Vol.10, No. 2, 2002

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    A Note on the Characteristics and Body Measurements of Goats in Elshukaba Area in the Gezira State, Sudan
    (Faculty of Agriculture, University of Khartoum, Shambat, Sudan, 2002) Elimam, M.E. ; Aydarous, A.
    A study was conducted on 556 heads of different age groups in 9 herds of sheep and goats in 5 villages in Elshukaba area near Wad Medani, Sudan. They were reared in a semi-intensive system. Goats were the main livestock species in the area, and 22.2% were mixed herds. Average herd size was 60 (40-100) for goats and 75 (70-80) for mixed herds. Males formed 2.2% of herds, and females distribution (%) was 28.9, 15.5, 21.9 and 31.5 not kidding, kidding once, kidding twice and kidding more than twice, respectively. The characteristics of Nubian goats were dominant in the area. Body weight and measurements were generally increased with age. Heart girth, body length and height at withers were used to predict body weight for different age groups. The correlation between measured and predicted body weights were high (0.82-0.95) in the first four age groups and weak (0.35-0.45) in the last two groups.
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    A Note on the Proximate Analysis of Different Parts of Acacia tortilis, A.nilotica and Capparis decidua in the Gezira (Sudan)
    (Faculty of Agriculture, University of Khartoum, Shambat, Sudan, 2002) Elimam, M.E. ; Awad, T.M
    Variations were detected in the proximate analysis of different parts of Acacia tortilis, A. nilotica and Capparis decidua in the Gezira (Sudan). Crude protein was relatively higher in all parts of C. decidua (9.33-12.25%) especially in flowers, followed by A. tortilis (9.9%), and in A.nilotica (2.25- 8.75%). The results demonstrated that these browses are good nitrogen sources especially in the dry season
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    Differential Growth and Development of Different Organs of Scavenger Local Ducks in the Sudan
    (University of Khartoum, 2002) El Beeli, M.Y.M. ; Musharaf, N.A. ; Abdalla, H.O. ; Bessei, W.
    A total of 35 drakes and 35 ducks hens of a local scavenger strain at 1, 4, 8, 12, 16, 20 and 24 weeks of age were used to study the differential growth and development of different organs. The birds were managed in a free- range system, slaughtered and weights and lengths of internal organs were determined. Live weight and internal organs were heavier in males than in females. The length of most parts of the digestive tract decreased after 20 weeks of age. The relative weight of the head, feet and shanks were maximum at the first week of age, and they were heavier in males than in females. The relative weight of the heart was 0.63% -1.2%, and weights of the spleen and liver were 0.02%-0.20% and 2.2%-6.0%, respectively. The relative weight of the caecum exceeded that of the large intestine. The relative lengths of the large intestine, caecum and pancreas were maximum at the first week of age, whereas that of the gizzard was maximum at the 4th week of age. A positive correlation was found between live weight and weights of intestines, gizzard and head. A linear equation was adopted to describe the growth and development of intestines, caecum, gizzard and pancreas in scavenger ducks, up to 24 weeks of age
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    Co-integration and Market Integration: An Application to the Sorghum Markets in the Sudan
    (Faculty of Agriculture, University of Khartoum, Shambat, Sudan, 2002) Idris, B. ; Osman, A.M.
    The study of marketing efficiency is a significant issue in most, if not all, developing countries. Research results that identify opportunities to improve the stability of supply of food products and related prices assist public and private decision-markers in developing countries. The econometric model applied in this paper to study market integration overcomes the shortcomings of the traditional brivariate correlation analysis. It gave a much broader range of results, and showed that almost all sorghum markets in the Sudan exhibited a long-term stable relationship, as indicated by the presence of co-integration. These results could be a useful tool for policies intended to enhance the efficiency of the marketing system. Time-series price data were collected from six sorghum wholesale markets in the Sudan and used to illustrate our arguments
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    Temporal Price Analysis: A Case Study of Sorghum Markets in the Sudan
    (Faculty of Agriculture, University of Khartoum, Shambat, Sudan, 2002) Idris, B. ; Osman, A.M.
    Seasonal price differences for sorghum in three Sudanese markets were investigated. A "classical model" for the decomposition of time series data was adopted to test the seasonal price differences as compared to storage costs. Monthly price changes for sorghum compared to interest rate on capital invested in buying and storing sorghum indicate an opportunity to capture above normal returns to storage. Causes of these large price differences are poor marketing infrastructure and inappropriate government policy pertaining to access to capital and timely and reliable market information to promote competition. We used price data collected from three sorghum wholesale markets to illustrate our arguments.