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Articles by M.A.R. Howlider
Total Records ( 5 ) for M.A.R. Howlider
  M.A. Rashid , M.A.R. Howlider , J. Alam , Md. Abdur Rashid , M.H. Kawsar and S.A. Azmal
  Twenty four indigenous autosomal dwarf hens were selected and divided equally into 3 groups. Rhode Island Red, White Leghorn and Fayoumi Cocks, 2 for each were placed to each group respectively for breeding. Sixty eggs were selected from each group and hatched in a forced draft incubator. Among those, 36 healthy day-old chicks from each group were selected and reared up to 20 weeks of age. The chicks were identified as normal and dwarf genetic groups at 8 weeks of age. The aim of this study was to observe the reproductive parameters of crosses and parameters related to the meat yield of normal and dwarf genetic group of crossbred chicken under farm condition. Fertility, hatchability on total eggs and hatchability on fertile eggs of cross B (95.57; 68.71; 72.41) were higher (p<0.01) than cross A (93.44;63.44;67.62) and cross C (90.92;60.89;67.19). Dead-in-germ and dead-in-shell were statistically higher (p<0.01) in cross C than cross A&B. Reduced adult body size, improved feed conversion and higher livability were found in all genetic groups of dwarf crossbred. Among those, White Leghorn was found as the best one also considering its different dressing yields. Advantages of adw gene in terms of a good scavenger could better be exploited by introgressing in exotic smaller breeds like White Leghorn from indigenous dwarf chicken.
  M.S. Rahman and M.A.R. Howlider
  An investigation was conducted on 540 scavenging chickens of two age groups (below 6 month and above 6 month) taking equal number from each of 6 upzilas (sub-district) under 4 districts in 3 seasons (Summer, Winter and Rainy season). The birds were collected from farmer`s house between 4:0 and 5:0 pm. Collected birds were slaughtered and dissected to collect different parasites from suspected organs. Crop and gizzard contents (CGC) were collected for nutritional analyses. CGC was processed and analyzed for proximate components, calcium (Ca) and phosphorous (P). The CGC contained 2678 Kcal/kg DM TME, 11.72% CP, 0.41% Ca and 0.34% P. Seasonal variation had significant effect on TME availability but not on CP content. Seasons, areas and their interactions had significant effect on Ca availability. Availability of Ca and P to younger birds was fewer than that of to aged birds, but reverse result was found for TME. It was concluded that all scavenging birds were under deficient nutritional status.
  F. Sultana , M.S. Islam and M.A.R. Howlider
  The research was conducted at Bangladesh Agricultural University Poultry Farm, Mymensingh to evaluate the effect of different levels and sources of calcium on egg production and egg shell quality of Japanese quail (Coturnix coturnix japonica) up to 23 weeks of age. For that purpose a total number of 108 Japanese quails aged 20 week were fed on diets containing different levels (2.5%, 2.75% and 3.0%) of dietary calcium from different sources eg. Oyster shell, limestone and Calcium premix. They were placed in the experimental cages. Six birds were considered for a replication of each treatment. The birds were reared in clean laying cages an open sided house. The experimental quails were exposed to identical care and management throughout the experimental period. Feed and water were offered ad libitum. Eggs were collected twice daily at morning and evening. The number of eggs laid by birds in each replication was recorded daily. The external quality of collected eggs were measured weekly from each treatment and level randomly. No significant difference (p>0.05) in egg weight, shell weight, shell percentage, except egg production and shell thickness was noted due to variation of different levels and calcium sources. But as the birds were getting older calcium premix produced better shell quality than oyster shell and limestone. It was concluded that any of these calcium sources can be considered for laying Japanese quail but calcium premix produces better shell quality at later age. This result also suggested that a level of 2.5% calcium increases egg weight and shell thickness, while 2.75% increases body weight and shell weight and 3% increases egg production and shell percentage.
  M.S. Islam , M.A.R. Howlider , M.S. Uddin , F. Kabir and J. Alam
  The aim of this experiment was to compare hatchability traits of four different breeds. A total of 3087 eggs were collected in 3 batches following artificial insemination from individually caged hen. For different breeds of cock; barred plymouth rock, white leghorn, rhode island red and white rock were compared. Fertility was highest in WLH (95.08%), intermediate in WR (92.57%) and lowest and similar in BPR (88.97%) and RIR (88.16%). Breed had little effect on fertile eggs (P>0.05). However, hatchability on total eggs was highest (P<0.05) and similar in WLH (85.99%) and WR (85.46%), lowest in BPR (81.36%) and RIR (80.21%). Breed had no significant (P>0.05) effect on dead in germ and dead in shell. Among 4 genotypes RIR (98.56%) and WLH (97.90%) were the highest (P<0.05) and similar normal chicks hatched, intermediate in BPR (97.73%) and lowest in WR (96.27%). The percentage of abnormal chicks was observed highest in WR (3.73%), intermediate in BPR (2.27%) and lowest in RIR (1.44) and WLH (1.43). Breed had little effect on chick weight at hatching. Percent chick weight was found highest in BPR (67.24%), intermediate in RIR (65.96%) and lowest and similar in WR (65.47%) and WLH (65.17%). Batch had no significant effect among different hatchability traits.
  R. Khatun , M.A.R. Howlider , M.M. Rahman and M. Hasanuzzaman
  A total of 144 day old straight run Arber Acres broiler chicks were fed ad libitum up to 42 days of age on 4 isonitrogenous and isoenergetic diets formulated by replacing dietary fishmeal (FM) by silkworm pupae (SWP) up to 42 days of age. Four diets; D0 (6% FM + 0% SWP), D1 (4% FM + 2% SWP), D2 (2% FM + 4% SWP) and D3 (0% FM + 6% SWP) were fed to observe the effect of dietary SWP on performance. The growth rate, feed conversion, livability, meat yield and profitability increased almost linearly on increasing level of SWP.
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