- Volume 16 Issue 3
Supplementary feeding strategies were evaluated from pre-calving throughout lactation on 24 dual-purpose Mpwapwa breed cows in their second or greater lactation, weighing 246-455 kg. The Mpwapwa breed is an established breed of 4 Bos indicus breeds and 8% of Bos taurus. The cows were penned and stall-fed individually. Eight weeks before calving to eight weeks after calving, the cows were divided into two groups and offered hay ad libitum with either 2 kg DM (L) or 4 kg DM/day (H) concentrates. Nine weeks after calving half of the cows on L-level continued with 2 kg DM/day (L-L) while the remainder received 4 kg DM concentrate daily (L-H). Half of the cows on H-group continued with 4 kg DM/day (H-H) while the remainder received 2 kg DM/day (H-L). The concentrate mixture comprised of sunflower seed cake (33%) and maize bran (67%). The cows consumed all the concentrate offered. Hay DM intake was similar (6.8 kg/day) and tended to decrease the last two weeks before calving increased again after calving. Live weight change and body condition score were similar across treatments before calving but differed after calving (p<0.05). Heavier cows with higher condition score pre-calving had a higher body weight loss and regained weight later. After treatment reallocation, live weight change and condition differed between treatments (p<0.05). Calves were allowed to suckle milk from one quarter. The amount of milk suckled and calf weight gains were not significantly different between treatments. The cows were removed from the experiment when the milk yield was below 4 kg per day. Cows on treatment H produced 6.2 kg and on treatment L 5.0 kg saleable milk/day (p<0.05) during the first 8 weeks post partum. During the period 9-18 weeks post partum the saleable daily milk on H-H, L-H, H-L and L-L were 5.2, 4.8, 4.7 and 4.3 kg, respectively (p>0.05).
Dual-purpose Cows;Plane of Nutrition;Feeding Strategy;Milk Yield;Live Weight;Body Condition
- Clark, J. H. and C. L. Davis. 1980. Some aspects of feeding high producing cows. J. Dairy Sci. 63:873-885. https://doi.org/10.3168/jds.S0022-0302(80)83021-9
- Mchau, K. W. 1988. Production characteristics of Mpwapwa cattle I. lactation yield and length. World Anim. Rev. Cross-breeding, one means to genetic improvement, FAO, 11-17.
- Preston, R. T. and R. A. Leng. 1987. Matching ruminant production systems with available resources in tropics and subtropics. pp. 93-200. Penumb Books: Armidale, New South Wales, Australia.
- Snedecor, G. W. and W. G. Cochran. 1980. Statistical methods, Seventh Edition Iowa State University Press. Ames. 463.
- Macha, A. M. 1986. Animal breeding and genetics as a limiting factor to improved animal production in Tanzania. Proc. of the 13th scientific conferences of Tanzania Society of Animal Production 13:14-24.
- Syrstad, O. 1991. The role and mechanisms of genetic improvement in production systems constrained by nutritional and environmental factors .FAO, Anim. Prod. and Health paper No. 86:48-54.
- Ugarte, J. 1991. Restricted suckling in dual-purpose systems. FAO, Anim. Prod. Health paper No. 86:199-207.
- Kasonta, J. S. and J. I. Mkonyi. 1991.Mpwapwa breed a suitable milk and beef animals in semi-arid areas of Tanzania. In. Milk production from smallholder systems with emphasis on feeding strategies in semi-arid areas. Proc. of a seminar held at Sokoine University of Agriculture, Morogoro, Tanzania (Ed. A. P. Masaoa et al.).
- AOAC. 1985.Official methods of Analysis.12th ed. Association of Official Analytical Chemists, Washington, DC.
- Garnsworthy, P. C. and H. Topps. 1982.The effect of body condition of dairy cows at calving on the food intake and performance when given complete diets. Anim. Prod. 35:113-119. https://doi.org/10.1017/S0003356100000878
- Nutbal user's guide. 1993. Nutbal user's guide, version 1.0 August, 1993, 95-96.
- Allen, M. S. 2000. Effects of Diet on Short-Term Regulation of Feed Intake by Lactating Dairy Cattle. J. Dairy Sci. 83:1598-1624. https://doi.org/10.3168/jds.S0022-0302(00)75030-2
- Nicholson, M. J. and M. H. Butterworth. 1985.A guide to condition scoring of Zebu cattle. International livestock Centre for Africa (ILCA), Addis Ababa, Ethiopia.
