This survey study was conducted in Tangail, Jamalpur, Bogra, Sirajganj, Pabna and Thakurgaon districts for household farming, and in Bhola, Noakhali, Lakshmipur and Patuakhali districts for to undertake an assessment on the management factors in household and identifying the potentiality and constraints in milk production questionnaire was used for data collection by direct interviewing of buffalo farmers. From this study, it was revealed that 82% of the farmers have 1 to 3 buffalo per household and 73% of the farmers have 51 to 200 buffalo per bathan. Buffaloes were raised in homestead and approximately 5 grazes per day in household farming. Small quantity of concentrate feeds were offered to buffalo by the rich farmers during dry season. On the other hand, in buffalo on grazing at public land. In household, the average daily milk production was 3 to 8 liters and total milk yield was 799 liters in a lactation length of 270 days. In production was 1 to 2 liters and total milk yield was 435 liters in a lactation length of 215 days. The average age of first calving, service per conception, gestation period and calving interval were 39 months, 1.9 numbers, 310 days and 490 days, respectively in hou first calving, service per conception, gestation period and calving interval were 40 months, 2.1 numbers, 315 days and 530 days, respectively in the buffalo nutrition in the bathan

Quality of selected commercial pickles and chutneys were evaluated by conducting a baseline survey on the consumer attitude towards the products and analyzing the selected products for adulterants and performing sensory evaluation. The pickle and chutney samples were analyzed in selected accredited laboratories for the physicochemical parameters such as fluid portion percent by mass of the net mass, acidity as citric acid (% mg/gm), sodium benzoate (mg/Kg), arsenic (mg/Kg), Lead (mg/Kg), copper (mg/Kg), zinc (mg/Kg), tin (mg/Kg). The result showed that all the commercial samples have fluid portion within the BSTI range except samples 'D' and 'E' and all the heavy metals were below the detection level. In case of samples 'A' and 'B' acidity was lower than the optimum value. However, preservative used in the samples are much higher than that of accepted level. From the sensory and organoleptic evaluation it was found that the average scores obtained by the pickles and chutney products for colour & texture, taste & flavor, absence of defects and total scores were satisfactory in comparison to BSTI standard. Concerning to total energy content mango pickles sample 'A' has greater energy content than sample 'B'. Among chutneys sample 'C' has greater energy content where sugar is the main source of energy. In conclusion, commercial pickle and chutney may be recommended as safe and fit for consumption as the values for quality and sensory parameters comply with the BSTI standards. The current views of consumers about the quality of commercial pickle and chutney obtained from the baseline survey has been proved wrong after comparing analyzed values with those standards.

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The present study was conducted to evaluate the effect of different levels of methionine supplementation on feed intake, nutrient digestibility and growth performance of growing rabbit. Sixteen weaned crossbred New Zealand White (NZW) growing rabbits (30-35 d) were distributed into four treatment groups having four replications in each group using a Completely Randomized Design (CRD). Basal diet composed of green grass (dhal grass) and concentrate mixture which was offered ad libitum basis for 56 days period. Four levels of methionine such as 0.0% (control), 0.15%, 0.25%, and 0.35% were supplemented randomly to rabbits. Results showed that supplementation of methionine did not affect green grass intake. Cumulative as well as daily concentrate and DM intake were significantly (p<0.05) higher for all methionine groups than control group. Final body weight gain as well as daily, weekly and cumulative body weight gains were improved significantly with increasing level of methionine. It was found that methionine had significant (p<0.01) effect on digestibility of DM, CP, NFE and EE but CF digestibility did not differ significantly. Digestibility was improved with increasing the level of methionine. Feed conversion ratio also decreased significantly with methionine supplementation, and 0.25% methionine group showed the best performance among the four treatments.

Low molecular weight chemical compounds or intermediate products of a metabolism or other cellular processes are called metabolites. The objective of the present study was to investigate the variations in the metabolite concentration in the milk from crossbred water Buffalo (B), Holstein cross (H), Indigenous cattle (I) and Red Chittagong Cattle (R) and the relationships among those metabolites. The concentration of citric acid, ? -keto glutaric acid (?-keto GA), orotic acid, pyruvic acid, succinic acid, lactic acid, formic acid, uric acid and propionic acid were measured by using High Performance Liquid Chromatography. Pooled milk samples of nine B, fifteen I and twenty R cows were collected from the research farm of Bangladesh Livestock Research Institute, Savar, Dhaka, Bangladesh. The pooled milk samples of H were collected from twenty five cows of Central Cattle Breeding Station and Dairy Farm, Savar, Dhaka, Bangladesh. All the sampling was done from the morning milking. The samples were preserved by adding ‘bronopol tablet’ and frozen and stored at -20 °C. Except propionic acid, all the metabolites varied significantly (p<0.01) among the milk types and B milk had lowest concentration of them. The highest concentration of citric acid (ppm) was 2245.50±39.90 in I milk followed by 2156.60±26.60 in R, 1858.30±8.70 in H and 1366.70±33.70 in B milk. The H, I and R milk were found similar in their ?-keto GA content. Similarities were also found for succinic acid between H and R milk and so for H and I milk in uric acid content. Highest formic acid was found in H milk (392.78±2.23 ppm) and the lowest was 308.91±3.75 ppm in R milk while B and I milk was found similar. The lowest concentration of uric acid was found 0.44±0.26 ppm in B milk and R milk had the highest content (11.38±1.10 ppm). Pyruvic, formic and propionic acids showed no significant relationship among them and with others as well. The most highly significant (p<0.01) correlation was found between orotic and ?-keto GA (r=0.915) and between uric and succinic acid (r=0.914). So, the metabolites showed a considerable variation in their concentration in different types of milk and also some of the parameters showed significant relationship among them. DOI: http://dx.doi.org/10.3329/bjas.v42i2.18504 Bang. J. Anim. Sci. 2013. 42 (2): 152-157