REPRODUCTION - Facultad de Ciencias Veterinarias
REPRODUCTION - Facultad de Ciencias Veterinarias
REPRODUCTION - Facultad de Ciencias Veterinarias
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832<br />
<strong>REPRODUCTION</strong><br />
Calving interval in water buffaloes<br />
Murrah in Zona da Mata<br />
<strong>de</strong> Pernambuco<br />
Sérgio Augusto <strong>de</strong> Albuquerque Fernan<strong>de</strong>s 1 ,<br />
Glesser Porto Barreto 2 , Severino Benone Paes Barbosa 2 , Kleber Regis Santoro 2<br />
1 Universida<strong>de</strong> Estadual do Sudoeste da Bahia, Brazil - 2 Universida<strong>de</strong> Fe<strong>de</strong>ral Rural <strong>de</strong> Pernambuco, Brazil<br />
fernan<strong>de</strong>s_pe@hotmail.com<br />
he aim of the study was analyze calving interval (CI) of buffalo’s Murrah herd. Data from a herd of 75 Murrah dams<br />
breeds, collected from 1982 to 1996. Animal were raised in the extensive system in native pasture, with supplementation<br />
in the dry period and mineralization in the Zona da Mata <strong>de</strong> Pernambuco. It was <strong>de</strong>termined the<br />
calving interval (CI) of Murrah buffaloes. The statistical analyses procedure was carried out by GLM mo<strong>de</strong>l (SAS), fitting<br />
mixed linear mo<strong>de</strong>l. Was not observed sex influence in the CI. The average adjusted for the CI was 424.50 days (male) and<br />
for was 422.63 (females), with no significant statistical difference. IP average observed was 413.3 days. Was observed<br />
calving concentration in autumn/winter (69.9%). The season of calving did not influence the CI (autumn /winter -<br />
411.57 days, spring / summer - 435.57 days). The buffaloes have seasonal reproductive behavior.<br />
Keywords: breeding, seasonality, seasonality<br />
Proceedings 9 th World Buffalo Congress
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