摘要：The present research work was undertaken to identify the quality milk production trend of Bangladesh Milk Production Co-operative Union Ltd. (Milk Vita) throughout the year. To achieve the objectives relevant data were collected during the period from January 1995 to December 1999 at different Milk Shed Area (MSA) of Milk Vita. Milk production trend of Baghabarighat and Takerhat MSA was differed significantly (p<0.01) among different months of each year during the experimental period and the average values of milk production of different years (1995-1999) were also differed significantly at 5 and 1% respectively. In Sree-Nagor, Manikgonj, Rangpur and Tangail MSA, milk production of each year differs significantly (p<0.01) and the average milk production values of different years did not differed significantly among different months of each year. From the mean values of five years record it was observed that milk production (TL/day) of Baghabarighat, Takerhat, Sree-Nagor, Manikgonj, Rangpur and Tangail MSA was 53.29, 4.19, 2.19, 2.47, 3.30 and 1.15 respectively. It was also revealed that the highest milk production was in February (10.01%) and lowest in September (6.46%) and milk production gradually increased from September to February which was indicated a specific milk trend throughout the year of Milk Vita. Fat and Solids-not-fat (SNF) production was little highest in December to April in Banghabarighat but same trend was not seen in all MSAs. From this study, it may be concluded that year round milk production of Milk Vita as well as Bangladesh were 9.97, 10.01, 9.20, 8.59, 8.17, 8.37, 7.27, 6.50, 6.46, 6.86, 8.73 and 9.88% respectively.
