Solomon, G., Van Arendonk Johan, A.M., Komen, H., Windig, J.J. and Hanotte, O. (2007) Population Structure, Genetic Variation and Morphological Diversity in Indigenous Sheep of Ethiopia. Animal Genetics, 38, 621-628.
 FAO (2013)Food and Agriculture Organization. World Statistical Compendium for Raw Hides And Skins, Leather and Leather Footwear 1993-2012. Trade and Markets Division Food and Agriculture Organization of the United Nations.
 Tibbo, M. (2006) Productivity and Health of Indigenous Sheep Breeds and Crossbreds in the Central Ethiopian Highlands. PhD Dissertation, Swedish University of Agricultural Sciences, Uppsala, Sweden.
 Aschalew, T. (2006) Assessment of Feeding Systems and Evaluation of Feed Supplementation on Body Weight and Fleece Production of Sheep in Ethiopia. PhD Dissertation, Kasetsart University, Thailand.
 Fentie, B. and Solomon, M. (2008) Effects of Supplementation of Farta Sheep Fed Hay with Sole or Mixtures of Noug Seed Meal and Wheat Bran on Feed Intake, Digestibility and Body Weight Change. Tropical Animal Health and Production, 40, 597-606.
 Likawent, Y., Claudia, K., Firew, T. and Kurt, J.P. (2012) Sweet Blue Lupin (Lupinus angustifolius L.) Seed as a Substitute for Concentrate Mix Supplement in the Diets of Yearling Washera Rams Fed on Natural Pasture Hay as Basal Diet in Ethiopia. Tropical Animal Health and Production, 44, 1255-1261.
 Birhanu, T., Getachew, A. and Mengistu, U. (2013) Effect of Green Prosopis juliflora Abissynica Cake Supplementation on Digestibility and Performance of Blackhead Ogaden Sheep Fed Hay as a Basal Diet. Science, Technology and Arts Research Journal, 2, 38-47.
 Oddy, V.H. and Sainz, R.D. (2002) Nutrition for Sheep-Meat Production. In: Freer, M. and Dove, H., CSIRO Plant Industry Canberra Australia, Eds., Sheep Nutrition, CABI Publishing, CAB international, Oxon, UK, 237-263.
 Boujenane, I. (2015) Growth at Fattening and Carcass Characteristics of D’man, Sardi and Meat-Sire Crossbred Lambs Slaughtered at Two Stages of Maturity. Tropical Animal Health and Production, 47, 1363-1371.
 Santos-Silva, J., Mendes, I.A. and Bessa, R.J.B. (2002) The Effect of Genotype, Feeding System and Slaughter Weight on the Quality of Light Lambs. 1. Growth, Carcass Composition and Meat Quality. Livestock Production Science, 76, 17-25.
 Fozooni, R. and Zamiri, M.J. (2007) Relationships between Chemical Composition of Meat from Carcass Cuts and the Whole Carcass in Iranian Fat Tailed Sheep as Affected by Breed and Feeding Level. Iranian Journal of Veterinary Research, 8.
 Mishra, B.B., Gebrekidan, H., Kibret, K., Assen, M. and Eshetu, B. (2004) Soil and Land Resource Inventory at Alemaya University Research Farm with Reference to Land Evaluation for Sustainable Agricultural Management and Production. Synthesis of Working Papers, Soil Science Bulletin No. 1. Alemaya University, Ethiopia.
 Kasahun, A. and Solomon, A. (2008) Breeds of Sheep and Goats. In: Yami, A. and Merkel, R.C., Eds., Sheep and Goat Production Handbook of Ethiopia. ESGPIP (Ethiopian Sheep and Goat Productivity Improvement Program), Branna Printing Enterprise, Addis Ababa, Ethiopia, 5-26.
