Browsing by Author "Jayasinghe, J.M.P"

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    Identification of Factors Affecting Milk Production of Dairy Cattle at Galenbindunuwewa Veterinary Region in Anuradhapura District
    (Uva Wellassa University of Sri Lanka, 2018) Ilangasingha, N.L.K; Jayasinghe, J.M.P; Jayawardana, J.M.D.R; .Wedasingha, W.A.N
    Dairy cattle farming is a key sector in livestock subsector which plays a crucial role as a source of income and a source of nutrients to the Sri Lankan community .This study was carried out to investigate the present status of milk production and to identify the main factors affecting daily milk production at Galenbindunuwewa veterinary region in Anuradhapura District. Total of 300 dairy farmers were selected using Stratified and Simple Random sampling techniques. Milk production and socio-economic data were collected using a pre-tested structured questionnaire covering 41 Gramaniladari divisions in this region. Data were analyzed for descriptive analysis followed by Regression Analysis model using Minitab 17 statistical software. Results of the study revealed that the dairy cattle farming is operated as the major income source of this area (69.4%). With average wean age of 3.14 months, Jersey Sahiwal cross breed was the major breed (28.5%) accounts for 14.8 Liherd average daily milk production. The best fitted multiple linear regression model predicted that of the value of 74.66% daily milk production suggesting that thenumber of milking cows in the herd, type of breeds, supply forage type, amount of night feeding supply, amount of mineral supplement, roughages feeding methods, concentrate feeding frequency per day, amount of concentrate supply, concentrate type, feed and water availability in cattle shed significantly (P < 0.05) affect the daily milk production. However, lack of housing facilities, poor quality feeds and water, less success in artificial insemination (AI) were reported as key constraints which need to be properly focused in future to increase milk production in Galenbindunuwewa veterinary region in Anuradhapura District.
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    Use of Lried Caged Layer Litter for Replacing Molasses in Total Mixed Rations (TMR) for Dairy Cattle
    (Uva Wellassa University of Sri Lanka, 2018) Kalhara, A.G.M.; Jayasinghe, J.M.P; De Silva, S.
    This study was carried out to investigate the use of dried caged layer litter in replacing the expensive molasses in total mixed ration (TMR) for dairy cattle. Litters samples from layers at different age groups (14, 17, 33, 37, 59, 72 weeks) were selected and were analyzed for proximate composition. Litter from 14 weeks old layers showed the best proximate composition (dry matter 79.56%, crude fiber 30.86%, and crude protein 0.709%). Selected dried caged layer litter samples were tested for Salmonella and E coli using XLD and EMB selective media, respectively and results were negative for both. Further selected litter was heat treated (105 °C till 2 hrs.) and control (Pennisetwn purpureum 40 kg, Molasses 2 kg, concentrate 3 kg, mineral supplement 50 g), treatment one (control + 1 kg of both litter and molasses) and treatment two (control + 2 kg of litter) were prepared. Nine Jersey cross milking cows in second lactation (BW 437 ± 19.4 kg) were randomly assigned to three groups and formulated TMR was fed (45 kg cow' day-I). During experiment period, adlibitum supply of water was given and no medication was practiced. After one week of acclimatization period, daily milk production and feed intake were measured individually up to two weeks duration and results revealed that no significant difference in average daily milk production and the feed intake (p value > 0.05). Results suggested that the dried caged layer litter could be successfully incorporated to the dairy cattle diet replacing molasses however further• studies are required regarding improving aroma and subsequently the palatability of the dried caged layer litter which might affect to significantly higher daily milk production.