Effects of incubation times and moisture regimes on pH values and exchangeable cations in acid sulfate soils as influenced by application rates of basic slag     

Abul Hasnat Md. Shamim  Md. Harunor Rashid Khan  Takeo Akae 《Paddy and Water Environment》2009,7(2):95-103

Severe acidifications in acid sulfate soils (ASSs) have occurred worldwide due to sulfuric acidity, which requires sustainable measures for their reclamation. Accordingly, an incubation study was conducted with the topsoil of two different ASSs (Cheringa and Badarkhali) to evaluate the effects of basic slag (BS; size <1 mm, pH 9.6, Ca 20.8%, Mg 9.8%, etc.), on reduction of acidity and changes in exchangeable cations. It is noted that BS is a byproduct of steel industry in Bangladesh and can be collected almost free of charge. These soils received BS at the rate of 0 (T₀), 11 (T₁), 22 (T₂) and 33 (T₃) t ha⁻¹ under various moisture regimes (saturated condition M₁,_, i.e., 100% moisture content, wetting–drying cycles of 100 and 50% moisture M_2, and moisture at field condition M₃, i.e., 50%). The impacts of these treatments on some selected parameters in these soils were studied within 180 days of incubation. The application of BS was found to increase the pH of soils from 3.6 to 5.1 for Cheringa, 3.9 to 5.2 for Badarkhali soils at the end of incubation. These increments were more striking with the highest doses of BS under saturated moisture conditions in both of the soils. The ECe of the soils was not much influenced by the application of BS regardless of time. The treatments exerted significant (P ≤ 0.05) effects on exchangeable cations in different periods of incubation. The striking changes were recorded for the rate of increments of Ca²⁺ and Mg²⁺, which were about 2–3 times higher for Ca and more than 2 times higher for Mg²⁺ compared with the control after 180 days of incubation. These results suggest that the application of BS not only increased the Ca²⁺ to the higher amount than that of the increment of Mg²⁺ in the soils, but also improved one of the important criteria of Ca²⁺ and Mg²⁺ ratio in the soils.  相似文献   

Antiulcer activity of Mikania cordata     

Rabin Kumar Paul  A. Jabbar  M. A. Rashid   《Fitoterapia》2000,71(6)

The alkaloidal fraction obtained from an ethanolic extract of the leaves of Mikania cordata exhibited significant in vivo antiulcer activity in diclofenac sodium-induced gastric erosions in Long Evans rats.  相似文献   

Factors affecting reproductive performance in dromedary camel herds in Saudi Arabia     

Ali  Ahmed  Derar  Derar  Alsharari  Abdulhadi  Alsharari  Assaf  Khalil  Rashid  Almundarij  Tariq I.  Alboti  Yaser  Al-Sobayil  Fahd 《Tropical animal health and production》2018,50(5):1155-1160

A survey of 7122 dromedary camels in 115 herds in Saudi Arabia was used to estimate the effects of herd size (HZ; <?25 vs. 25–49 vs. 50–100 vs. >?100 camels), herder/camels ratio (H/C; 1:<?25 vs. 1:25–50 vs. 1:>?50), manager experience (ME; <?5 vs. 5–10 vs. >?10 years), male/females ratio (M/F), housing system (HS; free vs. closed vs. mixed), length of the breeding season (winter vs. winter and spring vs. fall, winter and spring), age at first mating (3 vs. >?3 years), and time of mating after parturition (≤?3 vs. >?3 months) and their interactions on the overall pregnancy rate. Barren females of these herds (n?=?886) were examined for the causes of infertility. Results showed that herds with H/C of 1:<?25 had higher overall pregnancy rate (95.29%) than herds with H/C of 1:25–50 (79.84%) and those with H/C of 1:>?50 (72.79%) (p?=?0.003). Herds having ME of >?10 years revealed greater overall pregnancy rate (94.89%) than herds with ME of 5–10 years (80.54%) and those with ME of <?5 years (72.5%) (p?=?0.001). There were significant interactions between H/C × HZ (p?=?0.003), H/C × HS (p?=?0.006), and ME × HS (p?=?0.02). The overall pregnancy rate did not significantly differ between herds bred females by age of 3 years and those bred females by age >?3 years and in females bred within 3 months after parturition and in those bred after 3 months. The mean calving interval was shorter (p?=?0.008) in camels mated within 3 months of parturition (15.25?±?2.8 months) than in those mated after that time (24.33?±?6.5 months). Clinical endometritis, ovarian hydrobursitis, and vaginal adhesions were the common clinical findings in barren females. Thus, efforts to reduce the age at first mating and the interval after calving, increase the number of herders/camels, and control reproductive disorders could improve the reproductive performance and quality of camel herds in Saudi Arabia.

