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Featured researches published by C. Andrighetto.


Journal of Reproduction and Development | 2013

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

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

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

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

Correlations among carcass traits taken by ultrasound and after slaughter in Mediterranean (Bubalus bubalis) bulls fed in feedlot

Andre Mendes Jorge; C. Andrighetto; D. D. Millen; M. G. Calixto


Archive | 2012

Evaluation of the efficiency of two fasteners used in the preservation of the testicular parenchyma

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

Physical and chemical meat traits of young heifers from different genetic groups

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

Predicting beef carcass retail products of Mediterranean buffaloes by real-time ultrasound measures

André Mendes Jorge; C. Andrighetto; Caroline de Lima Francisco; A. P. Neto; R. C. Mourao


Journal of Animal Science | 2007

Correlations among carcass traits taken by ultrasound and after slaughter in Mediterranean (Bubalus bubalis) buffaloes

André Mendes Jorge; C. Andrighetto; Rafael Silvio Bonilha Pinheiro; Caroline de Lima Francisco; A. P. Neto


Journal of Animal Science | 2004

Effect of monensin on milk production, composition and body condition score of Murrah buffalo cows in early lactation

Andre Mendes Jorge; C. Andrighetto


Journal of Animal Science | 2004

Physical carcass composition and tissue relations from buffaloes of three genetic groups finished in feedlot and slaughtered at different stages of maturity

Andre Mendes Jorge; C. Andrighetto; D. D. Millen; M. G. Calixto


Journal of Animal Science | 2004

Quantitative carcass traits from buffaloes of three genetic groups finished in feedlot and slaughtered at different stages of maturity

Andre Mendes Jorge; C. Andrighetto; D. D. Millen; M. G. Calixto

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Andrea Mess

University of São Paulo

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P. S. A. Moreira

Universidade Federal de Mato Grosso

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Rita Pacheco

Instituto Superior de Engenharia de Lisboa

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