Results 21 to 30 of about 21,199 (260)
Assessment of gonadal maturation by evaluation of spermaturia. [PDF]
Archives of Disease in Childhood, 1990 The urinary excretion of spermatozoa (spermaturia) reflects the achievement of exocrine testis function during male puberty. In order to test the sensitivity and practicability of repetitive urine sampling, we analysed the sediments of 1160 first morning urine specimens obtained on successive days from 129 healthy schoolboys aged 10.1 to 17.8 years for
F, Schaefer +4 more
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Biology of Sex Differences, 2022 Highlights Mulinia lateralis reaches sexual maturation within 2 months, facilitating comprehensive studies of gonadal development. A combined morphological and molecular analysis reveals the timing of gonad formation, sex differentiation and ...
Yajuan Li +11 more
doaj +1 more source
Journal of Animal Reproduction and Biotechnology, 2020 Changes of gonadal morphology and mRNA expression patterns of vitellogenin were investigated in Siberian sturgeon Acipenser baerii (Chondrostei) during its early gonadal maturation period.
Chulhong Park +4 more
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Metamorphosis and Gonad Maturation in the Horn FlyHaematobia irritans [PDF]
Journal of Insect Science, 2011 The bloodsucking horn fly, Haematobia irritans (L.) (Diptera: Muscidae), is one of the most damaging pests of pasture cattle in many areas of the world. Both male and female imagoes spend their adult stage on the host, while immature stages develop in dung. Our goal was to determine if the progress of H. irritans gonad maturation can be correlated with
Basso, A. L. +5 more
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Jurnal Ilmiah Perikanan dan Kelautan, 2012 Abalone is one kind of shellfish fisheries of the world has become a commodity which is currently experiencing increased demand, especially from international markets.
Sudarno Sudarno +2 more
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A review on ghrelin and fish reproduction
Reproduction and Breeding, 2021 Ghrelin is a multifunctional peptide hormone which dominantly secreted in stomach and intestine. Ghrelin involves in growth control, food intake, energy balance, and reproductive process.
Huan Zhong, Yi Hu, Fan Yu
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Cyclic changes in gonadal maturation and histological observations of threatened freshwater catfish "narikeliru" Mystus montanus (Jerdon, 1849) [PDF]
Acta Ichthyologica et Piscatoria, 2004 Background. Usage of biosciences in increasing fish production needs to have a proper understanding and knowledge of endocrine physiology of fish reproduction.
A.J. Arockiaraj +3 more
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Studies on Gonad Maturity in Some Marine Invertebrates-II
NIPPON SUISAN GAKKAISHI, 1971 The present paper deals with histological observations of the reproductive organs of the lined shore crab, Pachygrapsus crassipes, (Grapsidae, Brachyura), known as a common crab which widely inhabits the rocky beaches of the Japanese Islands. The materials used were collected from the coast of Niigata City, facing the Japan Sea, and the period of ...
Akira CHIBA, Yoshiharu HONMA
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EFECT OF LASERPUNCTURE INDUCTION TO INCREASE GSI AND HSI MALE CATFISH BROODSTOCKS
JFMR-Journal of Fisheries and Marine Research, 2020 Induction of laser puncture in the male catfish broodstock has a positive influence by increasing reproductive activity which is very helpful for the process of gonadal maturation.
Dyah Hariani +3 more
doaj +1 more source
Differential leucokocyte counts in ''dourado'', Salminus maxillosus Valenciennes, 1840, from the Mogi-Guaçu River, Pirassununga, SP [PDF]
Brazilian Journal of Biology, 2003 From August, 1996 to December, 1997, 293 of ''dourado'' specimens, Salminus maxillosus (Valencienes, 1840), of various sizes, were caught in Mogi-Guaçu River, Emas Falls, for hematologic studies.
M. J. T. Ranzani-Paiva +4 more
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