References

Baldi, A. and L. Pinotti, 2006. Choline metabolism in high-producing dairy cows: Metabolic and nutritional basis. Can. J. Anim. Sci., 86: 207-212.
CrossRef  |  Direct Link  |  

Baldi, A., A. Campagnoli, V. Dell'Orto, L. Pinotti, R. Rebucci and L. Sangalli, 2004. Metabolism in periparturient dairy cows fed rumen-protected choline. J. Anim. Feed Sci., 13: 551-554.
Direct Link  |  

Basoglu, A., M. Sevinc and O.K. Mahmut, 1998. Peri and postparturient concentrations of lipid lipoprotein insulin and glucose in normal dairy cows. Turk. J. Vet. Anim. Sci., 22: 141-144.
Direct Link  |  

Bionaz, M., E. Trevisi, L. Calamari, F. Librandi, A. Ferrari and G. Bertoni, 2007. Plasma paraoxonase, health, inflammatory conditions and liver function in transition dairy cows. J. Dairy Sci., 90: 1740-1750.
CrossRef  |  

Butler, S.T., S.H. Pelton and W.R. Butler, 2006. Energy balance, metabolic status and the first postpartum ovarian follicle wave in cows administered propylene glycol. J. Dairy Sci., 89: 2938-2951.
PubMed  |  Direct Link  |  

Christensen, J.O., R.R. Grummer, F.E. Rasmussen and S.J. Bertics, 1997. Effect of method of delivery of propylene glycol on plasma metabolites of feed-restricted cattle. J. Dairy Sci., 80: 563-568.
PubMed  |  

Chung, Y.H., N.E. Brown, C.M. Martinez, T.W. Cassidy and G.A. Varga, 2009. Effects of rumen-protected choline and dry propylene glycol on feed intake and blood parameters for Holstein dairy cows in early lactation. J. Dairy Sci., 92: 2729-2736.
CrossRef  |  

Cozzi, G., L. Ravarotto, F. Gottardo, A.L. Stefani and B. Contiero et al., 2011. Reference values for blood parameters in Holstein dairy cows: Effects of parity, stage of lactation and season of production. J. Dairy Sci., 94: 3895-3901.

Cozzi, G., P. Berzaghi, F. Gottordo, G. Gabai and I. Andrighetto, 1996. Effects of feeding propylene glycol to mid-lactating dairy cows. Anim. Feed Sci. Technol., 64: 43-51.
CrossRef  |  

Duffield, T.F., D. Sandals, K. Leslie, K.D. Lissemore and B.W. McBride et al., 1998. Efficacy of monensin for the prevention of subclinical ketosis in lactating dairy cows. J. Dairy Sci., 81: 2866-2873.
CrossRef  |  

Gruffat, D., D. Durand, B. Graulet and D. Bauchart, 1996. Regulation of VLDL synthesis and secretion in the liver. Reprod. Nutr. Dev., 36: 375-389.
PubMed  |  Direct Link  |  

Grummer, R.R., J.C. Winkler, S.J. Bertics and V.A. Studer, 1994. Effect of propylene glycol dosage during feed restriction on metabolites in blood of prepartum Holstein heifers. J. Dairy Sci., 77: 3618-3623.
CrossRef  |  

Grunwaldt, E.G., J.C. Guevara, O.R. Estevez, A. Vicente and H. Rousselle et al., 2005. Biochemical and haematological measurements in beef cattle in Mendoza Plain Rangelands (Argentina). Trop. Anim. Health Prod., 37: 527-540.
CrossRef  |  

Kabu, M. and T. Civelek, 2012. Effects of propylene glycol, methionine and sodium borate on metabolic profile in dairy cattle during periparturient period. Revue de Medecine Veterinaire, 163: 419-430.
Direct Link  |  

Kristensen, N.B. and B.M.L. Raun, 2007. Ruminal and intermediary metabolism of propylene glycol in lactating holstein cows. J. Dairy Sci., 90: 4707-4717.
CrossRef  |  Direct Link  |  

Mikula, R., W. Nowak, J.M. Jaskowaski, P. Mackowiak, E. Pruszynska and J. Wlodarek, 2008. Effects of propylene glycol supplementation on blood biochemical parameters in dairy cows. J. Bull. Vet. Instit. Pulawy, 52: 461-466.
Direct Link  |  

Nielsen, N.I. and K.L. Ingvartsen, 2004. Propylene glycol for dairy cows: A review of the metabolism of propylene glycol and its effects on physiological parameters, feed intake, milk production and risk of ketosis. Anim. Feed Sci. Technol., 115: 191-213.
CrossRef  |  Direct Link  |  