- Garnworthy, P. C. and G. P. Jones. 1987. The influence of body condition at calving and dietary food intake and performance in dairy cows. Anim. Prod. 44:347-353. https://doi.org/10.1017/S0003356100012277
- MAFF. 1975. Energy allowances and feeding systems for ruminants.Technical Bulletin, Ministry of Agriculture, Fisheries and Food, No. 33:62-67.
- Bwire, J. M. N. and H. Wiktorsson. 1996. Pre-weaning nutritional management and dry season nutritional supplementation on intake, growth and onset of puberty of improved Zebu heifers. Livest. Prod. Sci. 46:229-238. https://doi.org/10.1016/S0301-6226(96)00034-6
- Goering, H. K. and P. J. Van Soest. 1970. Forage Fibre Analyses, Apparatus, Reagents, Procedures and Some Application. USDA Agricultural Handbook No. 379.
- Bertics, S. J., R. R. Grummer, C. Cadorniga-Valino and E. E. Stoddard. 1992. Effect of prepartum dry matter intake on Liver Tryglyceride concentration and early lactation. J. Dairy Sci. 75:1914-1922.
- Land, C. and J. D. Leaver. 1980. The effect of body condition at calving on the milk production and feed intake of dairy cows. Anim. Prod. 30:449.
- Mbwile, R. P. and P. Uden. 1991.Comparison of laboratory methods on precision and accuracy of predicting forage organic matter and digestibility. Anim. Feed Sci. Technol. 32:243-251. https://doi.org/10.1016/0377-8401(91)90029-R
- Leng, R. A. 1991. Factors affecting the utilisation of poor-quality forages by ruminants particularly under tropical conditions. Nutr. Res. Rev. 3:277-303. https://doi.org/10.1079/NRR19900016
- Mbwile, R. P. and P. Uden. 1997. Effect of feeding level on intake and digestibility of Rhodes grass (Chloris gayana, cv Kunth) by dairy cows. Anim. Feed Sci. Technol. 66:181-196. https://doi.org/10.1016/S0377-8401(96)01099-1
- Das, S. M., H. Wiktorsson and M. Forsberg. 1999. Effects of calf management and level of feed supplementation on milk yield and calf growth of Zebu and crossbreed cattle in the semi-arid tropics Acta Vet. Scand. 59:67-75.
- Shayo, C. M., B. Ogle and P. Udén. 1997. Comparison of water melon (Citrullus vulgaris)-seed meal, Acacia tortilis pods and sunflower-seed cake supplements in central Tanzania.2.Effect on intake and milk yield and composition of pwapwa cows. Trop. Grass. 31:13-134.
- Bines, J. A. 1979.Voluntary food intake. In: Feeding strategy for the high yielding dairy cows (Ed. W. H. Broster and H. Swan) Granada, London, pp. 23-41.
- Kiwuwa, G. H. and M. L. Kyomo. 1971. Milk composition and yield characteristics of Mpwapwa cattle. East African Agric. and Forestry J. Vol. XXXVI, No.3:290-295.
- Sanh, M. V., H. Wiktorsson and L. V. Ly. 2001. Effects of Natural Forage to Concentrate Ratios and Feeding Principles on Milk Production and Performance of Crossbred Lactating cows Asian-Aust. J. Anim. Sci. 15:650-657.
- McDonald, P., R. A. Edwards and J. F. D. Greenhalgh. 1988. Feeding standards for reproduction and lactation. In: Animal Nutrition. 4th ed. Longman Scientific and Technical, John Wiley and Sons, Inc., New York. pp. 346-347.
- Grummer, R. R. 1995. Impact of changes in organic nutrient metabolism on feeding the transition dairy cow. J. Anim. Sci. 73:2820-2833. https://doi.org/10.2527/1995.7392820x
- Ingvartsen, K. L. and J. B. Andersen. 2000. Integration of metabolism and Intake Regulation: A Review Focusing on Periparturient Animals. J. Dairy Sci. 83:1573-1597. https://doi.org/10.3168/jds.S0022-0302(00)75029-6
- MINITAB. 1998. Reference Manual Release 12.0 for windows (1998) MINITAB Inc, Staten Island, NY.
- Bwire, J. M. N. 1995. Influence of pre-weaning management system and dry season nutritional supplementation on the performance of Mpwapwa heifers. MSc. Thesis, Swedish University of Agricultural Sciences, Department of Animal Nutrition and Management.
- Land, C. and J. D. Leaver. 1981. The effect of body condition at calving on the production of Friesian cows and Heifers. Anim. Prod. 32:362-363.