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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Effect of Dry Season Supplementation of Lotus corniculatus Hay on Body and Fleece Weights of Three Sheep Breeds Grazing Natural Pasture under Ethiopian Conditions) ผู้เขียน: Aschalew Tsegahun,  ดร.พรศรี ชัยรัตนายุทธ์, รองศาสตราจารย์ , ดร.ประวีร์ วิชชุลตา, รองศาสตราจารย์ , Sayan Tadsri สื่อสิ่งพิมพ์:pdf AbstractA study was conducted to investigate four levels of Lotus corniculatus hay (0, 100, 200 and 400 g/d/h) on body weight change and fiber characteristic of three dual-purpose sheep breeds of Ethiopia. The sheep were grouped based on their body weight and respective breeds and was assigned to one of the four levels of lotus hay randomly. Growth rate was significantly different (p<0.05) among the feeding levels. Rate of gain for lambs supplemented with 200 gram (5.12 kg) and 400 g lotus hay/day (5.55 kg) were similar and did not differ significantly (p>0.05), but were found to be different than the levels of 100 g lotus hay/day (3.49 kg) and the zero level (1.65 kg). Within breeds, body weight changes were observed AxM breeds gained significantly higher (p<0.05) (5.44 kg) than Menz (4.13 kg) and Tukur (2.31 kg). The live gain between Menz (4.13 kg) and Tukur (2.31 kg) was also significantly different (p<0.05). With regard to fiber characteristics, AxM lambs showed their superiority in all fiber characteristics (p<0.05) than Menz and Tukur sheep while no difference was noted between Menz and Tukur sheep in greasy and clean fiber weights. Any of the lotus levels did not alter any of the fiber characteristics. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Macro Mineral Status of Feds in the Central and Western Parts of Ethiopia) ผู้เขียน:Aschalew Tsegahun, ดร.พรศรี ชัยรัตนายุทธ์, รองศาสตราจารย์, ดร.ประวีร์ วิชชุลตา, รองศาสตราจารย์, ดร.สายัณห์ ทัดศรี, ศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractDifferent feed types collected from three altitudinal ranges in the central and western parts of Ethiopia in two different seasons were evaluated for their macro mineral concentrations. Feeds in the selected parts of the country comprised of natural pasture, hay, straws of cereals and food legumes and to a lesser extent cultivated forage crops and agro-industrial by-products. All feed samples were taken directly from the field or supplied by the farmers. The feed samples were analyzed for the macro minerals namely Ca, P, Mg, Na and K. Mineral concentrations were assessed in relation to recommended dietary requirements of sheep. The results indicated a wide variation in macro minerals along with seasons, altitudes, and feed types. Regardless of seasons and altitudes, all feed types were deficient in Na. Natural pasture, cereal straws, cultivated forages and legume straws were found to be deficient in P. Among the macro minerals P, Mg and Na were found to be the most lacking. In situations where forages are fed exclusively, supplementary P, Mg and Na would be required. The insufficiency of Na is the most widespread mineral deficiency in the studied parts of the country. The levels of Ca and K were found to be sufficiently high to meet estimated nutritional requirements of sheep. |
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