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RISS 인기검색어
- 검색키워드
- 저자 : Rahman Mohammad Mijanur (검색결과 3 건)
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Idris Siti Khadijah,Ramli Bin Abdullah,Wan Embong Wan Khadijah,Mohammad Mijanur Rahman 한국통합생물학회 2013 Animal cells and systems Vol.17 No.3
Combination of different chemicals has been an effective method to activate oocytes. The objectives of this study were to evaluate the optimal: (1) concentration (Experiment 1) and duration (Experiment 2) of strontium chloride (SrCl2) in the presence of cytochalasin B (CB), (2) secondary activation agent [6-dimethylaminopurine (6-DMAP),cycloheximide (CHX) and CB] in combination with calcium ionophore (CaI) (Experiment 3) and (3) ethanol (EtOH)concentration in combination with 6-DMAP (Experiment 4). There were no significant (P0.05) differences in cleavage (86.8289.06%) and blastocyst (33.4246.83%) rates when oocytes were treated with various concentrations of SrCl2 (210 mM). Three-hour duration generally showed the highest cleavage (93.83%) and blastocyst rates (60.42%) compared to other durations. Comparing with various combinations, CaI6-DMAP showed the highest cleavage at all stages of development and significantly (PB0.05) higher from other combinations at 8-cell (50.58%),morula (30.29%) and blastocyst (23.28%) stages. When comparing the EtOH concentrations, 8% EtOH gave significantly (PB0.05) highest cleavage rates at 8-cell stage (39.70%), morula (21.50%) and blastocyst (13.86%) stages followed by 9% and 7% EtOH. In conclusion, 10 mM SrCl25 mg/ml CB in calcium-free Chatot Ziomek Bavister medium for 3-h incubation duration gave the highest cleavage rates of parthenotes mouse oocytes.
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Ishigaki, Genki,Nitthaisong, Pattama,Prasojo, Yogi Sidik,Kobayashi, Ikuo,Fukuyama, Kiichi,Rahman, Mohammad Mijanur,Akashi, Ryo Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.5
Objective: The preference evaluation of cattle is an important factor for estimation and improvement of the grazing amounts of newly introduced or bred grasses or cultivars in barn. This study was performed to assess the grazing behavior (the amount of grazing and/or the grazing speed) of cattle as indirect method using newly bred Brachiaria ruziziensis tetraploid strain 'OKI-1'(BR) hay as treatment group and Cloris gayana 'Callide' (CG) hay as control group. It also compared the feasibility of using behavioral differences between two groups as one criteria for evaluating preference by Japanese black cattle in barn. Methods: Three experiments were carried out using 12 growing Japanese Black cattle including 6 males and 6 females. In each experiment, the four Japanese Black cattle (2 males and 2 females) were placed in separated stall and allowed to graze BR and CG in manger that was separated into two portions for about 30 min. The position and behavior of the cattle were recorded, and weighed the residual of each gay at 15 and 30 minutes after experiment start. Results: The BR was superior to CG in chemical composition such as protein, fibers and non-fibrous carbohydrate. The cattle, over all, tended to prefer BR over CG in the first half 15 minutes in terms of the time spent and amount of grazing. Additionally, growing cattle exhibited neophilia for BR bred newly. Conclusion: These findings indicated the current approach could be applied for one of criteria to evaluate the preference of hay by Japanese black cattle under indoor housing environment.
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Umami Nafiatul,Rahayu Eka Rizky Vury,Suhartanto Bambang,Agus Ali,Suryanto Edi,Rahman Mohammad Mijanur 아세아·태평양축산학회 2023 Animal Bioscience Vol.36 No.1
Objective: One hundred hybrid male ducks (Mojosari×Alabio) were used to examine the efficacy of chicory supplementation as nutritional feed manipulation on production performance, and blood lipid profile of hybrid ducks. Methods: The ducks were tagged, weighed, and then allotted randomly to one of the four treatment diets using a completely randomized design. The experimental diets were: i) P0 (100% basal diets+0% chicory as control), ii) P1 (95% basal diets+5% chicory), iii) P2 (90% basal diets+10% chicory) and iv) P3 (85% basal diets+15% chicory). For each treatment group, there were 5 replicates of 5 birds each. All experimental diets were isonitrogenous and isocaloric using locally available ingredients. Results: Hybrid ducks with fed diets supplemented fresh chicory (5%, 10%, and 15%) showed increased feed intake and body weight gain, as well as feed conversion ratio to be smaller than those ducks fed diets without chicory supplementation (control). The ducks fed 10% chicory supplementation contained significantly (p<0.05) lower ash and higher organic matter contents of meat than those ducks fed other diets. The ducks fed 15% chicory supplementation showed the lowest crude protein and cholesterol content of meat among the treatment diets. Ducks fed chicory supplementation showed lower (p<0.05) blood cholesterol and triglyceride levels than those ducks fed without chicory supplementation, while dietary interventions had no major (p>0.05) influence on low-density lipoprotein and high-density lipoprotein levels in duck blood. Conclusion: In this study, 10% chicory supplementation showed the best results characterized by an increase in growth performance, carcass quality, small intestinal histomorphology, and lower cholesterol levels of meat.
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