 Gizaw, S., Komen, H., Windig, J.J., Hanotte, O. and van Arendonk, J.A.M. (2008) Conservation Priorities for Ethiopian Sheep Breeds Combining Threat Status, Breed Merits and Contributions to Genetic Diversity. Genetics Selection Evolution, 40, 433-447.
 ESGPIP (2011) Ethiopia Sheep and Goat Productivity Improvement Program. Export Requirements for Meat and Live Small Ruminants: How Can Development Agents Assist Producers to Improve Small Ruminant Export? Technical Bulletin No. 47.
 Council for International Organizations of Medical Sciences and the International Council for Laboratory Animal Science (2012) International Guiding Principles for Biomedical Research Involving Animals.
 Dhakad, A., Garg, A.K., Singh, P. and Agrawal, D.K. (2002) Effect of Replacement of Maize Grain with Wheat Bran on the Performance of Growing Lambs. Small Ruminant Research, 43, 227-234.
 AFRC (1993) Agricultural Food and Research Council. Energy and Protein Requirements of Ruminants. An Advisory Manual Prepared by the Agricultural Food and Research Council Technical Committee on Responses to Nutrients. CAB International, Wallingford, UK.
 De Boer, H., Dumont, B.L., Fomeroy, R.W. and Weniger, J.H. (1974) Manual on E.A.A.P. Reference Methods for the Assessment of Carcass Characteristics in Cattle. Livestock Production Science, 1, 151-164.
 Dove, H. (2002) Principles of Supplementary Feeding in Sheep-Grazing Systems. In: Freer, M. and Dove, H., CSIRO Plant Industry Canberra Australia, Eds., Sheep Nutrition, CABI Publishing, CAB International, Oxon, UK, 119-142.
 ARC (1980) Agricultural Research Council. The Nutrient Requirements of Ruminant Livestock. Technical Review by an Agricultural Research Council Working Party, Common wealth Agricultural Bureau, Farnham Royal, UK.
 Dereje, T., Mengistu, U., Getachew, A. and Yoseph, M. (2016) Growth and Carcass Characteristics of Three Ethiopian Indigenous Goats Fed Concentrate at Different Supplementation Levels. SpringerPlus, 5, 414.
 Tsegay, T., Yoseph, M. and Mengistu, U. (2013) Comparative Evaluation of Growth and Carcass Traits of Indigenous and Crossbred (Dorper × Indigenous) Ethiopian Sheep. Small Ruminant Research, 114, 247-252.
 Pulina, G., Avondo, M., Molle, G., Francesconi, A.H.D., Atzori, A.S. and Cannas, A. (2013) Models for Estimating Feed Intake in Small Ruminants. Revista Brasileira de Zootecnia, 42, 675-690.
 Hailu, A., Melaku, S., Tamir, B. and Tassew, A. (2011) Body Weight and Carcass Characteristics of Washera Sheep Fed Urea Treated Rice Straw Supplemented with Graded Levels of Concentrate Mix. Livestock Research for Rural Development, 23, Article No. 164.
 Firisa, W., Adugna, T. and Diriba, D. (2013) Feed Intake, Digestibility and Growth of Horrolambs Fed Natural Pasture Hay Supplemented with Graded Level of Vernonia amygdalina Leaves and Sorghum Grain Mixture. Science, Technology and Arts Research Journal, 2, 30-37.
 Wogenie, B. (2007) Effects of Increasing Levels of Energy and Protein Supplementation on Feed Intake, Body Weight Change and Carcass Composition of Blackhead Somali Sheep Fed on Grass Hay. MSc Thesis, Haramaya University, Ethiopia.
 Oke, U.K. and Ogbonnaya, E.O. (2011) Application of Physical Body Traits in the Assessment of Breed and Performance of WAD Sheep in a Humid Tropical Environment. Livestock Research for Rural Development, 23, Article No. 24.
 Vargas, S., Labri, A. and Sanchez, M. (2007) Analysis of Size and Conformation of Native Creole Goat Breeds and Crossbreds Used in Smallholder Agrosilvopastoral Systems in Puebla, Mexico. Tropical Animal Health and Production, 39, 276-286.
