell Nutrition Conference for Feed Manufacturers. Ithaca NY., USA: Cornell UniversityGoogle Scholar
VanNevel, CJ & Demeyer, DI 1996 Influence of pH on lipolysis and biohydrogenation of soybean oil by rumen contents in vitro. Reproduction Nutrition Development 36 53–63CrossRefGoogle Scholar
Wallace, RJ, McKain, N, Shingfield, KJ & Devillard, E 2007 Isomers of conjugated linoleic acids are synthesized via different mechanisms in ruminal digesta and bacteria. Journal of Lipid Research 48 2247–2254CrossRefGoogle ScholarPubMed
Zebeli, Q, Dijkstra, J, Tafaj, M, Steingass, H, Ametaj, BN & Drochner, W 2008 Modeling the adequacy of dietary fibre in dairy cows based on the responses of ruminal pH and milk fat production to composition of the diet. Journal of Dairy Science 91 2046–2066CrossRefGoogle ScholarPubMed