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Articles by N. Akter
Total Records ( 4 ) for N. Akter
  M. Abu-Tayyeb , I. Jahan , M.A. Hossain , M.M. Hossain , N. Akter and B.K. Nath
  Objective: This experimental study was conducted to investigate the effects of diets and enzyme supplementation on the live weight (LW), feed intake (FI), feed conversion ratio (FCR), viability, leg bone quality and meat yield traits of broilers. Materials and Methods: In a 2×2 factorial experiment, having two diet types [corn-soya meal (CSM) based and corn-wheat-soya (CWS) based] and two enzymes levels (with or without), Broiler chicks (n = 112; Ross308) were assigned to four dietary treatments (CSM-, CSM+, CWS- and CWS+) with four replicates, seven chicks per replicate in a CRD. The chicks were fed on the ready-made broiler diet up to 25 days, after that formulated diets were supplied the birds ad libitum up to 45 days. All the diets were iso-caloric and iso-nitrogenous in nature and supplemented with or without enzymes in mash form. Results: Data revealed that diets (CSM- and CWS-) had no significant effect (p>0.05) on the LW, FI and FCR of broilers but enzymes (CSM+ and CWS+) increased (p<0.5, p<0.01) the LW and FI on day 45. Enzyme, diet and their interaction had no influence (p>0.05) on the viability, latency-to-sit (LTS), gait-scoring (GS) and bone traits of broilers. Diet and their interaction had no influence (p>0.05) on the bone quality traits of broilers except for enzyme. The mineral concentration (Ca%) and other bone traits were increased (p<0.05) by enzymatic diets. The results of dressing percentage, drumstick weight, thigh weight, breast weight, wing weight, back weight, shank weight and neck weight percentage of broilers were unaffected (p>0.05) by enzyme, diet and their interaction. Enzyme and diet had no influence (p>0.05) over the breast weight but its interaction influenced (p<0.05) the breast weight (%) of birds. Giblet and back weights (%) were influenced (p<0.05) by the diet only. Conclusion: It could be concluded that broilers might respond positively to enzymatic diets at the later stage of production.
  N. Akter , M.S. Islam , M.A. Hossain , I. Jahan , M.H. Ahmad and M.M. Hossain
 

Objective: The study was conducted to investigate the productivity of broiler fed diet supplemented with L-methionine. Materials and Methods: Day-old broiler chicks (n = 216: Cobb500) were reared from day 1-33 in the battery cages. The chicks were distributed randomly into four treatments, i.e., D0 (DL-Met), D1 (0.20% L-Met), D2 (0.25% L-Met) and D3 (0.30% L-Met) in a CRD. Each treatment was replicated 6 times with 9 birds per replicate. Chicks were fed commercial starter diet ad libitum up to 2 weeks . After that, test diets were supplied throughout the trial period (15-33 day). All the formulated diets were iso-caloric and iso-nitrogenous. Data were collected for feed intake (FI), live weight (LW), feed conversion ratio (FCR) and livability. Visceral organs and ileal samples were collected on day 33 to assess the gut morphology and gastro-intestinal development of broiler. Results: The data revealed that FI (p<0.01) and LW (p<0.05) of broiler were influenced by treatment without affecting the FCR (p>0.05) up to 33 day. Birds fed D3 diet had higher (p<0.038) LW (1996.50.0 g bird1) at the expense of greater FI (3047.40 g bird1) than that of other diets on day 33. The livability (%) of broilers was unaffected (p>0.05) between treatments. No significant (P>0.05) differences were found in the visceral organ weights (small intestine, proventriculus, gizzard, liver, heart, spleen and bursa) of broilers except for pancreas, which was found higher (p<0.029) in the birds fed D3 diet. The data of gut morphology revealed that broiler fed L-Met diets (D2, D3) had increased (p<0.05) villi width, crypt depth and surface area compared to the birds fed D0 and D1 diets. Conclusion: Chick fed diets supplemented with L-Met had better growth response than that of chicks fed diets with DL- Met.

  M. Akter and N. Akter
 

Objective: This study was undertaken to investigate the effect of xylo-oligosaccharides (XOS) on the growth performance, blood biochemistry and total bacterial count in the intestine of broiler chicken from 13 to 26 days of age. Materials and Methods: A total of 96 day-old Cobb 500 broiler chicks were distributed randomly into four treatment groups with four replicates (6 birds replicate‾1) and fed basal diet (control) from day 1-12. Test diets were formulated with four different levels of XOS (0, 2.5, 5.0 and 7.5 g kg‾1) and offered to the birds from day 13-26. On day 26, the data on growth performance, serum biochemical profile, total viable count in the ileum and cecum, visceral organ weight and carcass yields of the broiler chickens were assessed. Results: There was no effect (p>0.05) of XOS on weight gain and feed intake. However, supplementation of 2.5 g XOS kg‾1 of diet significantly improved the feed conversion ratio (FCR) of the birds. This group of diet also increased (p<0.05) the serum concentration of T3 and T4 but reduced (p<0.05) the glucose level. Diets containing 2.5 and 5 g XOS kg‾1 increased the total viable count in both ileum and cecum. The dressing percentage and relative weight of the pancreas were significantly improved in birds consumed a diet containing 2.5 g XOS kg‾1. The abdominal fat content was low (p<0.05) in birds fed diets containing 2.5 and 5 g XOS kg‾1. Conclusion: Dietary XOS supplementation (2.5 and 5 g kg‾1 of diet) can improve the thyroid hormone activity and total viable count in ileum and cecum, thus improved the FCR of broiler chickens.

  H.M Salim , M. Shahjalal , A.M.M. Tareque and N. Akter
  Six females each of sheep and goats aged about 6 mo and weighing, on average, 9.8 and 9.77 kg, respectively were used to investigate the effect of concentrate supplementation on intake and growth performance under grazing condition. A grazing land was developed and all the goats and sheep were allowed to graze for 7 h daily with or without supplementary concentrate feeding in a 2 x 2 factorial experiment. Herbage yield and composition during experimental period were determined in this study. The average herbage yield recorded in the month of September was significantly (P<0.01) higher than that harvested either in June or December. Major grass species identified in the grazing land were A. compressus (39%), I. cylindrica (24%), P. repens (18%), C. dactylon (13%) and C. rotundus (6%). The highest CP content was observed in C. rotundus (12.27%) and lowest was recorded in. I. cylindrica (9.8%). Grazing intake estimate by either grass harvesting method (0.41 vs 0.28 kg) or animal weight gain method (0.26 vs 0.23 kg) indicated that sheep consumed significantly (p<0.05) higher amount of herbage DM than goats. However, apparent digestibility of all proximate components of herbage did not differ significantly between sheep and goats. Significantly (p<0.05 to p<0.01) higher live weight gain (16.59 vs 3.94 g d‾1) and total DM intake (457.7 vs 253.0 g d‾1) were observed in supplemented group than those of control group but there were no differences between sheep and goats for live weight gain (8.59 vs 11.80 g d‾1) and DM intake (371.0 vs 339.7 g d‾1). The results showed that concentrate supplementation improved growth rate and therefore, feeding of grazing goats and sheep with concentrate supplement may be suggested to optimize growth performance. Moreover, supplementation may be necessary to maintain body condition during the winter season particularly between December and January when the pasture quantity is inadequate in the grazing land.
 
 
 
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