Consulta: subjectFacets:"Food regulation"
Registros recuperados: 3
Data/hora: 11/06/2024 12:34:35

Shell allometry and length-mass-density relationship for Mytilus edulis in an experimental food-regulated situation
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Bourget, Edwin; Frechette, Marcel.
We examined the influence of food availability and population density on the morphometry and shell length body mass relationship of Mytilus edulis. Mussels were reared in the laboratory for 22 mo at 8 different density levels in 11 chambers supplied with natural seston at 2 different concentrations. This allowed us to assess separately the effects of food availability and mussel density. The shell length/width and shell height/width ratios were affected by food, density and time. Mussels tended to be narrower (flatter) at high density and at low food level. Therefore, narrow shells could result from reduced food concentration in high density situations without implying physical interference. Shell mass was also influenced by both food and density levels,...
Tipo: Text
Palavras-chave: M N curve; Length mass density relationship; Food regulation; Shell allometry; Mussels.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-807.pdf

Tissue expression of two alpha-amylase genes in the Pacific oyster Crassostrea gigas. Effects of two different food rations
Provedor de dados: 5
Autores: Huvet, Arnaud; Daniel, Jean-yves; Quere, Claudie; Dubois, Solene; Prudence, Marie; Van Wormhoudt, A; Sellos, D; Samain, Jean-francois; Moal, Jeanne.
A semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) assay was developed to estimate tissue-specific expression of two amylase genes in five different tissues of the Pacific oyster Crassostrea gigas and the experimental effects of food level on the cellular, enzymatic and gene expression changes of the digestive gland. Results indicated that both genes were transcribed at different levels depending on tissue type. A strong preferential expression of both amylase genes was observed in the digestive gland leading to high amylase activities, in accordance with the digestive function of this organ. Traces of gene expression and activity were observed in other analysed tissues. These appeared higher in labial palps than in other...
Tipo: Text
Palavras-chave: Oyster; Gene expression; Food regulation; Digestive enzyme activity; Alpha amylase.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-394.pdf

Case-based teaching as a didactic tool for understanding food regulation
Provedor de dados: 19
Autores: Smith, Marshall; スミス, マーシャル.
With the increasing globalization of food trade and the harmonization of food standards and food safety measures, significant changes in the international and national regulatory frameworks for food have come about as well. And, although there is increasing recognition of the need to integrate and improve coordination of regulatory activities among national and international bodies, food regulation remains complex. Case-based teaching has been demonstrated as an effective educational tool for better understanding food regulation complexities. In this paper, the characteristics of a good case study are delineated, and a hypothesized case of attempting to import a soy milk product into Canada is looked at in detail. The considerations and points highlighted...
Palavras-chave: Food regulation; Case study method; FAO; FDA; Health Canada/CFIA; 食品規制; 事例研究法; 国連食糧農業機関; 米国食品医薬品局; カナダ保健省/ カナダ食品検査庁.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3537