Greener Journal of Agricultural Sciences Vol. 4 (8), pp. 362-367, September 2014.
Manuscript Number: 062414277
Influence of Coat Pigmentation on Feed and Water Consumption of West African Dwarf Sheep Raised in Humid Tropics
Adelodun Opeyemi Fadare
Department of Environmental Biology and Fisheries, Adekunle Ajasin University, Akungba-Akoko, Ondo-State, Nigeria.
Email: delodunfadare @gmail .com/ adelodunopeyemi @yahoo .com, Phone: +2348034782356
This experiment was carried out to determine the effect of coat pigmentation on feed and water intake of West Africa Dwarf Sheep using 24 weaned lambs with different coat pigmentations. Feed intake of Panicum maximum and concentrate feed, water consumption, weight gain as well as feed efficiency were measured. The analysis of variance showed that the effect of coat pigmentation was significant (p< 0.05) on forage intake, weight gain, feed efficiency and water consumption. However, concentrate feed intake was not significantly (p>0.05) affected by coat pigmentation. The least value of weight gain was recorded for black sheep with the weekly gain of 0.49 ± 0.19kg. There was no significant difference in the weekly weight gain of brown sheep and white sheep with 0.69 ±0.12kg and 0.60 ± 0.15kg respectively. Brown coat pigmentation type had the highest feed efficiency of 0.25± 0.05 followed by white sheep (0.21 ±0.03) while the black sheep had the least feed efficiency (0.18 ± 0.02). The mean daily water consumption of the WAD sheep ranged from 0.96 ± 0.02 litre to 1.50 ±0.02 litre with the brown sheep having the highest water consumption while black sheep had the least. Female sheep had lower feed efficiency and water consumption than male sheep. In conclusion, animals with light pigmentation had higher values for feed intake, daily water consumption and feed efficiency than the dark (black) pigmentation.
Keywords: Coat pigmentation, feed intake, water consumption, sheep.
Adalsteinsson, S, Sponemberg, DP Alexieva, S and Russel, AJF, (1994). Inheritance of coat pigmentations. J. Heredity. 85: 267 – 272
Adedeji TA, Ozoje MO, Peters SO, Ojedapo LO, Sanusi AO, (2011). Effect of Coat Color and Wattle Genes on the Morphometric Characteristics and Scrotal Dimensions of Traditionally Reared West African Dwarf (WAD) Bucks. Inter. J. Agric., Environ. Biotech 4 (2): 157-162
Adegbola, TA and Obioha FC, (1984). Water intake and excretion of West African Dwarf Sheep in Southern Nigeria. J. Anim. Prod. Res. 4(1), 85-97
Fadare AO, Peters, SO, Yakubu, A, Sonibare, AO, Adeleke MA, Ozoje, MO and Immumorin, IG, (2012). Physiological and haematological indices suggest superior heat tolerance of white coloured West African Dwarf Sheep in hot humid tropics. Trop. Anim. Health Prod. 45 (1): 157-165
Gatenby RM, (2002). Sheep: The Tropical Agriculturist. Revised Edition. CTA Macmillan.
Habeeb AAM, Marai IFM and Kamal TH, (1992). Heat Stress. In Philips, C., Pigginns, D. (eds). Farm animals and the Environment, CAB Internationa, Wallingford, UK, pp 27-47
Harris B and VanHorn HH (2008). Water and its Importance to Animals. Animal science Department, Florida. CIR 1017-DS085 pp 17
Ilori BM, (2010). Adaptation of local, exotic and crossbred turkey to tropical environment. M.Agric. Dissertation submitted to the Department of Animal Breeding and Genetics. University of Agriculture Abeokuta pp 122
Jafari RA, Fazlara A and Gohari M, (2006). An investigation into Salmonella and faecal coliform contamination of drinking water in broiler farms in Iran. Int. J. Poultry Sc. 5(5):491-493
Jiao S, Maltecca C, Gray KA and Cassady JP, (2014). Feed intake, average daily gain, Feed efficiency and real- time ultrasound traits in Duroc pigs: Genetic parameter estimation and accuracy of genomic prediction. J. Anim. Sci 92(6) doi:102527/jas.2013-7338
Lundie RS, (2011). The genetics of pigmentation in fat-tailed sheep: a review. Trop. Anim. Health Prod. 43:1245–1265
Marai I, El-Darawany A, Fadiel A and Abdel –Hafez M, (2003). Physiological traits as affected by heat stress in sheep: A review, Small Rum. Res.71:1-12.
Mc Manus C, Louvandini H, Gugel R, Sasaki LCB, Bianchini E, Bernal FEM, Paiva SR and Paim TP, (2011). Skin and coat traits in Sheep in Brazil and their relation with heat tolerance. Trop. Anim. Health Prod. 43: 121-126
Schoeman SJ and Visser JA, (1995). Water intake and consumption in sheep differing in growth potential and adaptability S. Africa J. Anim. Sci., 25(2): 75-79
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