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Influence of green grass-based diets on growth and reproductive performance in dairy heifers     

Habib  M.R.  Rashid  M.H.  Islam  M.A.  Majumder  S.  Islam  K.M.S.  Ahmed  S.  Alam  M.S.  Vargas-Bello-Pérez  E. 《Tropical animal health and production》2018,50(4):889-895

Tropical Animal Health and Production - The objective of this study was to monitor the changes in growth, dry matter intake, and blood profiles (nutrition and reproductive hormones) of dairy...  相似文献   

Differential effects of experimental hyperthyroidism on declined immunity of broiler chicken          下载免费PDF全文

M. S. Khilji  M. A. Sandhu  M. S. Yousaf  A. A. Saeed  H. U. Rehman  H. Zaneb  M. A. Rashid 《Journal of animal physiology and animal nutrition》2018,102(2):e948-e956

Thyroid hormones (THs) are involved in the development of lymphoid organs and regulation of immune function in birds. However, their role as an immune‐modulator in the hyperthyroid state is still debatable. To explore the interrelationship of thyroxine (T₄) and the immune system, chicks were divided into three groups. Group I was comprised of control birds, who received the basal diet while group II and III were given diets supplemented with 5 μg and 10 μg thyroxine/kg feed, respectively, from 15 to 28 days of age. Cell‐mediated immune response was evaluated through in vitro abdominal macrophage phagocytosis assay, macrophage nitric oxide (NO) production, heterophil‐to‐lymphocyte (H:L) ratio and delayed‐type hypersensitivity response against phytohemagglutinin (PHA). Humoural immune response was assessed through serum IgG and IgM antibody production against sheep red blood cells (SRBCs) and antibody production against infectious bronchitis virus (IBV). Sampling was carried out at 7, 14 and 21 days of treatment. Results have shown higher levels (p < .001) of circulating T₄ in both treatment groups compared to the control group. There was a lower (p < .05) macrophage engulfment percentage, an increase in H:L ratio (p < .001) in treated birds, while their NO production remained higher (p < .05) in thyroxine supplemented groups after bacterial lipopolysaccharide stimulation. The humoural immune response revealed a significant decline (p < .001) in IgG, IgM antibody production against SRBCs but IBV circulating antibodies increased with age. In conclusion, hyperthyroidism has a strong co‐relation with decreased immune performance of birds.  相似文献   

Antibacterial activity and cytotoxicity of Miliusa velutina.     

S Jumana  C M Hasan  M A Rashid 《Fitoterapia》2000,71(5):559-561

Goniothalamusin and two mixtures, acetogenins-A and acetogenins-B, isolated from a petroleum ether extract of the stem bark of Miliusa velutina exhibited significant antibacterial and cytotoxic activities.  相似文献   

Antimicrobial and cytotoxic constituents of Loranthus globosus   总被引：2，自引：0，他引：2  

Sadik G  Islam R  Rahman MM  Khondkar P  Rashid MA  Sarker SD 《Fitoterapia》2003,74(3):308-311

(+)-Catechin, 3,4-dimethoxycinnamyl alcohol and 3,4,5-trimethoxycinnamyl alcohol were isolated from the barks of Loranthus globosus. All compounds showed significant antimicrobial and cytotoxic activities.  相似文献   

An Empirical Study on Compatibility of Sarawak Forest Ordinance and <Emphasis Type="Italic">Bidayuh</Emphasis> Native Customary Laws in Forest Management     

Julia Nelson  Nur Muhammed  Rosmalina Abdul Rashid 《Small-Scale Forestry》2016,15(2):135-148

This study was conducted to examine the compatibility between the Sarawak Forest Ordinance and Bidayuh Native Customary Laws in Sarawak and to gather the community members’ opinions on the compatibility of these laws. This study was carried out using two research methods, viz. a literature review and a survey among the Bidayuh community in Bau, Sarawak. The documents reviewed were the Forest Ordinance Chapter 126 (1958) and the Adat Bidayuh Order, 1994. There are several notable differences between the two laws in terms of, forest ownership, losing of rights to forest or inheritance, and the management of forest. A list of statements with six interval scales was presented and a majority of Bidayuh community members neither disagreed nor agreed with the statement, (1) Forest Ordinance respects the Bumiputera people’s rights (37.5 %; SD = 1.259) and (2) Forest Ordinance protects the Bumiputera people’s rights (37.5 %; SD = 1.281). The community members are also not sure about the consistency between these two laws (28.1 %; SD = 1.182). These results indicated the need for the State to respect the natives’ rights toward the forest land and its resources, recognize the Bidayuh Native Customary Laws and for the native people to learn about the constitutional provisions. Further studies are needed because the knowledge of Native Customary Law itself cannot guarantee the natives’ future in terms of economic, social and environmental aspects and there is also a need to review the current laws to achieve the objective to protect and preserve the natives’ rights.  相似文献   

Antimicrobial activity of Toona ciliata and Amoora rohituka     

Chowdhury R  Hasan CM  Rashid MA 《Fitoterapia》2003,74(1-2):155-158

The extracts of two Bangladeshi medicinal plants, Toona ciliata (stem bark) and Amoora rohituka (stem bark), along with siderin, a major coumarin from T. ciliata, exhibited significant in vitro antibacterial activity. The extracts also demonstrated mild antifungal effect.  相似文献   

HIV-inhibitory diterpenoid from Anisomeles indica.     

M Shahidul Alam  M A Quader  M A Rashid 《Fitoterapia》2000,71(5):574-576

The 1H- and 13C-NMR spectral data of ovatodiolide (1), a diterpenoid from Anisomeles indica, and its anti-HIV activity are reported.  相似文献