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  • 01 SEAFDEC/AQD Publications
  • Conference Proceedings
  • Breeding and Seed Production of Cultured Finfishes in the Philippines
  • ดูรายการ
  •   SAIR บ้าน
  • 01 SEAFDEC/AQD Publications
  • Conference Proceedings
  • Breeding and Seed Production of Cultured Finfishes in the Philippines
  • ดูรายการ
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Influence of LHRHa and methyltestosterone on milt production of sea bass Lates calcarifer (Bloch)

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bspcfp_p108b.pdf (342.3Kb) Open Access
Downloads: 1,459
วันที่
1996
ผู้เขียน
Hilomen-Garcia, G. V.
Baldevarona, R. B.
Lacanilao, F. J.
Page views
3,781
ASFA keyword
hydration ASFA
catadromous fishes ASFA
sexual reproduction ASFA
sperm ASFA
seed production ASFA
hormones ASFA
sex hormones ASFA
marine fish ASFA
body weight ASFA
gonads ASFA
aquaculture techniques ASFA
fish culture ASFA
roes ASFA
AGROVOC keyword
Dicentrarchus labrax AGROVOC
Lates calcarifer AGROVOC
Giant perch
Philippines AGROVOC
Taxonomic term
Lates calcarifer GBIF
เมตาดาต้า
แสดงระเบียนรายการเต็ม
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นามธรรม
Milt volume, sperm density, and number of spermatozoa were determined to quantify milt production of mature sea bass after a single injection of LHRHa [(D-Ala6,Pro9-N-ethylamiide)LHRH] in saline solution and 17α-methyltestosterone in corn oil (MT). Two measures of sperm density, sperm count and spermatocrit, were highly correlated (r=0.85). Compared with control, milt volume and the number of spermatozoa collected increased but sperm count decreased (24% at 24 h) after a LHRHa (20 µg/kg body weight treatment, suggesting a stimulation of spermatozoa production and not merely milt dilution. Further milt dilution (44%) was induced by 80 µg/kg LHRHa (LHRHa80) at 12 h post-treatment but not by 200 µg/kg MT (MT200) alone. A milt dilution of only 27% at 12 h after simultaneous injections of LHRHa80 and MT200 may indicate some inhibitory effect of MT on the efficiency of LHRHa. These results demonstrate that the stimulation of milt production by LHRHa involves testicular hydration resulting in milt dilution.
Description
Abstract only.
URI
http://hdl.handle.net/10862/566
การอ้างอิง
Hilomen-Garcia, G. V., Baldevarona, R. B., & Lacanilao, F. J. (1996). Influence of LHRHa and methyltestosterone on milt production of sea bass Lates calcarifer (Bloch). In C. L. Marte, G. F. Quinitio, & A. C. Emata (Eds.), Proceedings of the Seminar-Workshop on Breeding and Seed Production of Cultured Finfishes in the Philippines, Tigbauan, Iloilo, Philippines, 4-5 May 1993 (p. 108). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.
Type
Conference paper
ISBN
9718511326
คอลเลกชัน
  • Breeding and Seed Production of Cultured Finfishes in the Philippines [31]

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