http://localhost:8080/handle/123456789/2808 Wed, 08 Apr 2026 14:29:41 GMT 2026-04-08T14:29:41Z http://localhost:8080/handle/123456789/4600 COMPARATIVE STUDY ON PHYSICOCHEMICAL PROPERTIES AND MINERAL PROFILING OF HIGH YIELDING RICE VARIETIES (HYVs) IN BANGLADESH SINGH, SAMIRON KUMAR The study was conducted to explore a comparative study on physicochemical properties and mineral profiling of high yielding rice varieties (HYV) in Bangladesh. A total of ten different rice varieties evaluated for various quality aspects in terms of physicochemical, cooking, pasting and mineral characteristics at both unparboiled and parboiled condition. Among the ten rice varieties BRRI dhan62 had the highest broken rice percent and length breadth ratio (L/B). In both conditions, milling outturn (MOT) was found the highest values in BRRI dhan64. Head rice yield (HRY) was below 75% for all tested varieties. Cooking time (CT) varied ranges from 16.2 min to 20.5 min for all tested HYVs. BRRI dhan64 has the highest imbibition ratio (IR) in both conditions. The highest elongation ratio (ER) was observed in BR6 and BRRI dhan64 at unparboiled condition and BR6, BRRI dhan35, BRRI dhan36, BRRI dhan62 and BRRI dhan64 at parboiled condition. BRRI dhan43 and BRRI dhan62 have the highest (25.5%) and the lowest (18.5%) apparent amylose content (AAC) respectively in unparboiled condition. The highest AAC was found for BRRI dhan43 (26.8%) and the lowest for BRRI dhan74 (19.2%) at parboiled condition. Alkaline spreading value (ASV) of the tested HYVs ranges from 3.3 to 7.00. The highest ASV (7.00) and lowest ASV (3.3) were found in BRRI dhan36 and BRRI dhan62 respectively at unparboiled condition. The highest ASV (5.6) was observed in BR6 and BRRI dhan36 and lowest ASV (3.2) was observed BRRI dhan62 at parboiled condition. All tested HYVs showed moisture content ranges from 11.5% - 13.3%. We found that the range of protein content (PC) were 7.1% to 10.4% and the highest PC recorded was for BRRI dhan36 (10.4%) in selected popular BRRI HYVs in Bangladesh. A wide range of variation on the content of phytic acid and minerals like phosphorus, iron, zinc and calcium were found in the tested HYVs of rice at both unparboiled and parboiled condition. Among the tested HYVs, BRRI dhan42 and BRRI dhan43 contain lower content of phytic acid and higher content of minerals, likely zinc, iron, calcium and phosphorus. A Thesis Submitted to the Department of Biochemistry, Sher-e-Bangla Agricultural University, Dhaka in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE IN BIOCHEMISTRY Fri, 01 Dec 2017 00:00:00 GMT http://localhost:8080/handle/123456789/4600 2017-12-01T00:00:00Z http://localhost:8080/handle/123456789/3781 SOCIO DEMOGRAPHY OF BROILER FARMERS, THEIR PERCEPTION AND INDISCRIMINATING USE OF ANTIBIOTIC AND ITS EFFECTS LINA, NUSRAT JAHAN Residual result of antibiotics and its inefficacy to microorganisms has been recognized as a public health hazard worldwide. This study was conducted among 98 broiler farms of three selective districts of Bangladesh from August to December, 2019 to explore the antibiotic use pattern and perception of farmers on antibiotic. Semi-structured questionnaire was used to gather information. Farmers administered antibiotics mainly as therapeutics (84.69%). Over one third (33.67%) farmers used antibiotic as prophylaxis. Almost half (48.97%) bought antibiotics with registered vet doctor’s advice. But 43.88% farmers took self-decision for antibiotics use. Ciprofloxacin (41.83%), Colistin sulphate (24.49%) and Enrofloxacin (17.35%) were found to be three main therapeutic drugs of choice. Nearly half (47.96%) of respondents thought that malabsorption was the main residual effect of antibiotics. A vast majority (91.84%) of poultry growers had no idea about antibiotic resistance. Antibiotics were used ordinarily in broiler farm in the study area. Intervention should be taken to minimize the use of unethical and self-choosing antibiotics in the study area. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka. In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN BIOCHEMISTRY SEMESTER: JULY- DECEMBER, 2020 Tue, 01 Dec 2020 00:00:00 GMT http://localhost:8080/handle/123456789/3781 2020-12-01T00:00:00Z http://localhost:8080/handle/123456789/3780 EVALUATION OF PHYSICO-FUNCTIONAL CHARACTERISTICS AND NUTRITIONAL STATUS OF SOME PIGMENTED WHOLE GRAIN AVAILABLE IN BANGLADESH SUBRIN, SUMAIYA Maize and rice are the highest consumed cereals in the world. Pigmented and nonpigmented maize can be utilized like rice if its complete properties are known. There are some pigmented and non-pigmented maize and rice varieties available in Bangladesh for human consumption. The present research was conducted to evaluate and compare physico-functional and nutritional properties of colored maize and rice. Maize such as-yellow maize, red maize, white