A 45-day experiment was carried out to evaluate the growth performance, digestive enzymes activity and biochemical response of Cirrhinus mrigala fed graded levels of oil. Three isonitrogenous purified diets （6%, 8% ...A 45-day experiment was carried out to evaluate the growth performance, digestive enzymes activity and biochemical response of Cirrhinus mrigala fed graded levels of oil. Three isonitrogenous purified diets （6%, 8% and 10% of oil） were formulated. A total of 108 juveniles of Cirrhinus mrigala （5.95±0.25） g were equally distributed in triplicate groups in nine plastic tanks of 100 L capacity and fed under natural light cycle. Growth performance of the fish significantly reflected the effect of inclusion levels of oil tested but the diet with 8% lipid had the best significant growth performance [% weight gain, Feed Conversion Ratio （FCR） and Specific Growth Rate （SGR）], across different experimental groups. Levels of secretion of digestive enzymes in the fish fed different experimental diets resulted in significant values of （p〈0.05） amylase and lipase, while Aspartate transaminase （AST）, Alanine transaminase （ALT）, Lactate dehydrogenase （LDH） and Malate dehydrognnase （MDH） values in the muscle and liver decreased significantly （F〈0.05） as the levels of oii in the diet increased. However, serum biochemical parameters did not record any significant difference 6o〉0.05） with the exception of the total lipid across diets. The study confirmed the inclusion effect of graded levels ofoil in juvenile Mrigal diet, but the inclusion should not be more than 8% to avert growth depression.展开更多
A field experiment was carried out at Abu-Rawash sewage farm to appraise the effect of certain novel remediative amendments on the quality of oil as well as the vegetative parameters and yield criteria of canola plant...A field experiment was carried out at Abu-Rawash sewage farm to appraise the effect of certain novel remediative amendments on the quality of oil as well as the vegetative parameters and yield criteria of canola plant used as hyperaccumulator for the remediation of sewaged soils. The treatments included fallow soil （irrigated without growing canola）, soil cultivated with canola （Brassica napus L.） and inoculated with arbuscular mycorrhiza （AM）, soil inoculation with Thiobacillus sp. （a mixture of Thiobacillus ferrooxidans and Thiobacillus thiooxidant）, soil treated with a mixture of 250 mg bentonite plus 250 mg rock phosphate/kg soil and inoculated with phosphate dissolving bacteria （PDB）, and soil treated with all the aforementioned remediative amendments. Results indicated that the vegetative parameters and yield criteria of canola plant did not exhibit any serious adverse impact under all treatments applied. The concentrations of Zn and Cu in canola oil extracted from plants grown in soil inoculated with AM and/or Thiobacillus sp. far exceeded the safe permissible levels. On the other hand, the content of both PTEs in the oil extracted from canola plants grown in soil treated with either probentonite or with mixture of all remediative amendments followed the permissible safe levels.展开更多
The paper discussed the physical and chemical properties of cooking oil vapor(COV) and its biological effects. The study showed that: (1)By ultraviolet spectrophotometry, the method to determine the concentration of C...The paper discussed the physical and chemical properties of cooking oil vapor(COV) and its biological effects. The study showed that: (1)By ultraviolet spectrophotometry, the method to determine the concentration of COV was simple, reliable and suitable; (2)At 220℃, about 60%-80% particles′ diameter of COV were less than 10 μm which referred to they are capable of reaching the deeper parts of the respiratory tract; (3)Pulmonary toxicity study of COV revealed that in acute toxicity test, there was lung tissue injury in rats and the degree increased as the concentration of oil vapor increased; subacute test in rats indicated that pulmonary injury might be the result of lipid peroxidation brought about by the activation of more general free radical system; (4)The average concentration of emitted oil vapor in the environment ranged from 0.10 to 0.20 mg/m3, the emission outlets in most restaurants were very simple or located in residential areas without any filtering device; (5)Irritative effect threshold levels of COV to volunteers and the effects on occupational exposed cooks also suggested that COV might produce harmful effects on pulmonary function in occupationally exposed personnel.展开更多
The management of peat swamp forests in Malaysia contends with two major issues: forest fires and the effects of abandoned forest-logging drainage systems or canals. Forest fire occurs during low rainfall season relat...The management of peat swamp forests in Malaysia contends with two major issues: forest fires and the effects of abandoned forest-logging drainage systems or canals. Forest fire occurs during low rainfall season related to the local people activities. The drainage networks change the hydrological function of the intact forest ecosystem. A key function of the hydrological system in the undisturbed forest is to absorb water during rainfall season, thus delaying downstream runoff and preventing flash floods. The objective of the project described here is to restore the hydrological function of peat swamp forest (PSF) at Ayer Hitam North Forest Reserve (AHNFR) in Muar, Johor, Malaysia. The oil palm plantations, especially in the southern part of the area affect the forest reserve. Water flows out of the forest reserve through the drainage system constructed for managing these plantations. In 2016 and 2017, two water block structures or check dams were constructed near the boundaries of the forest reserve to hold the water and raise the groundwater level in the forest reserve. The implementation of the check dams at the two locations has conserved the groundwater level and subsequently, about 1.2 million m<sup>3</sup> of water was saved annually from leaving the forest reserve from each of the check dam. This project is also part of the Coca-Cola Company’s sustainability commitment for water strategy with the global that is to replenish 100% of the equivalent volume of water consumed in their products and production by 2020. Replenishment is the key sustainability commitment for the Company.展开更多
