نوع مقاله : فیزیولوژی (جانوری)
نویسندگان
1 گروه شیلات، دانشکده کشاورزی و منابع طبیعی، دانشگاه خلیج فارس، بوشهر
2 مرکزمطالعات و پژوهش های دانشگاه خلیج فارس، بوشهر
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
This study was done to investigate the macroscopic and microscopic structure of the ovary of
Siah mahi,Capoeta capoeta intermedia during sexual maturation cycle from November 2012 and October 2013. For this purpose, 330 C.c.intermediawere captured from Shapour River (Bushehr province) and transferred to the laboratory. After biometry, gonads were removed and weighted. Gonad samples fixed in 10% formalin and after providing tissue sections, stained with H&E and studied by light microscopy. The weight of female and male calculated 93.4 ± 38 g and 87.24± 25.5, respectively. Results showed that average total length females and males is 19.83±2.32 and 19.85±2 g cm, respectively. Overall female-male (F-M) sex ratio was 1:1.66 that was significantly differences between the sexes (P<0.05). Egg diameter from 406.6 micron in stage 2 increased up to 2112.9 micron in stage 5. Cyclic changes of ovarian maturation were divided into six stages histologically. The highest frequency of 4 and 5 maturity stages observed from February to June.
کلیدواژهها [English]
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