Captive care and breeding of Pachyhynobius shangchengensis

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Just published:

Frank PASMANS, Geert P. J. JANSSENS, Max SPARREBOOM, Jianping JIANG and Kanto NISHIKAWA,, 2012. Reproduction, Development, and Growth Response to Captive Diets in the Shangcheng Stout Salamander, Pachyhynobius shangchengensis (Amphibia, Urodela, Hynobiidae). Asian Herpetological Research 3(3): 192-197

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Abstract [FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]The Shangcheng stout salamander ([/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]Pachyhynobius shangchengensis[/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]) is a poorly known stream dwelling hynobiid salamander from China. We studied the reproduction, development and growth response of the salamander to different diets in captivity. Two females each produced two unique, striated egg sacs, with each containing 18 and 20, and 22 and 32 white eggs with an average diameter of 3.3 mm. Hatchlings (n = 27) had front- and hind-limb buds [/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]with interdigit membranes and a large yolk sac, and developed cornified finger and toe tips during further development. [/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]Metamorphosis occurred between d 441 and d 454 after hatching at an average total length of 94.8 mm (n = 21). These [/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]reproductive and developmental traits fit in well with the ancestral state reconstruction in hynobiids. If corrected for [/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]dry mass, feed conversion ratios obtained by feeding bloodworms (Chironomidae) to [/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]P. shangchengensis [/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]larvae and mealworms ([/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]Tenebrio molitor[/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]) to postmetamorphs, were very low (0.33 and 0.34 respectively), equaling a very high [/FONT][/FONT][FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]mass conversion efficiency.[/FONT][/FONT]
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