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Soybean oil and calcium salts of fatty acids as fat sources for Holstein dairy cows in transition period

Óleo de soja e sais de cálcio de ácidos graxos como fonte de gordura para vacas Holandesas no período de transição

Abstracts

This study aimed to evaluate the effects of using different lipid sources in diets for dairy cows during the transition period and early lactation on productive performance and physiological parameters in Holstein cows. The cows were fed with the following diets: 1) control; 2) Refined soybean oil; 3) Calcium salts of unsaturated fatty acids (Megalac-E). Diets were formulated to meet the nutritional requirements of cows during the pre-partum and postpartum period. The experimental diets affected the dry matter intake, body weight, body condition score, and energy balance in the postpartum period. The experimental diets did not affect the biochemical parameters in serum: glucose, total protein, albumin, urea, serum urea nitrogen, total cholesterol, HDL-cholesterol, non-esterified fatty acids, β-hydroxybutyrate, aspartate aminotransferase, γ-glutamyl transferase, alkaline phosphatase, also not being observed differences between the contrasts analyzed. The lipid sources soybean oil and calcium salts not directly influence the plasmatic physiological parameters of dairy cows in the period transition. But, fat supplementation in the transition period resulted in a better metabolic status and productive performance, mainly improving energy balance post-partum

dairy cows; lipids metabolism; metabolic profile; puerperium


Objetivou-se com este estudo avaliar os efeitos do uso de diferentes fontes de ácido graxo ômega 6 na dieta de vacas leiteiras no período de transição e início da lactação sobre o desempenho produtivo e bioquímico em vacas da raça Holandesa. As vacas foram alimentadas com as seguintes dietas: 1) controle, 2) óleo de soja refinado, 3) os sais de cálcio de ácidos graxos insaturados (Megalac-E). As dietas foram formuladas para atender às exigências nutricionais das vacas durante o período de pré-parto e pós-parto, dentro de cada grupo experimental. As dietas experimentais afetaram o consumo de matéria seca, o peso corporal, escore de condição corporal e equilíbrio de energia no período pós-parto. As dietas experimentais não afetaram os parâmetros bioquímicos no soro: glicose, proteína total, albumina, uréia, uréia sérica, colesterol total, HDL-colesterol, ácidos graxos não esterificados, β-hidroxibutirato, aspartato aminotransferase, γ-glutamil transferase, fosfatase alcalina, também não sendo observadas diferenças entre os contrastes analisados. As fontes de ácido graxo ômega 6 não influenciaram diretamente o bioquímico de vacas leiteiras no período de transição.

