Exploring uterine inflammation in postpartum primiparous precocious and conventional and multiparous Bos indicus beef cows.

ANDRADE, J. de S.; MOREIRA, E. M.; SOUZA, V. L. de; BARBOSA, I. P.; SILVA, G. M.; GOMES, L. S.; SILVA, S. A. de S.; NOLETO, G. C. S.; SILVA, R. R. da; LONDERO, U. S.; CORREA, M. N.; PFEIFER, L. F. M.; JÉSSICA DE SOUZA ANDRADE, BIONORTE, PROGRAMA DE PÓS-GRADUAÇÃO EM BIODIVERSIDADE E BIOTECNOLOGIA DA AMAZÔNIA LEGAL; ELIZÂNGELA MÍRIAN MOREIRA, UNIVERSIDADE FEDERAL DO AMAZONAS; VANESSA LEMOS DE SOUZA, UNIVERSIDADE FEDERAL DE RONDÔNIA; INGRID PEDRAÇA BARBOSA, UNIVERSIDADE FEDERAL DO ACRE; GEORGE MOREIRA SILVA, UNIVERSIDADE FEDERAL DE RONDÔNIA; LEONARDO SILVA GOMES, FACULDADES INTEGRADAS APARÍCIO CARVALHO; SAMIRA ALVES DE SOUZA SILVA, UNIVERSIDADE FEDERAL DE PELOTAS; GABRIELLY CRISTINA SANTOS NOLETO, FACULDADES INTEGRADAS APARÍCIO CARVALHO; RENATA REIS DA SILVA, CPAF-RO; URIEL SECCO LONDERO, UNIVERSIDADE FEDERAL DE PELOTAS; MÁRCIO NUNES CORREA, UNIVERSIDADE FEDERAL DE PELOTAS; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO.

Exploring uterine inflammation in postpartum primiparous precocious and conventional and multiparous Bos indicus beef cows.

2023

ANDRADE, J. de S. | MOREIRA, E. M. | SOUZA, V. L. de | BARBOSA, I. P. | SILVA, G. M. | GOMES, L. S. | SILVA, S. A. de S. | NOLETO, G. C. S. | SILVA, R. R. da | LONDERO, U. S. | CORREA, M. N. | PFEIFER, L. F. M. | JÉSSICA DE SOUZA ANDRADE, BIONORTE, PROGRAMA DE PÓS-GRADUAÇÃO EM BIODIVERSIDADE E BIOTECNOLOGIA DA AMAZÔNIA LEGAL; ELIZÂNGELA MÍRIAN MOREIRA, UNIVERSIDADE FEDERAL DO AMAZONAS; VANESSA LEMOS DE SOUZA, UNIVERSIDADE FEDERAL DE RONDÔNIA; INGRID PEDRAÇA BARBOSA, UNIVERSIDADE FEDERAL DO ACRE; GEORGE MOREIRA SILVA, UNIVERSIDADE FEDERAL DE RONDÔNIA; LEONARDO SILVA GOMES, FACULDADES INTEGRADAS APARÍCIO CARVALHO; SAMIRA ALVES DE SOUZA SILVA, UNIVERSIDADE FEDERAL DE PELOTAS; GABRIELLY CRISTINA SANTOS NOLETO, FACULDADES INTEGRADAS APARÍCIO CARVALHO; RENATA REIS DA SILVA, CPAF-RO; URIEL SECCO LONDERO, UNIVERSIDADE FEDERAL DE PELOTAS; MÁRCIO NUNES CORREA, UNIVERSIDADE FEDERAL DE PELOTAS; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO.

This study aimed to compare the postpartum uterine dynamics of primiparous precocious (PP), primiparous conventional (PC) and multiparous conventional (MC) Bos indicus beef cows. For this purpose, PP (n=8), PC (n=18) and MC (n=12) cows were enrolled in this study. These cows were evaluated at 20 and 10 days prepartum and weekly from parturition to 42 days postpartum (DPP). During this period, body weight (BW), subcutaneous fat thickness (SFT) and serum concentrations of glucose, B-hydroxybutyrate, albumin and haptoglobin were measured. Proportion of polymorphonuclear (PMN) cells, and abundance of mRNA transcripts of genes involved in uterine inflammation and uterine health were evaluated. The PP cows had lower (p<.05) BW and SFT than that for PC and MC cows during the study period. The serum concentration of albumin after 35 DPP was lower (p<.05) in PP cows. The PP cows had the highest proportion of PMN on 28 and 35 DPP compared to PC and MC cows. The relative mRNA abundance of IL-1B; and IL-8 increased after 21 DPP in PP cows compared to the other groups. The PC had the highest, MC had an intermediate, and PP cows had the lowest relative abundance of IL10 mRNA. Overall, these findings indicated that uterine inflammation was more pronounced in PP cows. Moreover, based on the proportion of PMN and abundance of transcripts associated with inflammation in the uterus, PP cows may require a longer period to recover their uterine health after calving.

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