scholarly journals Anatomy and Histology of Reproductive Organ of Male Guinea Pig As a Source of Learning

2017 ◽  
Vol 1 ◽  
pp. 9-18
Author(s):  
Elvira Mega Androma ◽  
Laela Umi Khasanah
Keyword(s):  
Guinea Pig ◽  
Prostate Gland ◽  
Reproductive Organs ◽  
Reproductive Organ ◽  
Student Response ◽  
Histological Structure ◽  
Accessory Glands ◽  
The Subject ◽  
Male Reproductive Organs ◽  
Readability Test

This study were aim to (1) describe the anatomical and histological structures of testicular organ, epididymis, vas deferens, accessory glands, and penis in guinea pig (2) develop learning media in the form of histological slides as well as anatomy atlas of male reproductive organs (3) examine the atlas of reproductive organs of male guinea pig as a source of learning. Slide were made using paraffin method with HE staining. The study revealed histological structure of the five guinea pig (Cavia porcellus) accessory glands, namely ampullary glands, seminal vesicles, prostate gland, bulbourethral gland, and preputial gland. In addition, guinea pig penis had a baculum on its base. The results of the student response test showed very good category with the percentage of 90,55%. The readability test had very good value from the subject expert (95,71%), media expert (81,66%), peer reviewer (88,07%) and biology teacher (81,51%). Overall, the atlas of the 'Anatomy of Male Reproductive Organs of Guinea Pig' had excellent quality and deserves to be used as a learning resource.

scholarly journals Anatomical and Histological Structure of Reproductive Organs in Male Flying Squirrel Hylopetes Lepidus (Horsfield, 1822)

2019 ◽  
Vol 2 ◽  
pp. 31-36
Author(s):  
Shanghnesy Jovita Nirvana ◽  
Muhammad Ja’far Luthfi ◽  
Erna Ekasari ◽  
Lailatul Maghfiroh
Keyword(s):  
Prostate Gland ◽  
Reproductive Organs ◽  
Body Cavity ◽  
The Body ◽  
Histological Structure ◽  
Flying Squirrel ◽  
Histological Characteristics ◽  
Male Reproductive Organs ◽  
The Right ◽  
Short Diameter

Flying squirrel (Hylopetes lepidus) is an Eutherial mamal (placental mammal), belong to the order Rodentia and belong to the family Sciuridae. Hylopetes lepidus had gray cheek as its unique characteristics. The reproductive organs are the key to success in maintaining the new descendants. Male reproductive organs will produce the male sex cells or spermatozoa. The purpose of the research is to examine the anatomical structure, morphometry, histomorphometry, and histological structure of male reproductive organs (penis, testicle, vas deferens, bulbouretralis gland, prostate and seminal vesicles) of Hylopetes lepidus. The method used in examining histological characteristics is Hematoxyin–Eosin staining method. The histological structure of reproductive organs were observed using optilab microscope. The results of the study showed that the adult male flying squirrel weighed 104.28 ± 0.64 gram. Anatomically, it has oval white reddist testicle. The testicle is located side out of the body cavity in the scrotum. Morphometric observation testicular showed that the right testes has volume 0.35 ± 0.07 ml, and the left has volume 0.35 ± 0.07 ml, weight of the right testicular 0.19   ± 0.01 gram, weight of the left testicular 0.18 ± 0.01 gram, diameter of the right testicular 6.35 ± 0.21 mm, diameter of the left testicular 6.35 0.21 mm, short diameter of the right testicular 3.45 ± 0.21 mm, and short diameter of the left testicular 3.45 ± 0.21 mm. The diameter of tubulus seminiferus 261,4 ± 0.14 μm. The conclusion of this study compared to rodentia other testicular Hylopetes lepidus has a unique testicular bound by the connective tissue in the scrotum so that testicular included in class permanent descending testicular. The rhombus of the prostate gland are blunt, while histologically the sertoli cells in the seminiferus tubule shaped elongated, while in morphometry penis Hylopetes lepidus relatively longer than Mus musculus.

scholarly journals Anatomy of the Male Reproductive Organ of Water Monitor Lizard, Varanus salvator bivittatus (Reptil: Varanidae)

2019 ◽  
Author(s):  
mahfud
Keyword(s):  
Reproductive Organs ◽  
Reproductive Organ ◽  
Male Reproductive Organ ◽  
Monitor Lizard ◽  
Varanus Salvator ◽  
Biological Aspects ◽  
Male Reproductive Organs ◽  
Monitor Lizards ◽  
Almost All ◽  
Asian Water

