Abstract
An experiment was conducted to determine preference intake and relative palatability indices of Acacia karroo, Acacia nilotica, Acacia tortilis, Acacia sieberiana and Acacia rhemniana in sheep and goats using a completely randomized design. The size of Experimental Farm from which the browses were harvested was 1842.75 ha. The leaf samples were randomly collected from various young trees. The samples were analysed for proximate composition, measured for intake and relative palatability indices of sheep and goats. Dry matter (DM) content ranged from 917.4 to 936.8 g/kg DM and organic matter from 822.9 to 892.2 g/kg DM. All acacia species contained crude protein content (CP) of more than 7–17% required for grazing animals. The content of neutral detergent fibre (ADF) and acid detergent fibre ranged from 372.8 to 658.1 and 150.0 to 464.6 g/kg DM, respectively and were significantly (P < 0.05) different among the species. All of the acacia species had low levels (0–5.57 g/kg DM) of condensed tannins. The intakes of all feeds except A. karroo and A. rhemniana were high in both sheep and goats. The leaves from A. sieberiana had the highest palatability indice (Pi) while those of A. rhemniana had the lowest Pi in both sheep and goats. It was concluded that there was an effect of acacia species on intake and relative palatability indices. Species A. sieberiana, A. nilotica and A. tortilis have potential as livestock fodder, based on moderate to high CP value, low ADF, low tannins, high intake and relative palatability indices.
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References
Aganga AA, Tshwenyane SO (2003) Feeding values and anti-nutritive factors of forage tree legumes. Pakistan J Nutr 2(3):170–177
AOAC (1990) Official methods of analysis, 15th edn. Association of official analytical Chemists, Washington, DC, USA
Barry TN (1985) The role of condensed tannins in the nutritional value of Lotus pedunculatus for sheep 3. Rates of body and wool growth. Brit J Nutr 54:211
Barry TN, McNabb WC (1999) The implications of condensed tannins on the nutritive value of temperate forages fed to ruminants. Brit J Nutr 81:263–272
Becker K, Lohnmann J (1992) Feed selection by goats on tropical semi-humid rangeland. Small Rumin Res 8:285–298
Ben Salem H, Nefzaoui A, Abdouli H (1994) Palatability of shrubs and fodder trees measured on sheep and dromedaries: methodological approach. Anim Feed Sci Technol 46:143–153
Fall ST (1993) Valeur nutritive des fourrages ligneux. Leur role dans la complementation des fourrages pauvres des milieux tropicaux. PhD Thesis, University of Science and Technology, ENSA, Montpellier, p 143
Hassan LG, Umar KJ, Yuguda H (2007) Nutritional evaluation of Faidherbia albida seeds and pulp as source of feeds of livestock. Africa J Food Agric Nutr Dev 7(5):1–11
Kaitho RJ, Umunna NN, Nsahlai IV, Tamminga S, Van Bruchem T, Hanson J, Van der Wouw M (1996) Palatability of multipurpose tree species: effect of species and length of study on intake and relative palatability by sheep. Agrofor Syst 13:249–261
Kaitho RJ, Umunna NN, Nsahlai IV, Tamminga S, Van Bruchem T, Hanson I (1997) Palatability of wilted and dried multipurpose tree species fed to sheep and goats. Anim Feed Sci Technol 65:151–165
Le Houerou HN (1980) Browse in Africa. In: Proceedings of the international symposium international livestock centre for Africa (ILCA), Addis Ababa, Ethiopia, p 491
Marten GC (1978) The animal—plant complex in forage palatability phenomena. J Anim Sci 465:1470–1477
Ngwa AT, Nsahlai IV, Bonsi MLK (2003) Feed intake and dietary preferences of sheep and goats offered hay and legume-tree pods in South Africa. Agrofor Syst 57(1):29–37
Norton BW (1998) The nutritive value of tree legumes. In: Gutteridge RC, Shelton HM (eds) Forage Tree legumes in tropical agriculture. The Tropical Grassland Society of Australia Inc, Brisbane, pp 202–215
Personius TL, Warnbolt CL, Stephens JR, Kelsey RC (1987) Crude terpenoid influence on mule deer preference for sagebrush. J Range Manag 40:84–88
Porter LJ, Hristich LN, Chan BG (1986) The conversion of procyanidins and prodelphinidins to cyanidins and delphinidin. Phytochemistry 25:223–230
Provenza FD (1995) Postingestive feedback as an elementary determination of food selection and intake in ruminants. J Range Manag 48:2–17
Rittner U, Reed JD (1992) Phenolics and in vitro degradability of protein and fibre in West African browse. J Sci Food Agric 58:21
SAS Institute (1998) SAS, user’s guide: statistics. SAS Institute, Inc, Cary, MC
Terill TH, Rowan AM, Douglas GB, Barry TN (1992) Determination of extractable and bound condensed tannin concentration in forage plants, protein concentrate meals and cereal grains. J Sci Food Agric 58:321
Van Soest PJ, Robertson JB, Lewis BA (1991) Methods for dietary fiber, neutral detergent fiber and non-starch polysaccharide (NSP) in relation to animal nutrition. J Dairy Sci 74:3583–3597
Woodward A, Reed JD (1997) Nitrogen metabolism of sheep and goats consuming Acacia brevispica and Sesbania sesban. J Anim Sci 75:1130–1139
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Mokoboki, H.K., Ndlovu, L.R. & Malatje, M.M. Intake and relative palatability indices of acacia species fed to sheep and goats. Agroforest Syst 81, 31–35 (2011). https://doi.org/10.1007/s10457-010-9352-5
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DOI: https://doi.org/10.1007/s10457-010-9352-5