Difference between revisions of "Chinchilla Reproduction - Anatomy & Physiology"
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| − | + | <big><center>[[Reproductive System|'''BACK TO REPRODUCTIVE SYSTEM''']]</center></big> | |
| − | === Scrotum and Testes | + | <big><center>[[Reproductive_System#Small_Domestic_Mammals|'''BACK TO SMALL DOMESTIC MAMMALS''']]</center></big> |
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| + | * [[Chinchilla -Male- Anatomy & Physiology|Male]] | ||
| + | * [[Chinchilla -Female- Anatomy & Physiology|Female]] | ||
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| + | = MALE = | ||
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| + | == Scrotum and Testes == | ||
* Only a very slight scrotal region is visible externally (no true scrotum). | * Only a very slight scrotal region is visible externally (no true scrotum). | ||
* Thin-walled '''scrotal diverticula''' extend cranially on either side of the base of the penis. | * Thin-walled '''scrotal diverticula''' extend cranially on either side of the base of the penis. | ||
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* Large fat body extends cranially into the abdominal cavity from the cranial pole of each testis. | * Large fat body extends cranially into the abdominal cavity from the cranial pole of each testis. | ||
| + | ---- | ||
| − | + | == Accessory Sex Glands== | |
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| − | + | * '''Vesicular glands''' are very long and tubular. | |
| − | * | + | * '''Prostate gland''' has paired large ventral lobes and paired small dorsal lobes. |
| + | * '''Bulbourethral glands''' are dorsolateral to '''ischiocavernosus muscles'''. | ||
| + | ** Isciocavernosus muscles are enormous, swelling on either side of the rectum and meeting over its top. | ||
| + | ---- | ||
| − | == | + | == Penis == |
| − | + | * Penis points caudally when relaxed and cranially when [[Reproductive_Behaviour_-_Erection_-_Anatomy_%26_Physiology|erect]]. | |
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| − | * Penis points caudally when relaxed and cranially when [[ | ||
* 1.5cm in length | * 1.5cm in length | ||
* '''Sigmoid flexure''' | * '''Sigmoid flexure''' | ||
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** The small supporting bone is known as the '''baculum'''. | ** The small supporting bone is known as the '''baculum'''. | ||
| + | ---- | ||
| − | + | == Copulation == | |
| − | * [[Spermatogenesis_and_Spermiation_- | + | * [[Male_Reproductive_Tract_-Spermatogenesis_and_Spermiation_-_Anatomy_%26_Physiology&action|Spermatogenesis]] occurs at about 2-3 months. |
* Copulatory maturity is not until about 8 months. | * Copulatory maturity is not until about 8 months. | ||
* Breeds all year round. | * Breeds all year round. | ||
* '''Copulatory plug''' at mating. | * '''Copulatory plug''' at mating. | ||
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Revision as of 11:27, 21 July 2008
MALE
Scrotum and Testes
- Only a very slight scrotal region is visible externally (no true scrotum).
- Thin-walled scrotal diverticula extend cranially on either side of the base of the penis.
- Each diverticulum is occupied by the tail of the epididymis.
- On either side of the anus are two postanal sacs.
- Caudal epididymis can lie in the postanal sacs.
- Testes and head of the epididymis is in the region of the inguinal ring.
- Large fat body extends cranially into the abdominal cavity from the cranial pole of each testis.
Accessory Sex Glands
- Vesicular glands are very long and tubular.
- Prostate gland has paired large ventral lobes and paired small dorsal lobes.
- Bulbourethral glands are dorsolateral to ischiocavernosus muscles.
- Isciocavernosus muscles are enormous, swelling on either side of the rectum and meeting over its top.
Penis
- Penis points caudally when relaxed and cranially when erect.
- 1.5cm in length
- Sigmoid flexure
- Os penis in the distal portion.
- The small supporting bone is known as the baculum.
Copulation
- Spermatogenesis occurs at about 2-3 months.
- Copulatory maturity is not until about 8 months.
- Breeds all year round.
- Copulatory plug at mating.