饥饿对南方鲇仔稚鱼消化系统的形态和组织学影响
EFFECTS OF STARVATION ON MORPHOLOGY AND HISTOLOGY OF DIGESTIVE SYSTEM IN LARVAL AND JUVENILE SILURUS MERIDIONALIS CHEN
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摘要: 在实验室饲养条件下,对南方鲇仔、稚鱼进行饥饿,观察了消化系统的形态和组织学变化.仔鱼肝脏萎缩,肠管缩短、变细,失去弯曲形状.组织学结构与功能明显衰退:肝组织变得疏松,细胞缩小,仔鱼肝细胞内无脂质积累,到饥饿后期,部分细胞核仁解体;稚鱼肝细胞内贮、存的脂质迅速消失,细胞由多角形变为圆形.胰脏组织变得致密,腺泡小叶分界不清,腺泡萎缩,其内分泌物减少或消失.消化道上皮细胞的高度下降,微绒毛退化,胃腺不发达,十二指肠及小肠上皮细胞内脂质空泡消失,直肠上皮细胞内嗜酸性颗粒减少.Abstract: Morphological and histological changes of Silurus meridionalis larvae and juveniles, raised in laboratory condition, were observed during starvation. Livers of lareae were shrunken; Guts were shorter and thinner, and lost the winding shape.Signs of degeneration in histological structure and function of digestive organs were significant during starvation: Hepatic tissue becam imcompact due to hepatic cells'shrinkage and sinusoids' expansion. In larvae, no lipids were observed in hepatic cells and in latter period of starvation, parts of nucleoli of hepatic cells disintegrated.Soon after the onset of sforvation in juveniles, the multiangle hepatic cell became round and lost itS lipide saved during feeding days. Pancreatic tissue becam more compact with a continuous starvation. The boundary between acinar lobes was unclear;Acini were shrunken; Zymogen granules secreted by the acini decreased or disappeared.Aftor starvation, the height of epithelial cells of the digestive tract decreased and microvilli deteriorated. Stomach glands were undveloped; The lipid vesicles in epithelial cells of duodenum and small intestine disappeared, and the number of acidophilic particles in epithelial cells of rectum reduced.
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Keywords:
- Starvation /
- Digestive system /
- Morphology /
- Histology /
- Silurus meridionalis,Larvae and juveniles
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[1] Umeda S, Ocbiai A. On the histological structure and function of digestive organs of the fed and starved larvae of the yellowtail, Seriola quiqueradiata [J]. Jpn. J. Ichthyol.,1975, 21:213-219[2] Ehrlich K F, Blaxter J H S, Pemberton R Morphological and histological changes during the growth and starvation of herring and plaice larvae [J]. Mar. Biol.,1976, 35:105-118[3] Watanabe Y. Histological changes in the liver and intestine of freshwater goby larvae during short-term starvation [J]. Bull. Jpn. Soc. Sci. Fish., 1985, 51:707-709[4] Kj rsvik E, Van der Meeren T, Kryvi H, et al. Early development of the digestive tract of cod larvae,Gadus morhua L., during start-feeding and starvation [J]. J. Fish biol., 1991,38:1-15[5] Silva A, Miranda A. Laboratory rearing of sardine larvae, Sardina pilchardus (Walb), and early effects of starvation: A preliminary experiment [J]. Bol. Inst. Esp. Oceanogr, 1992, 8:163-174[6] Yufera M, Pascual E, Polo A, et al. Effect of starvation on the feeding ability of gilthed seabream(Sparus aurata L.) larvae at first feeding [J]. J. Exp. Mar. Biol. Ecol., 1993, 169:259-272[7] 王吉桥、毛连菊、姜静颖等.鲤、鲢、鳙、草鱼苗和鱼种饥饿致死时间的研究[J].大连水产学院学报[J],1993.8(2、3):58-65[8] Bisbal G A, Bengtson D A. Description of the starving condition in summer flounder, Paralichthys dentatus early life history stages [J]. Fish. Bull., 1995, 93:217-230[9] 芮菊生杜懋琴陈海明等.组织切片技术[M].上海:高等教育出版社.1980,92-106[10] 龙祥平.南方鲶消化系统发育的形态学、组织学及组织化学研究[D].重庆:西南师范大学,1992[11] 张波.南方鲇(Silurus meridionalis Chen)在饥饿状态下的能量学研究[D].重庆:西南师范大学,1997 Umeda S, Ocbiai A. On the histological structure and function of digestive organs of the fed and starved larvae of the yellowtail, Seriola quiqueradiata [J]. Jpn. J. Ichthyol.,1975, 21:213-219[2] Ehrlich K F, Blaxter J H S, Pemberton R Morphological and histological changes during the growth and starvation of herring and plaice larvae [J]. Mar. Biol.,1976, 35:105-118[3] Watanabe Y. Histological changes in the liver and intestine of freshwater goby larvae during short-term starvation [J]. Bull. Jpn. Soc. Sci. Fish., 1985, 51:707-709[4] Kj rsvik E, Van der Meeren T, Kryvi H, et al. Early development of the digestive tract of cod larvae,Gadus morhua L., during start-feeding and starvation [J]. J. Fish biol., 1991,38:1-15[5] Silva A, Miranda A. Laboratory rearing of sardine larvae, Sardina pilchardus (Walb), and early effects of starvation: A preliminary experiment [J]. Bol. Inst. Esp. Oceanogr, 1992, 8:163-174[6] Yufera M, Pascual E, Polo A, et al. Effect of starvation on the feeding ability of gilthed seabream(Sparus aurata L.) larvae at first feeding [J]. J. Exp. Mar. Biol. Ecol., 1993, 169:259-272[7] 王吉桥、毛连菊、姜静颖等.鲤、鲢、鳙、草鱼苗和鱼种饥饿致死时间的研究[J].大连水产学院学报[J],1993.8(2、3):58-65[8] Bisbal G A, Bengtson D A. Description of the starving condition in summer flounder, Paralichthys dentatus early life history stages [J]. Fish. Bull., 1995, 93:217-230[9] 芮菊生杜懋琴陈海明等.组织切片技术[M].上海:高等教育出版社.1980,92-106[10] 龙祥平.南方鲶消化系统发育的形态学、组织学及组织化学研究[D].重庆:西南师范大学,1992[11] 张波.南方鲇(Silurus meridionalis Chen)在饥饿状态下的能量学研究[D].重庆:西南师范大学,1997
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