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英国都铎时期的“食鱼日”政策评述 被引量:1
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作者 林琳 《重庆科技学院学报(社会科学版)》 2008年第5期41-42,共2页
"食鱼日"是英国都铎王朝一个比较特别的政策,英格兰政府希望利用这一政策推动英国渔业的发展,并以渔业支持英国的海军。从最终结果来看,"食鱼日"并不是发展渔业和海军的最好方式,该政策取得的效果也与统治者期望的... "食鱼日"是英国都铎王朝一个比较特别的政策,英格兰政府希望利用这一政策推动英国渔业的发展,并以渔业支持英国的海军。从最终结果来看,"食鱼日"并不是发展渔业和海军的最好方式,该政策取得的效果也与统治者期望的相去甚远.但它反映了英格兰发展海军的强烈愿望和为此做出的积极努力。 展开更多
关键词 英国 食鱼日 渔业 海军
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Biological Value of Maggot Meal as a Replacement for Fishmeal in the Diets of African Giant Snail (Achatina spp.) Hatchings
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作者 Foleng Ndofor Harriet Mbunwen Anselm Ego Onyimonyi +1 位作者 Cornelius Chijioke Nwoga Godlove AmbeMusongong 《Journal of Life Sciences》 2011年第10期821-825,共5页
Poverty, inadequate dietary intake, and diseases are the major causes of malnutrition in Nigeria. Averagely, Nigerians consume about 5.5 g of animal protein per day which is low compared to the minimum of 30 g per per... Poverty, inadequate dietary intake, and diseases are the major causes of malnutrition in Nigeria. Averagely, Nigerians consume about 5.5 g of animal protein per day which is low compared to the minimum of 30 g per person per day as recommended by Food and Agricultural Organization. The concept of household food security ensures that adequate food can be obtained, either through home production or purchases. Snail production is one of the means through which these ills could be eliminated. Protein deficiency that is endemic in developing nations can be reduced through the domestication of micro-livestock like snail which is rich in protein and iron. Sixty Achatina achatina hatchlings were used in a 90 days feeding trial. The hatchlings were assigned to four treatments in a Completely Randomized Design with three replicates each. Maggot meal was incorporated at the levels of 0.6, 1.4, and 2 kg per 100 kg of feed in treatments 2, 3 and 4, respectively. Treatment 1 had no maggot meal and served as the control. Results showed that snail weight, shell length and shell width increased with increase in the levels of maggot meal. Hatchlings on T3 and T4 had statistically similar values (P 〉 0.01) which were significantly (P 〈 0.01) higher than values obtained for hatchlings on T1 and T2 .Weight gain and feed conversion values of hatchlings on T3 and T4 were also significantly higher than values observed for hatchlings on T1 and T2. Therefore, maggot meal could effectively replace fishmeal in the diet of African giant snail hatchlings. 展开更多
关键词 African giant snail maggot meal growth parameters hatchlings.
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