Oetzel, G.R., 2004. Monitoring and testing dairy herds for metabolic disease. Vet. Clin. North Am. Food Anim. Pract., 20: 651-674.
Direct Link  |  

Piepenbrink, M.S. and T.R. Overton, 2003. Liver metabolism and production of cows fed increasing amounts of rumen-protected choline during the periparturient period. J. Dairy Sci., 86: 1722-1733.
CrossRef  |  PubMed  |  Direct Link  |  

Pinotti, L., A. Baldi and V. Dell'Orto, 2002. Comparative mammalian choline metabolism with emphasis on the high-yielding dairy cow. Nutr. Res. Rev., 15: 315-331.
PubMed  |  

Pysera, B. and A. Opalka, 2000. The effect of gestation and lactation of dairy cows on lipid and lipoprotein patterns and composition in serum during winter and summer feeding. J. Anim. Feed Sci., 9: 411-424.
Direct Link  |  

Reinhardt, T.A., J.D. Lippolis, B.J. McCluskey, J.P. Goff and R.L. Horst, 2011. Prevalence of subclinical hypocalcemia in dairy herds. Vet. J., 188: 122-124.
CrossRef  |  

Rukkwamsuk, T. and S. Panneum, 2010. Effect of oral administration of propylene glycol during periparturient period on blood biochemical parameters and liver triacylglycerol accumulation in postparturient dairy cows. Afr. J. Agric. Res., 5: 3239-3245.
Direct Link  |  

Rukkwasmsuk, T., S. Rungruang A. Choothesa and T. Wensing, 2005. Effect of propylene glycol on fatty liver development and hepatic fructose 1,6 biphosphatase activity in periparturient daity cows. Livestock Prod. Sci., 95: 95-102.
CrossRef  |  Direct Link  |  

Seifi, H.A., M. Gorji-Dooz, M. Mohri, B. Dalir-Naghadeh and N. Farzaneh, 2007. Variations of energy-related biochemical metabolites during transition period in dairy cows. Comp. Clin. Pathol., 16: 253-258.
CrossRef  |  

Sobiech, P., S. Milewski and S. Zdunczyk, 2008. Yield and composition of milk and blood biochemical components of ewes nursing a single lamb or twins. Bull. Vet. Inst. Pulawy, 52: 591-596.
Direct Link  |  

Steen, A., 2001. Field study of dairy cows with reduced appetite in early lactation: Clinical examinations, blood and rumen fluid analyses. Acta Vet. Scand., 42: 219-228.
Direct Link  |  

Stephenson, K.A., I.J. Lean, M.L. Hyde, M.A. Curtis, J.K. Garvin and L.B. Lowe, 1997. Effects of monensin on the metabolism of periparturient dairy cows. J. Dairy Sci., 80: 830-837.
Direct Link  |  

Van Saun, R.J., 2005. Use and interpretation of pooled metabolic profiles for evaluating transition cow health status. Proc. Am. Assoc. Bov. Pract., 38: 180-180.

Van den Top, A.M., T. Wensing, M.J.H. Geelen, G.H. Wenting, A.T. van't Kloster and A.C. Beynen, 1995. Time trends of plasma lipids and enzymes synthesizing hepatic triacylglycerol during postpartum development of fatty liver in dairy cows. J. Dairy Sci., 78: 2208-2220.
CrossRef  |  

Vazquez-Anon, M., S. Bertics, M. Luck and R.R. Grummer, 1994. Peripartum liver triglyceride and plasma metabolites in dairy cows. J. Dairy Sci., 77: 1521-1528.
CrossRef  |  

Vergara, C.F., D. Dopfer, N.B. Cook, K.V. Nordlund, J.A.A. McArt, D.V. Nydam and G.R. Oetzel, 2014. Risk factors for postpartum problems in dairy cows: Explanatory and predictive modeling. J. Dairy Sci., 97: 4127-4140.
CrossRef  |  

Whitaker, D.A., 1997. Interpretation of metabolic profiles in dairy cows. Cattle Pract., 5: 57-60.

Wildman, E.E., G.M. Jones, P.E. Wagner, R.L. Boman, H.F. Troutt Jr. and T.N. Lesch, 1982. A dairy cow body condition scoring system and its relationship to selected production characteristics. J. Dairy Sci., 65: 495-501.
CrossRef  |  Direct Link  |  

Zeisel, S.H. and K.A. da Costa, 2009. Choline: An essential nutrient for public health. Nutr. Rev., 67: 615-623.
CrossRef  |