ABSTRACT Sixteen Afshari male lambs (mean live weight 35 ± 1.21 kg, 10 month of age) were used to study the effect of different levels of pistachio epicarp silage (0%, 8%, 17% and 25%) on wool characteristics. The fleece weight (FW), staple length on shoulder (STS), flank (STF), back (STB) and rump (STR), true wool fiber (TW), modulated fiber (MF), kemp fiber (KF) percentage, mean wool fiber diameter (MD) and its coefficient variation (CVMD), breaking load (BL), wool tenacity (WT) and extension (E) were measured. These data were analyzed by one-way ANOVA using SAS software package. The total mean of FW, STS, STB, STF STR; TW, MF, KF, MD, CVMD, BL, WT and E of wool were 1622.2 ± 0.2 gr, 6.20 ± 0.26 cm, 6.80 ± 0.20 cm, 6.50 ± 0.20 cm, 6.90 ± 0.20 cm, 63.30 ± 1.6 mu, 8.30 ± 1.6 mu, 28.40% ± 2.5%, 37.0 ± 0.9 mu, 47.02% ± 2.99%, 7.60 ± 0.3 kgf, 3.40 ± 0.2 gf/tex and 31.1% ± 1.7% respectively, although there was significant difference among treatments on FW, MF, KF, MD, BL and WT. The results showed that feeding lambs with 25% pistachio epicarp silage of total dry matter intake affected wool characteristics and its effect was similar with the control group.
Cite this paper
Salehi, M. , Mirzaei, F. and Mahdavi, A. (2012) Effects of different levels of feeding of pistachio epicarp silage on wool characteristics of growing Afshari lambs. Agricultural Sciences, 3, 351-354. doi: 10.4236/as.2012.33040.
 Mahdavi, A. (2008) Effects of physical and chemical treatments on quality of pistachio epicarp and lamb performance. Ph.D. Thesis, Tehran University, Tehran.
 Decandia, M. (2000) Responses to an ant tannic supplementation by browsing goats. 7th International Conference Goats, 1, 71-73.
 Labavitch, J.M., Heintz, C.M., Rae, H.L. and Kadar, A.A. (1982) Physiological and compositional changes associated with maturation of Kerman pistachio. Journal American Social Horticulture Science, 107, 688-692.
 Brooker, J.D., Klum, D., Miller, S., Skene, I. and Donovan, L.O. (1995) Rumen microorganism as providers of high quality protein. Livestock Research for Rural Development, 6, 1-4.
 Kumar, R. and Vaithiyanathan, S. (1990) Occurrence, nutritional significance and effect on animal productively of tannins in tree leaves. Animal Feed Science Technology, 30, 21-38. doi:10.1016/0377-8401(90)90049-E
 AOAC (2000) Official methods of analysis. 17th Edition, Association of Official Analytical Chemists, Gaithersburg.
 Van Soest, P.J. and Robertson, J.B. (1979) Systems of analyses for evaluation of fibrous feed. Proceeding of International Workshop on Standardization of Analytical Me-thodology for Feeds, International Development Research Center, Ottawa, 49-60.
 Julkunen-Titto, R. (1985) Phenolics constituents in the leaves of northern willos: Methods for the analysis of certain phenolics. Journal of Agriculture and Food Chemistry, 33, 213-217. doi:10.1021/jf00062a013
 Makkar, H.P.S., Borrowy, N.K. and Becker, K. (1992) Quantitation of polyphenols in animal feedstuffs. Proceeding of XVI International Conference of Group of Polyphenol, Lisbon, 13-17 July 1992.
 Orskov, E.R and McDonald I. (1979) The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science. Cambridge, 92, 499-503.
 Menke, K.H. and Steingass, H.(1988). Estimation of the energetic feed value obtained from chemical analysis and in vitro gas production using rumen fluid. Animal Research Development, 28, 7-55.
 Anonym (1982) Breaking strength of wool fibre bundles one IN. Gage length. American Society for Testing Materials (ASTM), Philadelphia, 2130-2610.
 Anonym (1982) Diameter of wool and other animal fibres by micro projection. American Society for Testing Materials (ASTM), Philadelphia, 295-302.
 Anonym (1982) Standard definition of terms relating to textiles. American Society for Testing Materials (ASTM), Philadelphia, 123-182.
 SAS/STAT (1987) User’s guide. 6.03 Editions, SAS Institute Inc.
 Salehi, M., Mahdavi, A. and Zahedifar M. (2008) Effect of different levels of dried pistachio epicarp on wool characteristics of growing Afshari lambs. Oman International Conference on Small Ruminants Production and Health in Arid and Semi-Arid Region, Oman, 26-28 January 2008.
 Seyed Moumen, S.M., Nik Khah, A., Zahedifar, M. and Salehi, M. (2004) Effect of different levels pistachio by product and its tannins on growth and cashmere production of Raeini goats. Journal of Pajouhesh-va-Sazandegi, 65, 92-101.
 Tilley, J.M.A. and Terry, R.A. (1963) Two stage technique for the in vitro digestion of forage crops. Journal of Breeding Grasslands Society, 18, 104-111.
 Memarizade, R. (2007) Effects of pistachio epicaep replacement in Holstein dairy cattle. M.Sc. Thesis, Azad Islamic University, Khorasegan