Relationship of scrotal circumference and testicular volume to age and body weight in the swamp buffalo (Bubalus bubalis)

Bongso, T. A.; Hassan, Muhammad Rosdi Abu; Nordin, W.

doi:10.1016/0093-691x(84)90425-4

Cited by 18 publications

(16 citation statements)

References 12 publications

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“…These cells could be classified into eight stages of cellular associations according to the tubular morphology method [16]. Bongso [17] noted that the spermatozoa in the tubular lumen of swamp buffalo had the same morphology at 16 months. In crossbred buffalo (Mediterranean × Jaffarabadi), this morphology was observed at 13 months [18].…”

Section: Resultsmentioning

confidence: 99%

The Correlation between Age, Body Weight and Testicular Parameters in Murrah Buffalo Bulls Raised in Brazil

Luz

Santos

Andrighetto

et al. 2013

Journal of Reproduction and Development

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Buffalo are an economically important source for meat and milk production, especially in Brazil. However, important aspects of their biology remain unknown thus far. Herein, we describe the reproductive characteristics of male Murrah buffalo (Bubalus bubalis) raised under extensive management conditions by applying biometrics associated with testicular weight. We analyzed seven males, divided into two groups: G1, which consisted of four 18-month-old animals, and G2, which consisted of three 24-month-old animals. Testicular development occurs slowly in Murrah buffalo, suggesting a delay of sexual maturity. The biometric testicular parameters analyzed were scrotal circumference, testicular weight, testicular length, testicular width, testicular thickness and testicular circumference. Our data indicate strong correlations between SC, age and body weight, and additional significant relationships were identified between body weight, age and other testicular parameters. Thus, these parameters are suitable indicators when selecting bulls for breeding purposes.

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Section: Resultsmentioning

confidence: 99%

The Correlation between Age, Body Weight and Testicular Parameters in Murrah Buffalo Bulls Raised in Brazil

Luz

Santos

Andrighetto

et al. 2013

Journal of Reproduction and Development

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“…[15][16][17]. A positive correlation between male body size and testis size has been reported for field-collected rats, Rattus rattus (18); swamp buffalo, Bubalus bubalis (19); Egyptian buffalo, Bos bubalis (20); bonnet macaques, Macaca radiata (21); rams (22); and goats (23). Unfortunately, all of these studies examined immature as well as young and old adult males, yet none controlled for male age in their statistical analyses.…”

mentioning

confidence: 99%

Large-male advantages associated with costs of sperm production in Drosophila hydei, a species with giant sperm.

Pitnick

Markow

1994

Proc. Natl. Acad. Sci. U.S.A.

121

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Males of the fruit fly Drosophila hydei were found to produce 23.47 ± 0.46-mm-long spermatozoa, the longest ever described. No relationship was found between male body size and sperm length. We predicted that if these giant gametes are costly for males to produce, then correlations should exist between male body size, rates ofsperm production, and fitness attributes associated with the production of sperm. Smaller males were found to make a greater relative investment in testicular tissue growth, even though they have shorter and thinner testes. Smaller males were also found to (i) be maturing fewer sperm bundles within the testes at any point in time than larger males, (it) require a longer period of time post-eclosion to become reproductively mature, (ui) mate with fewer females, (iv) transfer fewer sperm per copulation, and (v) produce fewer progeny. The significance ofthese ridings for body size-related fitness and the question of sperm size evolution are discussed.

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“…According to histological analyses, variations in the buffalo species pubertal stage can be observed 5 , 7 , 8 . Ohashi, 7 analyzing crossbred buffaloes (Mediterranean x Jaffarabadi), observed that puberty began in animals aged 10 to 14 mo.…”

Section: Discussionmentioning

confidence: 99%

Daily sperm production and evaluation of morphological reproductive parameters of Murrah buffaloes in an extensive breeding system

et al. 2012

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The development of male sexual maturity varies among buffaloes. The Murrah buffalo is considered the most important and efficient milk and fat producer, but aspects of its reproductive biology are still unknown. The present study aimed to evaluate the daily sperm production (DSP) and spermatogenesis in developing Murrah buffalo bulls by evaluation of the seminiferous tubules, testicular morphometry and using light microscopy and scanning electron microscopy. The testes of Murrah buffalo bulls at 18 mo was immature and at 24 mo could still be considered an average-efficiency breed based on their DSP. At 24 mo, the DSP rate was 0.97 billion sperm per testis and 13 million sperm per gram of testis. However, the animals had superior morphometric parameters compared with those of other livestock animals, except for the seminiferous tubule volume and diameter, which were inferior. In conclusion, our data support former views that the testes of the Murrah breed does not reach sexual maturity before 2 y of age and that important developmental steps occur later than Murrah crossbreeds from Brazil.

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Relationship of scrotal circumference and testicular volume to age and body weight in the swamp buffalo (Bubalus bubalis)

Cited by 18 publications

References 12 publications

The Correlation between Age, Body Weight and Testicular Parameters in Murrah Buffalo Bulls Raised in Brazil

The Correlation between Age, Body Weight and Testicular Parameters in Murrah Buffalo Bulls Raised in Brazil

Large-male advantages associated with costs of sperm production in Drosophila hydei, a species with giant sperm.

Daily sperm production and evaluation of morphological reproductive parameters of Murrah buffaloes in an extensive breeding system

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