 Chineke, C.A., Ologun, A.G. and Ikeobi, C.O.N. (2006) Haematological Parameters in Rabbit Breeds and Crosses in Humid Tropics. Pakistan Journal of Biological Sciences, 9, 2102-2106.
 Njidda, A.A., Shuaibu, A.A. and Isidahomen, C.E. (2014) Haematological and Serum Biochemical Indices of Sheep in Semi-Arid Environment of Northern Nigeria. Global Journal of Science Frontier Research: Division Agriculture and Veterinary, 14, 48-56.
 Anwar, M.M., Nour El-Din, A.N.M. and Taha, T.A. (2012) Changes in Some Hematological and Serum Biochemical Parameters during the First Week after Lambing in Six Consecutive Parities in Some Egyptian Sheep Breeds. Egyptian Journal of Animal Production, 49, 293-302.
 Tibbo, M., Jibril, Y., Woldemeskel, M., Dawo, F., Aragaw, K. and Rege, J.E.O. (2004) Factors Affecting Hematological Profiles in three Ethiopian Indigenous Goat Breeds. International Journal of Applied Research Veterinary Medicine, 2, 297-309.
 Okah, U., Chibueze, C.O. and Anya, M.I. (2013) Haematological and Biochemical Characteristics of West African Dwarf Rams Fed Different Levels of Poultry Droppings/Maggots Combination. Journal of Agricultural Technology, 9, 1151-1156.
 Oliveira, P.B., Lima, P.M.T., Campeche, A., Mendonc, S., McManus, C., Louvandini, H. and Laviola, B.G. (2013) Growth and Carcass Characteristics of Santa Inês Lambs Fed Diet Supplemented with Physic Nut Meal Free of Phorbol Ester. Small Ruminant Research, 114, 20-25.
 Tope, A.F., Funmi, O., Adewumi, A. and Sunday, D.E. (2012) Performance, Hematology and Serum Biochemistry of West African Dwarf Goats Fed Ensiled Mixtures of Elephant Grass (Pennisetum purpureum) with Lima Bean, African Yam Bean and Pigeon Pea. Kasetsart Journal-Natural Science, 46, 694-702.
 Isaac, L.J., Abah, G., Akpan, B. and Ekaette, I.U. (2013) Haematological Properties of Different Breeds and Sexes of Rabbits. Proceeding of the 18th Annual Conference of Nigerian Society of Animal Science, 24-27.
 Jawasreh, K., Awawdeh, F., Bani Ismail, Z., Al-Rawashdeh, O. and Al-Majali, A. (2013) Normal Hematology and Selected Serum Biochemical Values in Different Genetic Lines of Awassi Ewes in Jordan. The Internet Journal of Veterinary Medicine, 7.
 Hoffman, P.C., Esser, N.M., Bauman, L.M., Denzine, S.L., Engstrom, M. and Chester-Jones, H. (2001) Short Communication: Effect of Dietary Protein on Growth and Nitrogen Balance of Holstein Heifers. Journal of Dairy Science, 84, 843-847.
 Shaker, Y.M., Ibrahim, N.H., Younis, F.E. and El-Shaer, H.M. (2014) Effect of Feeding Some Salt Tolerant Fodder Shrubs Mixture on Physiological Performance of Shami Goats in Southern Sinai, Egypt. Journal of American Science, 10.
 Catunda, A.G.V., Lima, I.C.S., Bandeira, G.C., Gadelha, C.R.F., Salmito-Vanderley, C.S.B., Araújo, A.A., Martins, G.A., Pereira, E.S. and Campos, A.C.N. (2013) Blood Leptin, Insulin and Glucose Concentrations in Hair Sheep Raised in a Tropical Climate. Small Ruminant Research, 114, 272-279.