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RISS 인기검색어
- 검색키워드
- 저자 : Rengsirikul, B. (검색결과 1 건)
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A STUDY ON THE MINERAL STATUS OF BEEF AND DAIRY CATTLE AND BUFFALO IN CENTRAL THAILAND
Kumagai, H.,Swasdiphanich, S.,Prucsasri, P.,Yimmongkol, S.,Rengsirikul, B.,Thammageeratiwong, P. Asian Australasian Association of Animal Productio 1996 Animal Bioscience Vol.9 No.5
Nutritional status of minerals of beef and dairy cattle and buffalo in central Thailand were investigated by evaluating the mineral concentrations in feedstuff and blood plasma of animals. Three crossbred beef cow herds, a native cow herd, a buffalo female herd and 3 dairy cattle herds which consisted of the herds of lactating cows, dry cows and heifers were studied in both rainy and hot seasons. Low Na concentrations (<0.07% on a dry matter basis) in pasture samples from the fields for a cross bred beef cow were observed. Copper concentrations in all the pasture samples ranged from 3.7 to 13.5 mg/kg. Iron and Se concentration in pasture samples had a wide variety ranging from 185 to 1,345 and 0.033 to 1.127 mg/kg, respectively. The concentrations of K, Ca, Mg, P, Zn and Mn in total diets were higher than the requirements for beef and dairy cattle. Some animals with subnormal plasma Cu concentrations(< $0.65{\mu}g/ml$) existed in each herd. The animals which showed subnormal plasma Se concentrations(< $0.03{\mu}g/ml$) were observed in beef cow herds. The concentrations of Ca, Mg and Zn in plasma of animals were normal. Attention should be paid to the deficiencies in Na, Cu and Se of the animals in central Thailand.
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