The research was conducted to study the effect of heat stress on blood parameters in indigenous sheep. Nine sheep were divided into three groups which were almost similar in age, sex and weight. Three groups were divided as zero hour (T0), four hours (T4) and eight hours (T8) heat exposure to direct sunlight. During experimental period temperature–humidity index (THI) value was calculated as 27.09 which indicate T4 and T8 groups were subjected to heat stress condition for at least four hours and eight hours respectively every day. The amount of red blood cell (RBC), hemoglobin (Hb%) and packed cell volume (PCV%) were increased significantly (p<0.05) with the increase of heat stress but the amount of white blood cell (WBC) had no significant difference (P>0.05) among the treatment groups. It can be concluded that heat stress had significant changes on some blood parameters in indigenous sheep. DOI: http://dx.doi.org/10.3329/jbau.v12i1.21253 J. Bangladesh Agril. Univ. 12(1): 91-94, June 2014

The research was conducted to study the effect of heat stress on blood parameter, carcass characteristics and meat quality of the Black Bengal goat. Nine goats were randomly and equally divided into three groups having almost same age and weight. Three groups were divided as zero hour (T0), four hours (T4) and eight hours (T8) of heat exposure. The T0 group were not exposed to heat stress, the T4 and T8 group were exposed to heat by keeping them at outside for 4 (four) hours and 8 (eight) hours from 9.00 AM to 1.00 PM and from 9.00 AM to 5.00 PM, respectively. Temperature–humidity index (THI) was calculated as 26.88 indicating all the experimental animals were in extreme severe heat stress. The blood parameter such as RBC, PCV%, Hb%, WBC was significantly (p<0.01) higher in T8 group than those of T4 and T0 groups. There was also significant (p<0.05) effect of heat stress on pH of the meat from different groups of the Black Bengal goats. By-products e.g., blood, pluck, spleen and kidney, and cooking loss were significantly (p<0.01) increased with the increase of the heat, but no significant differences were observed for pre-slaughter parameters, carcass weight, drip loss, dressing percentage, and proximate composition of the goat meat for DM, CP and Ash, while the EE significantly (p<0.05) differed among the heat treated groups. Heat stress significantly affected the blood parameter, cooking loss, pH, by-product of goats rather than non heat stressed group. It indicates that heat stress limits the qualitative and quantitative production characteristics of goat meat. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15783 Bang. J. Anim. Sci. 2013. 42 (1): 57-61

The research was conducted to study the effect of heat stress on carcass characteristics and meat quality in indigenous sheep. Nine sheep were divided into three groups which were almost similar in age, sex and weight. Three groups were divided as zero hour (T0), four hours (T4) and eight hours (T8) heat exposure to direct sunlight. During experimental period temperature–humidity index (THI) value was calculated as 27.09 which indicated T4 and T8 groups were subjected to heat stress condition for at least four hours and eight hours respectively every day. Slaughter weight, body length and heart girth had no significant difference among the treatment groups. Dry matter, ash and ether extract had no significant difference (p>0.05) among the treatment groups but crude protein were increased with the increase of heat stress from T0 to T8 group (p<0.05). Drip loss was increased (p<0.05) in non-exposure group than treated groups but there is no significant result (p>0.05) found in pH and cooking loss. Carcass weight and eye muscle area had no significant difference (p>0.05) among the treatment groups but dressing percentage was decreased with the increase of time in heat treated groups (p<0.01). Significant difference (p<0.05) were found in weight of heart, kidney, lung + trachea and pluck between control and heat treated groups. The significant difference (p>0.05) in empty gut was found in gut with content and gut fill in heat treated groups. It can be concluded that heat stress had significant changes on carcass characteristics and meat quality of indigenous sheep.DOI: http://dx.doi.org/10.3329/bjas.v43i2.20717 Bang. J. Anim. Sci. 2014. 43 (2): 147-153

A total of 72 as hatched Cobb 500 broilers were fed ad libitum on a diet with 0 %, 0.5 %, 1.0 % and 1.5 % of coriander seed meal (CSM) to assess its feeding value. Treatment group with 1.5 % of CSM significantly (p<0.05) affected live weight of broilers at the age of 28 and 35 days. Among the dietary groups there is no significant difference in feed intake and feed efficiency. Meat yield characteristics especially abdominal fat level decreased significantly (p<0.01) at 1.5 % level of CSM. Cost of production per kg live broiler decreased when dietary inclusion level was increased. Profit per kg of live broiler was significantly (p<0.05) increased with the increase levels of dietary CSM. These results suggest that the CSM could be considered as a potential natural growth promoter for poultry, and showed the best responses at a 1.5 % level of inclusion. It was concluded that the supplementation of the coriander seed meal to broiler diet had beneficial effects on body weight gain, feed conversion ratio and carcass yield.DOI: http://dx.doi.org/10.3329/bjas.v43i1.19383 Bang. J. Anim. Sci. 2014. 43 (1): 38-44

