Efeito do edema de glândula mamária no periparto em matrizes suínas sobre a qualidade do leite e o desempenho de leitões lactentes

Abstract

Mammary gland edema is a clinical sign of Postpartum Dysgalactia Syndrome (SDPP), and can compromise the quality, ejection, and availability of milk, in addition it is associated with puerperal mastitis. The objective of this study was to evaluate the effect of mammary gland edema on milk quality and, consequently, on the performance of piglets during this period. The experiment was carried out at the Piglet Production Unit (UPL) of Cooperativa Frísia, evaluating 91 females, 43 from the control group and 48 that had mammary gland edema, that was firm and had teat lesions. The performance of the progenies from these two groups was evaluated (1274 piglets). The concentration of total proteins, ether extract, somatic cell count (CCS), lactose, urea and total solids were evaluated on milk samples from these sows. The equipment used to evaluate the milk was the Combiscope, which consists of FTIR (infrared with Fourier transformer). Rectal temperature of breeding females was measured daily to evaluate the systemic effect of the mammary gland edema. With the objective of evaluating the impact of mammary gland edema and consequently of SDPP on the performance, all piglets were weighted on the 1º, 7º and 14º day of life. Mortality rate was also recorded in these two groups. There was a statistical difference in the milk analysis regarding Somatic Cell Count (SCC) and urea concentration between the two groups, with higher values in the EDEMA group regarding CCS and a lower concentration of urea on milk. Furthermore, the performance of suckling piglets was reduced in the progeny of sows with mammary gland edema. The results obtained allow us to affirm that piglets were compromised due to edema of the mammary gland and consequent change in the quality of the nutritional parameters of the milk.