Betekenis van:
perch
perch
Zelfstandig naamwoord
- spiny-finned freshwater food and game fishes
Hyperoniemen
Hyponiemen
Voorbeeldzinnen
- Sand perch
- European perch
- Pike-perch
- Of Nile perch (Lates niloticus)
- Minimum length of perch per bird (cm)
- EHN Redfin perch (Perca fluviatilis), rainbow trout (Oncorhynchus mykiss)
- Redfin perch (Perca fluviatilis), rainbow trout (Oncorhynchus mykiss), Macquarie perch (Macquaria australasica), silver perch (Bidyanus bidyanus), mountain galaxias (Galaxias olidus), sheatfish (Silurus glanis), catfish (Ictalurus melas) and mosquito fish (Gambusa affinis) and other species belonging to the family Poeciliidae
- All birds should be able to perch at the same time and every adult bird should be allowed 15 cm of perch at each level.
- Epizootic haematopoietic necrosis Rainbow trout (Oncorhynchus mykiss) and redfin perch (Perca fluviatilis)
- Species concerned: Carp family (Cyprinidae) and other associated species in the context of polyculture, including perch, pike, catfish, coregonids, sturgeon.
- As a result, enclosure height should be adequate to allow the animal to perch at a sufficiently high level for it to feel secure.
- Fowl should always be provided with the opportunity to perch, peck appropriate substrates, forage and dust-bathe from one day old.
- Perch heights should be adjusted in response to the birds' behaviour by seeing how easily birds can get on and off perches and move between them.
- As height is a critical feature of the enclosure, all non-human primates should be able to climb, jump and occupy a high perch.
- enclosures should be of adequate height to allow the animal to flee vertically and sit on a perch or a shelf, without its tail contacting the floor,