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April - June 2007 - Kasetsart University

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mineral supplementation suggested by NRC<br />

(1985) but it may not be sufficient to fulfill the<br />

mineral requirement. Moreover, micro minerals<br />

in the soil were below sufficient levels for mineral<br />

supplementation. Individual minerals should be<br />

adjusted to meet a minimum of 50% of the daily<br />

intake requirement of the sheep while formulating<br />

mineral supplement. If the imbalance minerals<br />

were rectified to meet standard mineral mixture<br />

requirement, the soils would be more beneficial<br />

to animals.<br />

Mineral intake and live weight of the sheep<br />

The mineral intake and live weight<br />

change of sheep during the experimental<br />

period are presented in Table 3. The mean daily<br />

mineral intake of sheep supplemented with<br />

mineral soils of Jair, Hermokale, Arabi, Bole and<br />

complete mineral were 18.14, 16.51, 16.02, 11.86<br />

and 15.00 gram/head, respectively. There was no<br />

significant difference (p>0.05) in mineral<br />

intake among the sheep fed with soils from Arabi,<br />

Jair and Hermokale areas. The lowest mineral<br />

intake was recorded for sheep fed with Bole soil<br />

(11.86 g/day) from Zeway area. Bole soil had<br />

lower Cu (0.28 ppm), Mn (0.80 ppm) and Zn (0.50<br />

ppm) than the suggested critical values set by<br />

Mtimuni (1982) and McDowell (1983). When<br />

compared to all other mineral soils the level of K<br />

in Bole soil was higher. However, it had lower<br />

concentration of Na, Ca and Mg. The imbalance<br />

<strong>Kasetsart</strong> J. (Nat. Sci.) 41(2) 293<br />

of minerals of Bole soil may attribute to the lower<br />

mineral intake by the animals. Khalili, (1993)<br />

reported that sodium deficiency which was<br />

evident in central parts of Ethiopia usually<br />

causes increased soil ingestion among grazing<br />

livestock.<br />

The mean daily weight gains and total<br />

weight gain of sheep fed complete mineral mixture<br />

were significantly higher (p

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