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Effect of Feeding Strategies on Milk Production of Holstein Dairy Cows Managed by Small-Farmers Alpine Grassland in Korea
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논문 기본 정보

Type
Academic journal
Author
Kim, Tae-Il (Dairy Science Division, National Institute of Animal Science, Rural Development Administration) Mayakrishnan, Vijayakumar (Dairy Science Division, National Institute of Animal Science, Rural Development Administration) Lim, Dong-Hyun (Dairy Science Division, National Institute of Animal Science, Rural Development Administration)
Journal
THE KOREAN SOCIETY OF GRASSLSND SCIENCE 한국초지조사료학회지 한국초지조사료학회지 제38권 제3호 KCI Accredited Journals
Published
2018.1
Pages
165 - 169 (5page)

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Effect of Feeding Strategies on Milk Production of Holstein Dairy Cows Managed by Small-Farmers Alpine Grassland in Korea
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The main objective of this experiment was to investigate effects of two different feeding systems on body weight, milk yield, milk composition, and mineral and fatty acids content of Holstein dairy cows' milk. Sixteen of 25 months-old Holstein dairy cows were assigned to two groups (n=8) to study effects of the feeding system for 150 days. Two feeding systems were compared for five months; Group 1 was housed indoors and mainly fed a concentrate diet, Group 2 was maintained outdoors for five-seven hours/day on various kinds grass in a pasture. The experiment was conducted June-October 2017. Results revealed the indoor-fed cows had higher body weight, that was significant compared with the outdoor-based feeding system of Holstein dairy cows (p<0.05). Indoor-raised milking cows had higher milk yield (32.45 kg) as compared with pasture-raised milk yield (26.44 kg). Cows fed indoors significantly increased milk yield, total protein content, lactose, citric acid level, and lowered level of total solid and free fatty acids relative to the pasture-fed milking cows (p>0.05). There were higher levels of mineral content and fatty acid content in the milk of indoor-fed dairy cows than the pasture-raised dairy cows (p>0.05). Our study results demonstrated the potential benefits of the indoor feeding system for increased body weight, milk yield, mineral and fatty acids content summer through autumn when low pasture growth rates and quality may otherwise limit production.
#Holstein dairy cow #Feeding system #Average daily gain #Milk yield #Minerals #Fatty acids

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Ametaj, B.N. / 2005 / Strong relationships between mediators of the acute phase response and fatty liver in dairy cows / Canadian Journal of Animal Science 85:165~175 Crossref FAO / 2013 / The State of Food and Agriculture google schola Fulkerson, W.J. / 2008 / Holstein-Friesian dairy cows under a predominantly grazing system: interaction between genotype and environment / Journal of Dairy Science 91:826~839 Crossref Hur, S.N. / 1999 / Sustainable roughage production in Korea / Asian-Australasian Journal of Animal Science 12:445~448 Crossref Kaufmann, L.D. / 2011 / Energy expenditure of grazing cows and cows fed grass indoors as determined by the $^{13}Cbicarbonatedilutiontechniqueusinganautomaticbloodsamplingsystem$ / Journal of Dairy Science 94:1989~2000 Crossref

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