C. Andrighetto
University of São Paulo
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Publication
Featured researches published by C. Andrighetto.
Journal of Reproduction and Development | 2013
Patrícia Aparecida Cardoso da Luz; Paulo Ramos da Silva Santos; C. Andrighetto; André Mendes Jorge; Antônio Chaves de Assis Neto
Abstract 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.
Spermatogenesis | 2012
Patrícia Aparecida Cardoso da Luz; C. Andrighetto; Paulo Ramos da Silva Santos; André Mendes Jorge; Maria Vitória Piemonte Constantino; Flávia T. V. Pereira; Andrea Mess; Antônio Chaves de Assis Neto
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.
Journal of Animal Science | 2004
Andre Mendes Jorge; C. Andrighetto; D. D. Millen; M. G. Calixto
Archive | 2012
P. R. Silva Santos; P. A. Cardoso Luz; C. Andrighetto; A. C. Assis Neto; Orlando Marques de Paiva; Júlio de Mesquita Filho; João Ribeiro de Barros
Journal of Animal Science | 2007
Esmeralda Rodrigues; Mario de Beni Arrigoni; André Mendes Jorge; P. S. A. Moreira; Waldmaryan Bianchini; D. D. Millen; Rita Pacheco; Janaina Conte Hadlich; C. Andrighetto; Cyntia Ludovico Martins
Journal of Animal Science | 2007
André Mendes Jorge; C. Andrighetto; Caroline de Lima Francisco; A. P. Neto; R. C. Mourao
Journal of Animal Science | 2007
André Mendes Jorge; C. Andrighetto; Rafael Silvio Bonilha Pinheiro; Caroline de Lima Francisco; A. P. Neto
Journal of Animal Science | 2004
Andre Mendes Jorge; C. Andrighetto
Journal of Animal Science | 2004
Andre Mendes Jorge; C. Andrighetto; D. D. Millen; M. G. Calixto
Journal of Animal Science | 2004
Andre Mendes Jorge; C. Andrighetto; D. D. Millen; M. G. Calixto