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Direct Effects of Copper and Selenium Supplementation and Its Subsequent Effects on Other Plasma Minerals, Body Weight and Hematocrit Count of Grazing Philippine Goats

  • Orden, E.A. (Faculty of Life and Environmental Science, Shimane University) ;
  • Serra, A.B. (Department of Animal Science, Central Luzon State University) ;
  • Serra, S.D. (Department of Animal Science, Central Luzon State University) ;
  • Nakamura, K. (Faculty of Life and Environmental Science, Shimane University) ;
  • Cruz, L.C. (Department of Animal Science, Central Luzon State University) ;
  • Fujihara, T. (Faculty of Life and Environmental Science, Shimane University)
  • Received : 1999.03.05
  • Accepted : 1999.07.12
  • Published : 2000.03.01

Abstract

The administration of soluble glass bolus (SGB) with cobalt (Co), selenium (Se) and copper (Cu), among 50 upgraded does in the farm of Central Luzon State University, Philippines, was effective in improving the mineral status of the animals. After one year, blood Se and plasma Cu had been significantly increased; subsequently plasma molybdenum (Mo) level had been reduced, but other macro-minerals were not affected. Soluble glass bolus supplementation did not affect plasma calcium (Ca), magnesium (Mg), and sodium (Na), although the treated does had higher plasma phosphorus (P), potassium (K), and zinc (Zn) in some parts of the year. Hematocrit count of the animals was also improved reaching 32% level after 9 months; although it was still 6% below the lower limit of a normal range of 38 to 45%. The desired improvement in Se, Cu and Mo was not able to influence live weight among the animals. After one year, body weight was not significantly different from the control group of animals. Nevertheless, the study showed the effectiveness of SGB in improving Cu and Se levels, and subsequently reducing the plasma Mo levels of grazing goats in a typical Philippine farm.

Keywords

SGB;Philippine Goats;Copper;Selenium;Molybdenum;Hematocrit;Liveweight

Cited by

  1. Effect of soluble glass bolus administration on the blood selenium concentration in grazing Philippine goats under backyard conditions vol.77, pp.6, 2006, https://doi.org/10.1111/j.1740-0929.2006.00391.x
  2. Effects of Dietary Selenium, Sulphur and Copper Levels on Selenium Concentration in the Serum and Liver of Lamb vol.27, pp.8, 2014, https://doi.org/10.5713/ajas.2013.13818