One of the majority species of Varanidae is Varanus salvator or which commonly known as water monitor lizards (water monitor) or Asian water monitor lizard. This species is the most widely spread out of the all varanids. In Indonesia, V. salvator are distributed in almost all islands, from Sumatra, Java, Sulawesi, Maluku and Flores. Subspecies V. s. bivittatus was found only in Java, Bali and South East Islands [1]. The information on reproductive biological aspects of the V. s. bivittatus, especially the male reproductive organs is limited. Therefore, the study was aim to explore the male reproductive organs system of V. s. bivittatus that focused on macroscopic evaluation. Two adult male lizards with 45.60 cm SVL from Bogor area were used in this study. The lizard were anesthetized and exanguinated to sacrifice and fixed in 4 % paraformaldehyde through perfusion then followed by visceral observation and morphometric carefully measurement. All the observation finding and collected data were analyzed descriptively and presented in the form of tables and figures. Morphometric data were tabulated in the form of the average (mean) ± standard deviation (SD). Male reproductive organs of the V. s. bivittatus were generally similar to other reptiles such as snakes and lizards, with characteristics a pair of hemipenes. Epididymis was not formed of head, body and radix segment. The deferent duct is a small, straight and short duct which connected the epididymis to cloaca.

scholarly journals Anatomy and Histology of Testes of Male Buffalo Egrets (Bubulcus Ibis)

2019 ◽  
Vol 2 ◽  
pp. 107-109
Author(s):  
Lita Ayu Umartani ◽  
Aretasani Rahim ◽  
Halimah Asy Syahidah
Keyword(s):  
Descriptive Analysis ◽  
Reproductive Organs ◽  
Seminiferous Tubules ◽  
Histological Structure ◽  
Bubulcus Ibis ◽  
Analysis Technique ◽  
Male Sex ◽  
Male Reproductive Organs ◽  
Hematoxylin Eosin ◽  
Head Neck

The buffalo egret (Bubulcus ibis) belongs to the Ciconiiformes order, family Ardeidae. The buffalo egret (Bubulcus ibis) is the smallest egret (about 50 cm). Its body is slimmer than Blekoksawah (Ardeolaspeciosa), although not as large as egrets. All feathers are white, but during the mating season the feathers on the head, neck, back and chest are yellow. Reproductive organs are the ke y to success in maintaining new offspring. Male reproductive organs will produce male sex cells or living spermatozoa. It is important to do research on anatomy and histology to determine the maturity of the reproductive organs of the bird. The purpose of this study was to determine the anatomical and histological structure of male reproductive organs of buffalo egrets (Bubulcus ibis). The method used for histology is the paraffin method with Hematoxylin-Eosin staining. The data analysis technique uses descriptive analysis for histological preparations. Anatomical observations include the color, shape and location of the reproductive organs, while histological observations of the structure of the reproductive organs using a microscope. The results of the study were anatomically pale-colored testicle. The location of the testicles is on ventral from the most cranial lobe. While the histological structure of the testis of the Buffalo Egret (Bubulcus ibis) consisted of spermatozoa, lumen, stereosilia, ephitelium of eididymis and seminiferous tubules.

scholarly journals Anatomi Organ Reproduksi Jantan Biawak Air Asia, Varanus salvator (Reptil: Varanidae)

2016 ◽  
Vol 3 (1) ◽  
pp. 1-7
Author(s):  
. Mahfud ◽  
Chairun Nisa’ ◽  
Adi Winarto
Keyword(s):  
Anatomical Study ◽  
Tissue Perfusion ◽  
Reproductive Organs ◽  
Reproductive Organ ◽  
Retractor Muscle ◽  
Ductus Deferens ◽  
Dorsal Wall ◽  
Male Reproductive Organ ◽  
Varanus Salvator ◽  
Male Reproductive Organs

