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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Natural Mineral Soils on Body Weight and Liver Minerals of Black Head Somali Sheep in Ethiopia) ผู้เขียน: Sisay Tilahun,  ดร.ประวีร์ วิชชุลตา, รองศาสตราจารย์ , ดร.พรศรี ชัยรัตนายุทธ์, รองศาสตราจารย์ , สุวพงษ์ สวัสดิ์พาณิชย์ สื่อสิ่งพิมพ์:pdf AbstractThe effects of different mineral soils on body weight and liver mineral concentration were investigated using 48 Black Head Somali Sheep in Jijiga Somali region, Ethiopia. The soil samples collected from 4 different sites were compared with a complete mineral mix and a control non supplement treatment. Chemical composition of the soils indicated that they all are alkaline. Arabi, Jair and Hermokale soils from different localities had adequate amount of Ca, K and Mg whereas Mn, Fe and Zn were below the recommended standard by 76 to 95%, 87 to 97% and 68 to 88%, respectively. The mean daily mineral intakes of sheep supplemented with Jair, Hermokale, Arabi and Bole soil were 18.14, 16.51, 16.02 and 11.86 grams/sheep/day, respectively. No significant differences were observed in mineral intake among Jair, Arabi and Hermokale groups. When compared to other treatment the daily weight gain (mean 74.79 g), and total weight gain (mean 8.98 kg) were recorded highest (p<0.05) for sheep fed on complete mineral mixture. Based on liver analysis sheep in the study area did not suffer from Mn, Cu and Zn deficiencies. However, concentration of sheep fed on complete mineral mixture was significantly higher (p < 0.05) in Ca and Fe concentration when compared to those from the non supplemental animals. With the exception of Mg, there was no significant difference (p>0.05) in liver minerals of sheep provided with different mineral soils. Liver Mg in sheep from Bole treatment group was significantly different when compared to those receiving Jair, Hermokale and Arabi soils. In addition, when compared to animals fed on different minerals soils, mineral concentration in the liver of sheep fed Bole soil was lower (p>0.05) in Mn (5.49 ppm) and Zn (92 ppm) than those from the other groups. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Assessment of Small Ruminant Management Practices in Jijiga and Shinile Zones of Somali Regional State, Ethiopia) ผู้เขียน:Sisay Tilahun, ดร.ประวีร์ วิชชุลตา, รองศาสตราจารย์, ดร.พรศรี ชัยรัตนายุทธ์, รองศาสตราจารย์, สุวพงษ์ สวัสดิ์พาณิชย์ สื่อสิ่งพิมพ์:pdf AbstractA survey was conducted to assess sheep and goat management practices in Jijiga and Shinile zones of Somali Region, eastern Ethiopia from November to December 2004. Information on sheep and goat ownership patterns, production objectives, and management and production constraints were collected from 360 households using semi structured questionnaires. The mean number of sheep and goats per household were 8.76?0.5 and 7.94?0.5 in Jijiga zone and 11.12?1.0 and 10.08?0.8 in Shinile zone. About 56% of the respondents kept sheep and goats for both local and oversea markets, whereas 43.1% of them reared their sheep only for local market alone. About 58% of the pastoralists bred their animals during wet season. Home-grown forage production was not a common practice in the areas and the pastoralists totally depended on natural pasture as source of feed for ruminants. About 63% of the interviewed pastoralists used natural mineral soil while 31% used both Carro and common salt. With regard to housing, about 85% of the respondents housed sheep in the open kraal at night. Shortage of feed and water, especially during drought period was found to be the major constraint to sheep and goat production due to which the highest death was reported. |
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