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Articles by B. K. Roy
Total Records ( 4 ) for B. K. Roy
  M. M. Rahman , M. N. Islam , S. Faruque and B. K. Roy
  Calving records with sex ratio of births were studied in summer, monsoon and winter of local, crossbred and purebred cows. The higher percentage of birth found during summer (39.07%) followed by winter (32.79%) and monsoon (28.14%) and female and male ratio were 48.25:51.75; 44.66:55.34 and 40.83:59.17, respectively in summer, monsoon and winter in local cows; whereas in crossbred cows, birth percentage is highest in summer (36.96%) followed by winter (35.98%) and monsoon (27.06%) and no significant difference were found on sex ratio of births of crossbred cows. The highest percentage of birth of purebred at Holstein-Friesian and Sahiwal cows are noted in winter (40.93%) followed by monsoon (30.48%) and summer (28.59%) and no significant difference were found on sex ratio of births of purebred cows in different seasons.
  S. Faruque , S. S. Husain , M. M. Rahman , B. K. Roy , M.N. Islam and M.S. Islam
  In this study sixty three farmers mainly from land-less and small category, having some previous experience of rearing goats were selected. There were three genetic groups viz. I) jamunapari male × black bengal female ii) selected black bengal male × selected black bengal female and iii) random black bengal. Feeding and management systems of keeping goats were almost similar. No extra inputs were provided to them except grazing from morning to evening. The main objective of this study was to investigate the effect of selection and crossbreeding in black bengal goats on various reproductive characteristics. Traits considered for the present study were age at puberty, number of services per conception, gestation length, litter size, age at first kidding, post partum heat period, kidding interval, abortion rate and survival rate of kids. Analysis of variance indicated a highly significant (p<0.01) effect of genetic groups on post-partum heat period, kidding interval and abortion rate. Gestation length was significantly (p<0.05) affected by genetic groups. Age at puberty, number of services per conception, litter size, age at first kidding and survival rate were not affected significantly (P>0.05) by genetic groups.
  M. A. K Azad , M. Hasanuzzaman , G. Miah and B. K. Roy
  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.
  B. K. Roy , K. S. Huque , M. R. Islam , M. Hasanuzzaman and M. M. Rahman
  The present study examines the consumption pattern of milk and milk products among different income groups in some selected areas in Bangladesh. Family budget data were collected through household survey during September` 01 to May 2002 for 179 selected households from the three different areas of Bangladesh, comprising 44 from Rural, 61 from Municipality town and 74 from Metropolitan city households formed the basis. The sample households were post classified into 5 income groups based on monthly household income as follows: (I) < Tk. 3000; (II) Tk. 3001-6000; (III) Tk. 6001-9000; (IV) Tk. 9001-12000 and (V) >Tk. 12000. Among milk and milk products, the major allocation of expenditure was devoted to liquid milk followed by sweetmeats and powder milk and `other milk products`. The municipality town households consume more milk, sweetmeats and dahi than Rural and Metropolitan city. On the other hand, Metropolitan households consume more powder milk, condensed milk, ghee and ice cream. Milk and some milk products consumption and expenditure on it increased substantially, with the increase of income in all the areas.
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