Optimizing Starch Nutrition for Rhythmic Dairy Cattle: The Sustaining Economic and Environmental Challenges of Today's Industry
الموضوعات :
A. Nikkhah
1
(Ferdows Pars Agriculture and Livestock Holding Co., Mostazafan Foundation, Tehran, Iran|Department of Animal Science, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran)
الکلمات المفتاحية: economics, rhythm, environment, dairy cow, starch, Cereal,
ملخص المقالة :
Starch makes up a considerable portion of dairy diets (up to >30%). Thus, starch utilization efficiency immensely affects rumen function, animal performance and health, farm economics, and environmental quality. It is crucial to take into account the ruminal digestion rhythms of different cereals when formulating diets for optimal dry matter intake (DMI), milk production, and animal health. Optimizing the physical processing of cereal grains is required for maximal microbial protein yield and minimal sub-acute rumen acidosis (SARA). Physical processing of barley and corn grains, as the two most popular cereals in dairy diets, needs more contemplation towards synchronizing rhythms of starch and protein fermentation in the rumen. Optimizing the dietary inclusion rates of cereal grains and starch has been a key missing part in improving nutrient efficiency and gastrointestinal health and integrity. Global guidelines need to be developed to precisely address optimal dietary inclusion rates of different cereal grains. Setting such guidelines becomes more important when high-starch corn silage is major forage in the diet. Monitoring circadian rhythms of rumen fermentation when differently processed cereal grains are fed will allow developing feeding strategies that minimize the occurrence of SARA. The minimized SARA will enable decreasing nutrient loss across portal drained viscera (PDV) and splanchnic tissues. An innovative global philosophy is being developed to rely more on oil seeds and less on starchy grains in feeding dairy cows. To practically prevent SARA, physical processing can be partly effective, but essentially the dietary inclusion rate of differently processed cereal grains needs to be optimized. Lessons are to be learnt from human nutrition. Although metabolism differs between ruminants and non-ruminants, carbohydrates especially sugars and starch are under scrutiny and need to be limited in human diets to minimize risks from obesity and diabetes. Education, education and education is the final frontier for success in improving rumen and animal health as far as starch nutrition is concerned. For now, it is recommended to feed dairy cows no more than 25-28% starch (DM based). Future research will focus on establishing optimal dietary inclusion rates of differently processed barley and corn/sorghum grains for cows of different production levels and lactation stages. Rumen fermentation circadian rhythmicity and environmental considerations including decreased methane production and urinary and fecal nitrogen excretion will be discussed.
Alexander C. and Rietschel E.T. (2001). Invited review: Bacterial lipopolysaccharides and innate immunity. J. Endotoxin Res. 7, 167-202.
Arieli A. (1998). Whole cottonseed in dairy cattle feeding: A review. Anim. Feed Sci. Technol. 72, 97-110.
Aude Y.W., Agatston A.S., Lopez-Jimenez F., Lieberman E.H., Almon M., Hansen M., Rojas G., Gervasio A. Lamas L. and Hennekens C.H. (2004). The national cholesterol education program diet vs. a diet lower in carbohydrates and higher in protein and monounsaturated Fat: A randomized trial. Arch. Intern. Med. 164, 2141-2146.
Beauchemin K.A. and Rode L.M. (1997). Minimum versus optimum concentrations of fiber in dairy cow diets based on barley silage and concentrates of barley or corn. J. Dairy Sci. 80, 1629-1639.
Beauchemin K.A., McGinn S.M., Benchaar C. and Holtshausen L. (2009). Crushed sunflower, flax or canola seeds in lactating dairy cow diets: Effects on methane production, rumen fermentation and milk production. J. Dairy Sci. 92, 2118-2127.
Bernstein A.M., Titgemeier B., Jirkpatrick K., Golublic M. and Roizen M.F. (2013). Major cereal grain fibers and psyllium in relation to cardiovascular health. Nutrition. 15, 1471-1487.
FAOSTAT. (2017). Database of the Food and Agricultural Organization (FAO) of the United Nations. Availabe at: http://www.fao.org/faostat/en/#home.
Hall M.B. and Huntington G.B. (2008). Nutrient synchrony: Sound in theory, elusive in practice. J. Anim. Sci. 86, 287-292.
Humer E., Petri R.M., Aschenbach J.R., Bradford B.J., Penner G.B., Tafaj M., Südekum K.H. and Zebeli Q. (2018). Invited review: Practical feeding management recommendations to mitigate the risk of subacute ruminal acidosis in dairy cattle. J. Dairy Sci. 101, 1-17.
Huntington G.B. (1997). Starch utilization by ruminants: From basics to the bunk. J. Anim. Sci. 75, 852-867.
Karam-Babaei M., Mirzaei H. and Nikkhah A. (2018). Cereal level and source effects on rumen fermentation, colostrum and milk properties, and blood metabolites in periparturient ewes. Anim. 13(6), 1165-1172.