Indonesia merupakan negara dengan tingkat eksploitasi biawak V. salvator terbesar di dunia yang sebagian besar untuk melayani permintaan perdagangan kulit. Tingginya permintaan kulit biawak di Indonesia mengkhawatirkan menyebabkan turunnya populasi satwa tersebut. Penelitian ini bertujuan untuk mempelajari anatomi organ reproduksi jantan biawak air asia (Varanus salvator) (Reptil: Varanidae). Dua ekor biawak jantan dewasa digunakan dalam penelitian ini. Hewan dianestesi, dilakukan exanguinasi, dan difiksasi dengan larutan paraformaldehida 4% secara perfusi. Pengamatan dilakukan terhadap situs viscerum, morfologi, dan morfometri organ reproduksi mulai testis sampai hemipenis. Secara makroskopis, organ reproduksi jantan V. salvator terdiri atas testis, ductus epididymidis, ductus deferens dan hemipenis yang masing-masing berjumlah sepasang. Posisi testis menggantung di dinding dorsal coelom melalui mesorchium. Dari bagian dorsal testis terdapat ductus epididymidis yang panjangsampai di ujung kaudal ginjal. Ductus deferens, berupa saluran kecil, lurus dan berakhir di ujung hemipenis yang terletak di dalam pangkal ekor. Pada bagian kranial hemipenis ditutupi oleh papillae berbentuk konikal. Di kaudal dari hemipenis ditemukan otot retraktor yang memanjang ke arah ekor, dan diduga berperan menarik hemipenis ke dalam setelah kopulasi. Organ reproduksi jantan biawak secara umum mirip dengan reptilia lain khususnya ular dan kadal, dengan karakteristik adanya sepasang hemipenis.Kata kunci: Varanidae, Varanus salvator, organ reproduksi jantan, hemipenis, otot retraktor. (Anatomy of The Male Reproductive Organ of Water Monitor, Varanus salvator (Reptil: Varanidae))Indonesia is a country with high levels of exploitation of Varanus salvator that mainly serve the demand of leather trade. The high demand of lizard leather in Indonesian was alarming, cause a decline population of these animals. To improve our understanding on reproduction organs of the animal, we conduct this anatomical study. The study was used two adult male lizards. The animals were anesthetized, exanguinated and fixated in 4% paraformaldehyde by tissue perfusion method. Observations were performed to the visceral site, morphological and morphometrical of the male reproductive organs, from testes to hemipenes. Macroscopically, male reproductive organs of V. salvator were a pair of testes, epididymidis ducts, deferens ducts and hemipenes. The testis attached to dorsal wall of the coelom and fixed by the mesorchium. The epididymidis duct was long tubes that located in the dorsal of testes, winding up at the caudal end of the kidney. The deferens duct was a small duct, running straight and last at the end of each hemipenis, located at the base of the tail. The cranial part of each hemipenis was covered by conical shaped papillae. Furthermore, at the caudal of each hemipenis was found the retractor muscle that extends toward the tail, and is thought to contribute to the retracting hemipenis after copulation. The male reproductive organs of V. salvator are generally similar to the other reptiles, especially snakes and lizards, with peculiar a pair of hemipenes.Keywords: Varanidae, Varanus salvator, male reproductive organs, hemipenes, retractor muscles.

Production of soma and gonad in maturing female Illex argentinus (Mollusca: Cephalopoda)

1992 ◽  
Vol 72 (2) ◽  
pp. 281-291 ◽  
Author(s):  
E.M.C. Hatfield ◽  
P.G. Rodhouse ◽  
D.L. Barber
Keyword(s):  
Somatic Growth ◽  
Reproductive Organs ◽  
Reproductive Organ ◽  
Mantle Length ◽  
Whole Body ◽  
Relative Mass ◽  
Histological Structure ◽  
Organ Systems ◽  
Illex Argentinus ◽  
Nutrient Resources

Samples of female lllex argentinus were taken from the catch of a Japanese squid jigging vessel on the Patagonian Shelf during March 1986. Morphometrics of the somatic and reproductive organ systems and the histological structure of the mantle in relation to maturation were examined. The data suggest that growth and maturation occur simultaneously during most of the time that lllex argentinus females are on the feeding grounds. In a squid of a ‘standard’ mantle length the whole body mass increases relative to mantle length during maturation and growth of the reproductive organs. This is accompanied by a small but significant decrease in the relative mass of the mantle, head and viscera whilst the mass of the digestive gland remains constant. Although mantle mass of a ‘standard’ female squid decreases relative to mantle length with maturity this is not associated with degeneration of the mantle muscles. Energy and nutrient resources for maturation are apparently derived from the squid's food, not from reserves, and during the course of maturation there is an increasing shift of emphasis from somatic growth to production of gonad and accessory reproductive organs.

scholarly journals Histological Development of Male Reproductive Organs in Microminipigs

2016 ◽  
Vol 44 (8) ◽  
pp. 1105-1122 ◽  
Author(s):  
Akihisa Kangawa ◽  
Masayoshi Otake ◽  
Satoko Enya ◽  
Toshinori Yoshida ◽  
Masatoshi Shibata
Keyword(s):  
Giant Cell ◽  
Sexual Maturity ◽  
Multinucleated Giant Cell ◽  
Reproductive Organs ◽  
Tubular Structure ◽  
Structural Development ◽  
Tubular Atrophy ◽  
Accessory Glands ◽  
Male Reproductive Organs ◽  
Sexually Mature

Microminipigs are becoming increasingly attractive alternatives for various experimental applications, such as general toxicology studies, owing to their manageable size. However, there are limited studies on the male reproductive organs of microminipigs, particularly on the histological aspects of sexual maturity. To clarify the development of male reproductive organs, 35 male microminipigs, aged 0 to 12 months, were used in this study. Histological and histomorphological evaluation was performed based on spermatogenic development, measurement of tubular structure in testes and epididymides, and histological progress of accessory glands. In addition, spontaneous testicular changes were quantitatively assessed. Histologically, male microminipigs sexually matured around 4.5 months of age, when spermatogenesis in testes and structural development in genital organs were completed. Spontaneous testicular changes occurred in all the animals investigated. Multinucleated giant cell was most commonly observed, followed by hypospermatogenesis and tubular atrophy/hypoplasia. However, the number of affected tubules was less than 1% in testes after 4.5 months of age, suggesting that the influence of these changes on evaluation of toxicity studies may be minimal. It is preferable to use sexually mature animals in toxicology studies; therefore, the information obtained by the present study will be helpful for future toxicity evaluations in microminipigs.

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