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faecal matter
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  faecal matter
Both solid (mainly in the form of uneaten feeds and faecal matter) and dissolved byproducts of the production cycle enter the limnetic environment untreated.
      
The feasibility of nearly-complete conversion of lignocellulosic waste (70% food crops, 20% faecal matter and 10% green algae) into biogas was investigated in the context of a life support project.
      
The amount of faecal matter produced in an hour was obtaineb by subtraction (C-A).
      
In the gut and fresh faecal matter of Glomeris hexasticha a unique taxonomically hardly identifiable aerobic, Gram-positive nocardioform actinomycete can form sparse populations.
      
This suggestion is supported by: (1) The small quantity of food particles (other than krill faecal matter) available in the water column (>amp;lt; 0.3 μg chl.-al-1).
      
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Acrocercps cramerella Snell.is one of the most serious fruit borers of Litchi in China. The larvae have been observed to bore into the seeds,shoots and flower Panicles of Litchi causing fruit drop. When the fruit approached ripening, the pest bore the stalk end of the seed only. The faecal matter left on the stalkend not only affected the yield, but also the fruit quality.The experiment was carried out from 1982-1984.The larvae of this borer hatcned from the bottom of egg shells and then bored directly...

Acrocercps cramerella Snell.is one of the most serious fruit borers of Litchi in China. The larvae have been observed to bore into the seeds,shoots and flower Panicles of Litchi causing fruit drop. When the fruit approached ripening, the pest bore the stalk end of the seed only. The faecal matter left on the stalkend not only affected the yield, but also the fruit quality.The experiment was carried out from 1982-1984.The larvae of this borer hatcned from the bottom of egg shells and then bored directly into the seed of the fruit feeding on the cotyledon of the seed embryo until maturity. This occurred only at the time after the seed cotyledons had changed from a fluid to a solid stage. It was found that the borer was a stationary parasite never transfering from one fruit to another fruit. Growers usually sprayed with insecticide after fruit set to control this borer, but is ineffective.Curve was plotted showing the borer population with a maximum rise and a minimun drop abruptly. This correlates closely with the Litchi fruit developing season.The pupae of the borer which could feed on the cotyledon were larger and heavier than that had only summer and fall flush to feed on and with high % of adult reproductivity.Control measures are suggested as follows. The borer control forecast should be based on the Litchi fruit development, at the stage when the cotyledon changes fluid to solid state, or before the climax of fruit drop, i. e. before the larvae enter the fruit. Spraying programme should be done just after papae eclosion and before the oviposition period.The insecticide Dimehypo mixed with Dipterex was found ieffective in controlling the borers. When spraying was done in time the rate of borer infestation was kept down to about 10%. Whereas in 1982 when there was no forecast and spraying was done not in time, the infestation rate came up to 80% and above.

爻纹细蛾以幼虫钻蛀果实,导致落果。果实接近成熟则仅在种柄蛀食,遗留虫粪于果蒂内,影响荔枝产量和质量。 1982~1984年,在研究其生物学基础上,明确了其幼虫孵化多自卵壳底面直接蛀入果核,取食种腔内的子叶,并且还要在种腔内含物从液态变为固态后才开始入侵,又没有转果习性,这是过去产区喷药多次而保果效果不大的原因。 爻纹细蛾种群数量年中有极为明显的陡升陡降现象,与荔枝品种果实发育密切相关。幼虫取食果核子叶者,蛹大而重,成虫繁殖力强,取食夏秋嫩梢幼叶者,蛹小而轻,成虫繁殖力弱,差异极为显著。 根据荔枝不同品种果实发育进度先后开展预测预报,使用药剂杀虫双混合敌百虫,消灭成虫于产卵前,兼治荔枝蝽蟓,取得显著防治效果。1983、1984两年来虫果率均控制在10%左右,对照为25.6~94%。但1982年没有测报指导,虽多次喷药,虫果率除小核品种外,普遍在80%以上,中山市多宝农场的元技受害率甚至达100%,虫果比为3:1。

The fat-soluble pigments from faecal matter of the silkworm were isolated by a modified method of the thin layer chromatograph. This process showed 8 chromatographic bands. These chromatogranhic components were scanned with Beckman DU-7 chromatograph. The result shows that the excrement of the silkworm larvae contains such pigments as carotene, chlorophyll a and b, chlorophyll derivatives and carotenoid derivatives.

采用改进的吸附层析法分离蚕沙申的脂溶性色素,层析结果出现八种物质的色谱带。用Beckman DU—7型自动扫描分光光度计对这八种物质分别进行了分析鉴定,结果表明:蚕沙中含有胡萝卜素、叶绿素a、叶绿素b、叶绿素衍生物和类胡萝卜素衍生物等色素。

 
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