Kowsar R., Ghorbani G.R., Alikhani M., Khorvash M. and Nikkhah A. (2008). Corn silage partially replacing short-length alfalfa hay to optimize forage use in total mixed rations for lactating cows. J. Dairy Sci. 91, 4755-4764.
La Fleur S.E., Kalsbeek A., Wortel J. and Buijs R.M. (1999). Suprachiasmatic nucleus generated rhythm in basal glucose concentrations. J. Neuroendocrinol. 11, 643-652.
La Fleur S.E., Kalsbeek A., Wortel J., Fekkes M.I. andBuijs R.M. (2001). A daily rhythm in glucose tolerance: a role for the suprachiasmatic nucleus. Diabetes. 50, 1237-1243.
Ludwig D.S. and Ebbeling C.B. (2018). The Carbohydrate-Insulin Model of Obesity: Beyond “Calories In, Calories Out”. JAMA Intern. Med. 178, 1098-1103.
McKevith B. (2004). Briefing paper: Nutritional aspects of cereals. Nutr. Bull. 29, 111-142.
Nikkhah A. (2013). Chronophysiology of ruminant feeding behavior and metabolism: An evolutionary review. Biol. Rhythm Res. 44, 197-218.
Nikkhah A. (2010). Barley grain for ruminants: A global treasure or tragedy. J. Anim Sci. Biotechnol. 3, 22-29.
Nikkhah A., Furedi C., Kennedy A., Crow G. and Plaizier J. (2008). Effects of feed delivery time on feed intake, rumen fermentation, blood metabolites and productivity of lactating cows. J. Dairy Sci. 91, 1-12.
Nikkhah A., Furedi C., Kennedy A., Wittenberg K. and Plaizier J.C. (2010). Feed delivery at 2100 h vs. 0900 h for lactating dairy cows. Canadian J. Anim. Sci. 91, 113-122.
Nocek J.E. and Tamminga S. (1991). Site of digestion of starch in the gastrointestinal tract of dairy cows and its effect on milk yield and composition. J. Dairy Sci. 74, 3598-3629.
NRC. (2001). Nutrient Requirements of Dairy Cattle. 7th Ed. National Academy Press, Washington, DC., USA.
Oba M. and Allen M.S. (2003). Effects of corn grain conservation method on feeding behavior and productivity of lactating dairy cows at two dietary starch concentrations. J. Dairy Sci. 86, 174-183.
Ørskov E.R. (1986). Starch digestion and utilization in ruminants. J. Anim. Sci. 63, 1624-1633.
Plaizier J.C., Krause D.O., Gozho G.N. and McBride B.W. (2009). Subacute ruminal acidosis in dairy cows: The physiological causes, incidence and consequences. Vet. J. 176, 21-31.
Reynolds C.K. (2002). Economics of visceral energy metabolism in ruminants: Toll keeping or internal revenue service? J. Anim. Sci. 80(2),74-84.
Robinson P.H. (1989). Dynamic aspects of feeding management for dairy cows. J. Dairy Sci. 72, 1179-1185.
Robinson P.H., Gill M. and Kennelly J.J. (1997). Influence of time of feeding a protein meal on ruminal fermentation and forestomach digestion in dairy cows. J. Dairy Sci. 80, 1366-1373.
Sadri H., Ghorbani G., Alikahni M. and Nikkhah A. (2007). Ground, dry-rolled, and steam-processed barley grain for midlactation Holsteins. Anim. Feed Sci. Technol. 138, 195-204.
Sadri H., Ghorbani G., Rahmani H. and Samei A. (2009). Chromium supplementation and substitution of barley grain with corn: Effects on performance and lactation of periparturientdairy cows. J. Dairy Sci. 92, 5411-5418.
Shabi Z., Bruckental I., Zamwell S., Tagari H. and Arieli A. (1999). Effects of extrusion of grain and feeding frequency on rumen fermentation, nutrient digestibility, and milk yield and composition in dairy cows. J. Dairy Sci. 82, 1252-1260.
Sniffen C.J. (2004). Optimizing carbohydrate and amino acid nutrition to maximize milk protein in dairy cows. Pp. 65-84 in Proc. Northeast Dairy Prod. Conf., Liverpool, New York.
Soltani A., Ghorbani G.R., Alikhani M., Samie A.H. and Nikkhah A. (2009). Ground versus steam-rolled barley grain for lactating cows: A clarification into conventional beliefs. J. Dairy Sci. 92, 3299-3305.
Van Soest P.J. (1994). Nutritional Ecology of the Ruminant. Cornell University Press, Ithaca, New York.
Zebeli Q., Aschenbach R.A., Tafaj M., Bogahn J., Ametaj B.N., and Drochner W. (2012). Invited review: Role of physically effective fiber and estimation of dietary fiber adequacy in high-producing dairy cattle. J. Dairy Sci. 95, 1041-1056.
