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| | **a '''buccal cavity''' | | **a '''buccal cavity''' |
| | **'''teeth''' or '''cutting plates''' | | **'''teeth''' or '''cutting plates''' |
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| | === Feeding Habits === | | === Feeding Habits === |
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| | *Others suck a plug of mucosa into the buccal cavity (plug feeders), leaving a circular ulcer | | *Others suck a plug of mucosa into the buccal cavity (plug feeders), leaving a circular ulcer |
| | *Yet others bury their heads deep into the mucosa and suck blood | | *Yet others bury their heads deep into the mucosa and suck blood |
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| | === General Life-Cycle === | | === General Life-Cycle === |
| | *The basic life-cycle is very simple: | | *The basic life-cycle is very simple: |
| − | | + | **egg → L1 → L2 → L3 → L4 → adult |
| − | egg → L1 → L2 → L3 → L4 → adult | |
| − | | |
| | *With a moult in between each larval stage | | *With a moult in between each larval stage |
| | *But there are many variations on this theme | | *But there are many variations on this theme |
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| | === Nematode Eggs === | | === Nematode Eggs === |
| − | These vary greatly in appearance and are very useful for diagnosis as they can often be detected and counted in faecal samples | + | *These vary greatly in appearance and are very useful for diagnosis as they can often be detected and counted in faecal samples |
| − | | + | *NOTE: we use the typical '''strongyle''' egg to provide us with a yard-stick for comparing sizes. A "large egg", for example, means larger than a strongyle egg. A typical strongyle egg is approximately '''80µm''' long |
| − | NOTE: we use the typical '''strongyle''' egg to provide us with a yard-stick for comparing sizes. A "large egg", for example, means larger than a strongyle egg. A typical strongyle egg is approximately '''80µm''' long | |
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| | | | |
| | == Nematode Superfamilies == | | == Nematode Superfamilies == |
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| | NOTE: the Trichostrongyloidea, Strongyloidea and hookworms are very closely related, and are often collectively known as '''"the strongyles"'''. Typically, they produce almost identical eggs, called '''"typical strongyle eggs"'''. | | NOTE: the Trichostrongyloidea, Strongyloidea and hookworms are very closely related, and are often collectively known as '''"the strongyles"'''. Typically, they produce almost identical eggs, called '''"typical strongyle eggs"'''. |
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| | | | |
| | '''NON-BURSATE''' | | '''NON-BURSATE''' |