vacas leiteiras; metabolismo lipídico; perfil metabólico; puerpério


  • ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS - AOAC. Official Methods of Analysis 17th ed. Gaithersburg, 2000.
  • ADEWUYI, A.A.; GRUYS, E.; Van EERDENBURG, F.J.C.M. Non esterified fatty acids (NEFA) in dairy cattle. A review. Veterinary Reviews, v.27, p.117-126, 2005.
  • BERTICS, S.J.; GRUMMER, R.R.; CADORNIGA-VALINO, C.; STODDARD, E.E. Effect of prepartum dry matter intake on liver triglyceride concentration and early lactation. Journal of Dairy Science, v.75, p.1914-1922, 1992.
  • BRUSS, M.L. Lipids and ketones. In: KANEKO, J.J.; HARVEY, J.W.; BRUSS, M.L. (Eds.). Clinical Biochemistry of Domestic Animals 5thed. San Diego: Academic Press, 2007. p.83-115.
  • BUTLER, W.R. Nutrition, negative energy balance and fertility in the postpartum dairy cow. Cattle Practice, v.13, p.13-18, 2005.
  • DRACKLEY, J.K. Biology of dairy cows during the transition period: the final frontier. Journal of Dairy Science, v.82, p.2259-2273, 1999.
  • DUSKE, K.; HAMMON, H.M.; LANGHOF, A.K.; BELLMANN, O.; LOSAND, B.; NÜRNBERG, K.; NÜRNBERG, G.; SAUERWEIN, H.; SEYFERT, H.M.; METGES, C.C. Metabolism and lactation performance in dairy cows fed a diet containing rumen-protected fat during the last twelve weeks of gestation. Journal of Dairy Science, v.92, p.1670-1684, 2009.
  • GRUM, D.E., HANSEN, L.R., DRACKLEY, J.K. Peroxisomal & oxidation of fatty acids in bovine and rat liver. Comparative Physiology and Biochemical, v.109, p.281-292, 1994.
  • INGVARTSEN, K.L. Feeding- and management-related diseases in the transition cow: Physiological adaptations around calving and strategies to reduce feeding-related diseases. Animal Feed Science and Technology, v.126, p.175-213, 2006.
  • NATIONAL RESEARCH COUNCIL - NRC. Nutrient requirements of dairy cattle 7.ed. Washinton, D.C.: National Academic Press, 2001. 381p.
  • ONETTI, S.G.; GRUMMER, R.R. Response of lactating cows to three supplemental fat sources as affected by forage in the diet and stage of lactation: a meta-analysis of literature. Animal Feed Science and Technology, v.115, p.65-82, 2004.
  • QUIROZ-ROCHA, G.F., LEBLANC, S.J.; DUFFIELD, T.F.; WOOD, D.; LESLIE, K.E.; JACOBS, R.M. Reference limits for biochemical and hematological analytes of dairy cows one week before and one week after parturition. Canadian Journal Veterinary Research, v.12, p.225-232, 2009.
  • RENNÓ, F.P.; FREITAS JÚNIOR, J.E.; GANDRA,J.R.; VERDURICO,L.C.; SANTOS,M.V.; BARLETTA ,R.V.; VENTURELLI,B.C.; VILELA,F.G. Fatty acid profile and composition of milk protein fraction in dairy cows fed long-chain unsaturated fatty acids during the transition period. Revista Brasileira de Zootecnia, v.42, p.813-823, 2013
  • SANTOS, A.D.F.; TORRES, C.A.A.; RENNÓ, F.R.; DRUMOND, M.R.S.; FEITAS JUNIOR, J.E. Use of soybean oil for dairy cows during transition period: Intake, milk yield and composition. Revista Brasileira de Zootecnia, v.38, p.1363-1371, 2009.
  • STATISTICAL ANALYSIS SYSTEM. User's Guide Release 9.1. Cary: SAS Institute, 2004.
  • SILVESTRE, F.T.; CARVALHO, T.S.M.; CRAWFORD, P.C.; SANTOS, J.E.P.; STAPLES, C.R.; JENKINS, T.; THATCHER, W.W. Effects of differential supplementation of fatty acids during the peripartum and breeding periods of Holstein cows: II. Neutrophil fatty acids and function, and acute phase proteins. Journal of Dairy Science, v.94, p.2285-2301, 2011.
  • VAN KNEGSEL, A. T. M.; VAN DEN BRAND H.; DIJKSTRA, J.; VAN STRAALEN, W. M.; HEETKAMP, M. J.; TAMMINGA, S.; KEMP, B. Dietary energy source in dairy cows in early lactation: energy partitioning and milk composition. Journal of Dairy Science, v. 90, p.1467-1476, 2007.
  • ZACHUT, M.; ARIELI, A.; LEHRER, H.; LIVSHITZ, L.; YAKOBY, S.; MOALLEM, U. Effects of increased supplementation of n-3 fatty acids to transition dairy cows on performance and fatty acid profile in plasma, adipose tissue, and milk fat. Journal of Dairy Science, v.93, p.5877-5889, 2010.

Publication Dates

  • Publication in this collection
    08 May 2014
  • Date of issue
    Mar 2014

History

  • Accepted
    13 Mar 2014
  • Received
    24 Sept 2013
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