poultry nutrition Dotaz Zobrazit nápovědu
- MeSH
- fyziologie výživy dětí MeSH
- maso MeSH
- předškolní dítě MeSH
- školky MeSH
- výživa - přehledy MeSH
- Check Tag
- předškolní dítě MeSH
Nutričně vyvážená strava na základě dostupných důkazů o zdravém stravování: ne uzeniny, malé množství červeného masa (1× týdně), střední množství živočišné stravy (kuřata, ryby a mléko) a velké množství rostlinné stravy (ovoce, zelenina, luštěniny a ořechy).
Nutritionally balanced diet patterns in line with available evidence on healthy eating: no processed meat, small amounts of red meat (one serving per week), moderate amounts of other animal-source foods (poultry, fish, and dairy), and generous amounts of plantbased foods (fruits, vegetables, legumes, and nuts).
- MeSH
- enterální výživa MeSH
- lidé MeSH
- primární prevence MeSH
- strava, jídlo, výživa MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
Chitin, a polymer of N-acetyl-D-glucosamine (GlcNAc), functions as a major structural component in crustaceans, insects and fungi and is the second most abundant polysaccharide in the nature. Although these chitin-containing organisms have been suggested as novel animal feed resources, chitin has long been considered as indigestible fibers in the animal body. Recently, we reported that acidic chitinase (Chia) is a protease-resistant major glycosidase in mouse gastrointestinal tract (GIT) and that it digests chitin in the mouse stomach. However, the physiological role of Chia in other animals including poultry remains unknown. Here, we report that Chia can function as a digestive enzyme that breaks down chitin-containing organisms in chicken GIT. Chia mRNA is predominantly expressed in the glandular stomach tissue in normal chicken. We also show that chicken Chia has a robust chitinolytic activity at pH 2.0 and is highly resistant to proteolysis by pepsin and trypsin/chymotrypsin under conditions mimicking GIT. Chia degraded shells of mealworm larvae in the presence of digestive proteases and produced (GlcNAc)2. Thus, functional similarity of chicken Chia with the mouse enzyme suggests that chitin-containing organisms can be used for alternative poultry diets not only as whole edible resources but also as enhancers of their nutritional value.
- MeSH
- chitin metabolismus MeSH
- chitinasy metabolismus MeSH
- koncentrace vodíkových iontů MeSH
- kur domácí metabolismus MeSH
- proteasy MeSH
- střeva enzymologie MeSH
- Tenebrio chemie MeSH
- trávení * MeSH
- žaludek enzymologie MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- MeSH
- drůbež MeSH
- drůbeží výrobky MeSH
- fyziologie výživy MeSH
- lidé MeSH
- Check Tag
- lidé MeSH
