Studying the effect of sampling time and type of area on chemical composition and digestibility of haloxylon
2003
Sharifi Hosseini, M. M., Member of Scientific Board of Shahid Bahonar University , Kerman | Takasi, M.V., Expert for Natural Resources Research Center, Kerman province | Frough Ameri, N., Expert for Natural Resources Research Center , Kerman province
This research was carried out to determine the effect of sampling time and type of area on the chemical composition and digestibility of Halaloxylon. The samples were taken in May, June, July and October from Kerman';s ranges (Joopar road), Zarand and Rafsanjan(Noogh road). On the basis of Domarten climatic system, Kerman';s climate is arid and that of Rafsaunjan and Zarand are semi-arid. The measured chemical compositions were NDF,ADF,ash,Ca, P,Mg, K,Fe, Mn,Cu and Zn. The dry matter digestibility was determined by two stages in-vitro technique with rumen liquor and pepsin. The mean value of NDF, ADF , Cp, ash, Ca, p, Mg and k were 38.12%, 21.2%, 10.63, 28.73%, 1.7%, 0.17%, 1.6% and 1.3% in all samples respectively. The means of Fe, Mn, Cu, and Zn concentration were 182.19, 218.47, 7.44 and 26.45 p.p.m respectively. The dry matter digestibility coefficient for all the smaples was 0.59. The Sampling time effect on NDF was significant (p0.001), but it was no affected by area. Crude protein was affected significantly by both sampling date (p0.001) and area (p0.001).Sampling date and area had no significant effect considering ADF, ash, Ca, p and Mg While K (p0.01) was affected only by sampling date. Coefficient of digestibility (p0.01) and Zn concentration (p0.05) also were significantly affected by sampling date. The reduction in crude protein content found in this research was in agree with other researches conducted on the other rang plants while this reduction in NDF and ADF was apposite the other foundings and it could be due to seed formation Keywords: Haloxylon, Digestibility , Sampling , Kerman
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