maize, purple maize, mixed colored maize, deep red maize; and rice such as red rice was used for investigation. Study revealed that white maize was the brightest grain among the samples with its highest L* value while purple maize, deep red maize and red rice showed the lowest L* value. The lowest bulk density (0.565 ± 0.005 g/mL) and % change (15.05 ± 0.31%) in sedimentation was recorded for purple maize flour but white maize flour showed the highest change in sedimentation value (35.43 ± 0.59%). All most all samples were comparable for proximate composition. Red maize and purple maize contained the highest amount of ash (2.27 ± 0.059% and 2.27 ± 0.05% respectively) while mixed maize contained the lowest amount of ash (1.22 ± 0.09%). Mixed maize contained the highest crude fibre (4.17 ± 0.049%) which was comparable to red rice on the other hand white maize had the lowest crude fibre (3.31 ± 0.06%). Purple maize along with mixed maize and deep red maize had the highest carbohydrate content (72 to 73%) whereas local mixed maize and deep red maize had the lowest protein content (6%). Red maize had the highest protein content which was comparable to yellow maize, and the lowest carbohydrate content (65.76 ± 0.57%) which was comparable to white maize and red rice. Red rice performed better than the other samples for oil content (6.19%). In case of Mg and S content, all most all samples showed similarity; and the purple maize, mixed maize and deep red maize were promising for Ca content. White maize had the highest amount of Zn (19.79 ± 0.1 mg/100 g) while it had the lowest amount of Ca (140.16 ± 10.8 mg/100 g), and Mn (0.51 ± 0.05 mg/100 g). Yellow maize showed the highest amount of Fe (4.99 ± 0.37 mg/100 g); and the lowest Cu content (0.14 ± 0.02 mg/100 g) which was similar to mixed maize (0.13 ± 0.01 mg/100 g). The red rice was poor in Zn (4.02 ± 0.13 mg/100 g) and Fe (0.61 ± 0.14 mg/100 g) content. Overall, whole grain maize and rice samples were comparable from the physico-functional and nutritional properties. Therefore, whole grain pigmented and non-pigmented maize can be utilized like rice as rich source of nutrition as regularly consumed cereals to combat nutritional deficiency. A Thesis Submitted to the Faculty of Agriculture Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN DEPARTMENT OF BIOCHEMISTRY SEMESTER: DECEMBER, 2020 Tue, 01 Dec 2020 00:00:00 GMT http://localhost:8080/handle/123456789/3780 2020-12-01T00:00:00Z http://localhost:8080/handle/123456789/3779 BIOCHEMICAL AND MOLECULAR CHARACTERIZATION OF SOME ADVANCED MUTANT RICE (Oryza sativa) LINES OF BINA NADIM, MD. KAWSAR ALAM Rice (Oryza sativa) is one of the oldest cereal grains in the world and the main staple food of Bangladesh. In rice, amylose and protein are the main biochemical factors in selection and breeding of good eating quality varieties. A total of 12 rice genotypes [10 advanced mutant lines, 1 released mega variety (BRRI dhan49) and 1 landrace (Luxmidigha)] was incorporated in this study to assess their amylose and protein content as well as their genetic diversity relationship. Among the genotypes, Magic-86 was highest in amylose content (25.6%). The second and third highest amylose content were RM-40(C)-4-2-8 (25.1%) and Magic-10 (24.4%), respectively. Amylose of other genotypes ranged from 23.9 to 20.3%. SSB-3 was found to be the highest in protein content (8.86%) whereas Magic-86 (8.78%) and Luxmidigha (8.73%) were the second and third highest, respectively. Protein content of other genotypes were ranged from 8.50 to 5.04%. The highest gene diversity (0.81) was observed in RM519 and the lowest (0.28) was in RM111. The PIC values ranged from 0.24 to 0.78. The highest Nei’s genetic distance value 0.87 was found in RM-16(N)-10 vs RM-40(C)-4-2-8 and the lowest value 0.18 was found in LD-200-1-3-3-8 vs LD-200-1-3-2-4. A dendogram was constructed based on Nei’s similarity coefficient using UPGMA method to group the selected genotypes and observe relationship among them. Six major clusters were built at 0.7 cut off similarity coefficient. The highest number of genotypes was observed in cluster-6 (4 genotypes) and the lowest in cluster-1, cluster-2 and cluster-4 (each contained 1 genotype). Cluster-3 and cluster-5 contained 3 and 2 genotypes, respectively. The genotypes showing diverse ranges of amylose and protein content tended to cluster together in the dendogram with some exceptions. These findings may play potential role for the selection of parents or lines in future breeding program to develop better quality rice varieties for Bangladesh. A Thesis Submitted to the Faculty of Agriculture Sher-e-Bangla Agricultural University, Dhaka-1207 in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN BIOCHEMISTRY SEMESTER: JULY-DECEMBER-2020 Tue, 01 Dec 2020 00:00:00 GMT http://localhost:8080/handle/123456789/3779 2020-12-01T00:00:00Z