Open AccessReproductive disorders in dairy cows of the southwest of Paraná
Author(s) -
Fernanda Elisa Giacomelli,
Adalgiza Pinto Neto,
Marcelo Falci Mota,
Antônio Campanha Martinez,
Luiz Sérgio Merlini
Publication year - 2018
Publication title -
comunicata scientiae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.238
H-Index - 12
eISSN - 2177-5133
pISSN - 2176-9079
DOI - 10.14295/cs.v9i3.2265
Subject(s) - estrous cycle , ice calving , luteal phase , follicular phase , dairy cattle , reproductive cycle , zoology , pasture , biology , reproduction , medicine , pregnancy , endocrinology , agronomy , ecology , lactation , genetics
Reproductive efficiency of dairy cows is evaluated directly considering the calving interval, which is affected by nutrition, irregular estrus cycle, prolonged anestrus, and reproductive diseases. Reproductive diseases cause economic losses due to diagnosis and treatment costs, and reduction in milk production. Thus, the objective of this study was to report the occurrence of the main reproductive disorders in dairy cows of the Southwest of Paraná, South of Brazil. Data of ultrasound diagnoses were collected from 2274 cows of 70 rural properties in the municipalities of Realeza, Planalto, Capanema, Pérola do Oeste, and Santa Isabel do Oeste from January 2014 to May 2015. Reproductive disorders were found in 24.50% (557/2274) of the animals evaluated; ovarian cysts (follicular, and luteal) were the most significant disorders, found in 16.13% (367/2274) of the cases. Other disorders were found less frequently. The occurrence of follicular and luteal cysts was observed especially in primiparous animals in months of pasture transition.