文摘A 45-day experiment was carried out to evaluate the growth performance, digestive enzymes activity and biochemical response of Cirrhinus mrigala fed graded levels of oil. Three isonitrogenous purified diets （6%, 8% and 10% of oil） were formulated. A total of 108 juveniles of Cirrhinus mrigala （5.95±0.25） g were equally distributed in triplicate groups in nine plastic tanks of 100 L capacity and fed under natural light cycle. Growth performance of the fish significantly reflected the effect of inclusion levels of oil tested but the diet with 8% lipid had the best significant growth performance [% weight gain, Feed Conversion Ratio （FCR） and Specific Growth Rate （SGR）], across different experimental groups. Levels of secretion of digestive enzymes in the fish fed different experimental diets resulted in significant values of （p〈0.05） amylase and lipase, while Aspartate transaminase （AST）, Alanine transaminase （ALT）, Lactate dehydrogenase （LDH） and Malate dehydrognnase （MDH） values in the muscle and liver decreased significantly （F〈0.05） as the levels of oii in the diet increased. However, serum biochemical parameters did not record any significant difference 6o〉0.05） with the exception of the total lipid across diets. The study confirmed the inclusion effect of graded levels ofoil in juvenile Mrigal diet, but the inclusion should not be more than 8% to avert growth depression.
文摘A field experiment was carried out at Abu-Rawash sewage farm to appraise the effect of certain novel remediative amendments on the quality of oil as well as the vegetative parameters and yield criteria of canola plant used as hyperaccumulator for the remediation of sewaged soils. The treatments included fallow soil （irrigated without growing canola）, soil cultivated with canola （Brassica napus L.） and inoculated with arbuscular mycorrhiza （AM）, soil inoculation with Thiobacillus sp. （a mixture of Thiobacillus ferrooxidans and Thiobacillus thiooxidant）, soil treated with a mixture of 250 mg bentonite plus 250 mg rock phosphate/kg soil and inoculated with phosphate dissolving bacteria （PDB）, and soil treated with all the aforementioned remediative amendments. Results indicated that the vegetative parameters and yield criteria of canola plant did not exhibit any serious adverse impact under all treatments applied. The concentrations of Zn and Cu in canola oil extracted from plants grown in soil inoculated with AM and/or Thiobacillus sp. far exceeded the safe permissible levels. On the other hand, the content of both PTEs in the oil extracted from canola plants grown in soil treated with either probentonite or with mixture of all remediative amendments followed the permissible safe levels.
文摘The paper discussed the physical and chemical properties of cooking oil vapor(COV) and its biological effects. The study showed that: (1)By ultraviolet spectrophotometry, the method to determine the concentration of COV was simple, reliable and suitable; (2)At 220℃, about 60%-80% particles′ diameter of COV were less than 10 μm which referred to they are capable of reaching the deeper parts of the respiratory tract; (3)Pulmonary toxicity study of COV revealed that in acute toxicity test, there was lung tissue injury in rats and the degree increased as the concentration of oil vapor increased; subacute test in rats indicated that pulmonary injury might be the result of lipid peroxidation brought about by the activation of more general free radical system; (4)The average concentration of emitted oil vapor in the environment ranged from 0.10 to 0.20 mg/m3, the emission outlets in most restaurants were very simple or located in residential areas without any filtering device; (5)Irritative effect threshold levels of COV to volunteers and the effects on occupational exposed cooks also suggested that COV might produce harmful effects on pulmonary function in occupationally exposed personnel.
文摘The management of peat swamp forests in Malaysia contends with two major issues: forest fires and the effects of abandoned forest-logging drainage systems or canals. Forest fire occurs during low rainfall season related to the local people activities. The drainage networks change the hydrological function of the intact forest ecosystem. A key function of the hydrological system in the undisturbed forest is to absorb water during rainfall season, thus delaying downstream runoff and preventing flash floods. The objective of the project described here is to restore the hydrological function of peat swamp forest (PSF) at Ayer Hitam North Forest Reserve (AHNFR) in Muar, Johor, Malaysia. The oil palm plantations, especially in the southern part of the area affect the forest reserve. Water flows out of the forest reserve through the drainage system constructed for managing these plantations. In 2016 and 2017, two water block structures or check dams were constructed near the boundaries of the forest reserve to hold the water and raise the groundwater level in the forest reserve. The implementation of the check dams at the two locations has conserved the groundwater level and subsequently, about 1.2 million m<sup>3</sup> of water was saved annually from leaving the forest reserve from each of the check dam. This project is also part of the Coca-Cola Company’s sustainability commitment for water strategy with the global that is to replenish 100% of the equivalent volume of water consumed in their products and production by 2020. Replenishment is the key sustainability commitment for the Company.
