- Acero, A., Muir, J.P. and Wolfe, R.M. (2010). Nutritional composition and condensed tannin concentration changes as browse leaves become litter. J. Science Food Agr., 90: 2582-2595.
- AOAC (2012). Official Methods of Analysis. Association of Official Analytical Chemists, (Gaithersburg, Maryland, USA).
- Barlow, C. (2000). The Ghosts of Evolution: Nonsensical fruit, missing partners and other ecological anachronisms. Basic Books: N.Y., USA.
- Brown, D., Ng’ambi, J.W. and Norris, D. (2016). Voluntary intake and palatability indices of pedi goats fed different levels of Acacia karroo leaf meal by cafeteria method. Ind. J. Anim. Res., 50: 41-47.
- Datt, Ch., Datta, M. and Singh, N.P. (2008). Assessment of fodder quality of leaves of multipurpose trees in subtropical humid climate of India. J. For. Res., 19: 209-214.
- Domínguez-Gómez, T.G., Ramírez Lozano, R.G., Estrada Castillón, A.E., Scott Morales, L.M., González Rodríguez, H. and Alvarado, M. Del S. (2012). Importancia nutrimental en plantas forrajeras del matorral espinoso tamaulipeco. CIENCIA UANL, 15: 77-93.
- Guerrero, M., Cerrillo, S.M.A., Ramírez, R.G., Salem, A.Z.M., González, H. and Juárez, R.A.S. (2012). Influence of polyethylene glycol on in vitro gas production profiles and microbial protein synthesis of some shrub species. Anim. Feed Sci. Tech., 176: 32-39.
- González-Rodríguez, H., Domínguez-Gómez, T.G., Cantú-Silva, I., Gómez-Meza, M.V., Ramírez-Lozano, R.G., Pando-Moreno, M. and Fernández, C.J. (2011). Litterfall deposition and leaf litter nutrient return in different locations at Northeastern Mexico. Plant Ecol., 212: 1747-1757.
- Hughes, J.B., Sousa, J.S., Barreto, R.A., Silva, A.R., Souza, C.S., Silva, V.D.A., Silva, B.M.P., Freitas, S.R.V.B., Costa, M.F.D., El- Bacha, R.S., Batatinha, M.J.M., Tardy, M., Velozo, E.S. and Costa, S.L. (2005). Cytotoxic effects of an extract containing alkaloids obtained from Prosopis juliflora Sw. D.C. (Algaroba) pods on glioblastoma cells. Rev. Bras. Sau. de Prod. Ann., 6: 31-41.
- Kushwaha, R., Rai, S.N., Singh, A.K., Chandra, G., Vaidya, M.M., Sharma, V.K., Pathan, M.M. and Kumar, S. (2011). Tanniniferous feed resources in dairy animals: A review. Agri. Reviews, 32: 267-275.
- Madzonga, Z. and Mogotsi, K. (2014). Production, harvest and conservation of Lablab purpureus (L) sweet forage in semi arid livestock regions: The case of east central Botswana. J. Anim. Plant Sci., 24: 1085-1090.
- Makkar, H.P.S. (2003). Quantification of tannins in tree and shrub foliage. A Laboratory Manual. Kluwer Academic Publishers. Alphen and den Rijn. The Netherlands, pp. 59-60.
- Mogotsi, K., Nyangito, M.M. and Nyariki, D.M. (2011). The perfect drought? Constraints limiting Kalahari agro-pastoral communities from coping and adapting. Afr. J. Environ. Sci. Technol., 5: 168-177.
- Nakano, H., Nakajima, E., Hiradate, S., Fujii, Y., Yamada, K., Shigemori, H. and Hasegawa, K. (2004). Structure-activity relationships of alkaloids from mesquite (Prosopis juliflora (Sw.) DC.). Plant Growth Regul., 44: 207-210.
- Oppong, S.K., Kemp, P.D. and Douglas, G.B. (2008). Browse shrubs and trees as fodder for ruminants: A review on management and quality. J. Sci. Technol., 28: 65-75.
- Pasiecznik, M.N. (2001). The Prosopis juliflora-Prosopis pallida Complex: A Monograph, HIDRA Coventry UK. p.120.
- Patra, A.K. (2009). Meta-analysis on effects of supplementing low-quality roughages with foliages from browses and tree fodders on intake and growth in sheep. Livest. Sci., 121: 239-249.
- Patra, A.K. (2010). Effects of supplementing low-quality roughages with tree foliages on digestibility, nitrogen utilization and rumen characteristics in sheep: a meta-analysis. J. Anim. Physiol. Anim. Nut., 94: 338-353.
- Rafique, S., Wallace, J.D., Holechek, J.L., Galyan, M.L. and Arthun, D.P. (1992). Effects of forb and shrub diets on ruminant nitrogen balance. I. Sheep Studies. Small Rumi. Res., 45: 113-122.
- Ramirez-Lozano, R.G. and Garcia-Castillo, C.G. (1996). Nutrient profile and in situ digestion of forage from Leucaena leucocephala and Acacia berlandieri. Forest, Farm, and Community Tree Network, 1: 27-31.
- Ramirez, R.G. (1996). Feed value of browse. VI International Conference on Goats. Vol. 2. International Academic Publishers. pp. 510-528. Beijing, China.
- Ramirez, R.G. (1999). Feed resources and feeding techniques of small ruminants under extensive management conditions. Small Rumin. Res., 34: 215-230.
- Reed, J.D. and Woodward, A. (1990). Fodder tree and straw diets for sheep intake, growth, digestibility and the effects of phenolics on nitrogen utilization. Anim. Feed Sci. Technol., 30: 39-50.
- SAS (2000). SAS/STAT® User’s Guide (8.1Edition). SAS Inst. Inc., Cary, NC, USA.
- Shelton, H.M. (2004). Importance of tree resources for dry season feeding and the impact on productivity of livestock farms. In: ‘t Mannetje L, Ramirez L, Ibrahim M, Sandoval C, Ojeda N, Ku J (eds). The importance of silvopastoral systems in rural livelihoods to provide ecosystem services. Proceedings of 2nd International Symposium on Silvopastoral Systems, Universidad Autónoma de Yucatán, Mérida, Yucatán, México.
- Van, D.T.T. (2006). Some animal and feed factors affecting feed intake, behavior and performance of small ruminants. Doctoral thesis, Swedish University of Agricultural Sciences, Uppsala.
- Van Soest, P.J., Robertson, J.B. and Lewis, B.A. (1991). Methods for dietary, neutral detergent fiber, and nonstartch polysaccharides in relation to animal nutrition. Symposium: carbohydrate methodology, metabolism, and nutritional implications in dairy cattle. J. Dairy Sci., 74: 3583-3597.