The performance of twenty wheat genotypes under Polyethylene Glycol (PEG) induced water stress during germination and early seedling growth stages were tested under three levels of water potential i) Control (Tap water), ii) -2 bars and iii) -4 bar at the Crop Physiology and Ecology Laboratory of Hajee Mohammad Danesh Science and Technology University, Dinajpur during September 2014 to October 2014. Rate of germination and vigor index of all wheat genotypes were delayed with the increment of water stress induced by PEG. Shoot and root lengths and seedling dry weight of 10 days old seedlings were found to be reduced due to the increment of water stress. However, the degree of reduction of these parameters with the increment of water stress was not similar for all wheat genotypes. Stress tolerance index (STI) based on seedling dry weight indicated a wide difference in stress tolerance among the wheat genotypes. At moderate water deficit stress, BARI Gom 25, E 34, E 28 and BAW 1170 showed more stress tolerance and the wheat genotypes-Sourav, E 23 and BAW 1140 showed greater stress sensitivity than the other wheat genotypes. At higher water deficit stress, BARI Gom 25, BARI Gom 28, E 28 and BAW 1170 showed more stress tolerance and the wheat genotypes-Satabdi, Sourav, BARI Gom 26, E 23, E 38, E 24, BAW 1163, BAW 1140 and BAW 1151 showed greater stress sensitivity than the others. Considering both moderate and high water deficit stress, BARI Gom 25, E 28 and BAW 1170 were found as tolerant and Sourav, E 23 and BAW 1140 were found as water deficit stress sensitive wheat genotypes.

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The study was conducted to find out the performance of broiler birds fed different levels of potato meal (PM). The levels of potato meal in the different treatment rations were control 0, 5, 10, and 15 g/kg, respectively. Dietary levels of PM did not affect live weight at 7, 21, 28, 35 and 42 days of age.However, live weight of broiler differed significantly (p<0.05) among different levels of PM in the diet at 14 days of age and increasing level of PM had a tendency to decrease live weight between 7 and 14 days of age. Feed intake increased linearly with the increasing level of dietary PM (p<0.05) up to 35 days of age followed by a decline at 42 days of age. At 14 days of age, feed intake in control diet and 10g PM diets were similar and intermediate, it was highest in 15g PM and lowest on 5g PM diet. However, feed intake did not differ (p>0.05) among different levels of PM in diet at 21, 28, 35, and 42 days of age.Feed conversion ratio (FCR) decreased between 7 and 14 days of age with the least conversion observed at 15 g/kg PM level. FCR didn't differ significantly (p<0.05) among different levels of PM in diet.Mortality did not alter due to the increasing levels of PM regardless of age of broiler. Dietary PM did not modify the dressing yield, breast meat, thigh meat and other carcass traits. Feed cost in different dietary PM groups were more or less similar, whereas total production cost per kg broiler were increased in 10 % Potato Meal than control (p<0.05). However, sale price (Taka/broiler) and sale price (Taka/kg broiler) were more or less similar in all treatments. Profit per broiler and per kg broiler were reduced as the PM level increased in the diet. It was therefore concluded that use of potato meal at 5 to 15g/kg diet may not be suitable for growth and profitability in broiler production.

An experiment was conducted at the research field and laboratory in the Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur, during the period of April to August, 2016 to study the effect of spacing and number of seedlings hill-1 on the yield of Aus rice var. BRRI dhan48. Four spacing’s viz. 20 cm × 10 cm, 20 cm × 15cm, 20cm × 20 cm and 20 cm × 25cm and three number of seedlings hill-1 viz. 1, 2 and 4 were included in the study. Results indicated that the highest number of total tillers hill-1 (22.86), number of effective tillers hill-1 (21.24), number of grains panicle-1 (128.79) and 1000-grain weight (23.30g) were found with 20cm × 25cm spacing. The highest plant height (104.27 cm), number of leaves plant-1 (35.80), grain yield (3.06 tha-1), straw yield (3.37 tha-1) and harvest index were obtained from 20 cm × 10 cm spacing. The highest grain yield of 2.98 t ha-1 was obtained from 4 seedlings hill-1, while the lowest 2.47 t ha-1 from 1 seedlings hill-1. The highest grain yield of 3.40 tha-1 was obtained from 20 cm × 10 cm spacing with 4 seedlings hill-1 while the lowest grain yield of 2.21 tha-1 from the wider spacing. Results of the present study revealed that 20 cm x 10 cm spacing with 4 seedlings hill-1 combination was found to be the best for obtaining maximum grain yield of Aus rice var. BRRI dhan48.Bangladesh Agron. J. 2017, 20(2): 17-26