Your browser doesn't support javascript.
loading
Effects of blood pathological changes before TAI on pregnancy of dairy cows with anestrus and estrus / [Efeitos de mudanças patológicas de plasma antes de (TAI) na gestação de vacas em anestro e estro]
Di, Y; Zhao, C; Bai, Y; Wang, D; Zhang, F; Xu, C; Xi, C.
  • Di, Y; Heilongjiang Bayi Agricultural University. College of Animal Science and Veterinary Medicine. Heilongjiang. CN
  • Zhao, C; Heilongjiang Bayi Agricultural University. College of Animal Science and Veterinary Medicine. Heilongjiang. CN
  • Bai, Y; Heilongjiang Bayi Agricultural University. College of Animal Science and Veterinary Medicine. Heilongjiang. CN
  • Wang, D; Heilongjiang Bayi Agricultural University. College of Animal Science and Veterinary Medicine. Heilongjiang. CN
  • Zhang, F; Heilongjiang Bayi Agricultural University. College of Animal Science and Veterinary Medicine. Heilongjiang. CN
  • Xu, C; Heilongjiang Bayi Agricultural University. College of Animal Science and Veterinary Medicine. Heilongjiang. CN
  • Xi, C; Heilongjiang Bayi Agricultural University. College of Animal Science and Veterinary Medicine. Heilongjiang. CN
Arq. bras. med. vet. zootec. (Online) ; 73(1): 1-10, Jan.-Feb. 2021. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1153061
ABSTRACT
The objective of this study was to investigate the influence of plasma pathological changes before timed artificial insemination (TAI) on pregnancy of cows. The contents of estrogen (E2), progesterone (P4), glucose (Glu), selenium (Se), brain-derived neurotrophic factor (BDNF), and histamine (HIS) in plasma of 48 Holstein cows were measured before TAI. According to the estrus detection, the cows were divided into estrus (E) and anestrus (A) groups. After pregnancy testing at 28 d after TAI, two groups of E and A were divided into positive pregnancy of E group (EP+), negative pregnancy of E group (EP-), positive pregnancy of A group (AP+), and negative pregnancy of A group (AP-). The contents of E2, P4, Glu, Se, BDNF and hIS significantly differed among the four groups (P<0.01). The ROC analysis was used to determine the risk of negative pregnancy test (-) after TAI was increased when plasma E2 was less than 46.45 pmol/L in cows before TAI. The changes in E2, P4,hIS, Glu, and BDNF in the blood of natural estrus and natural anestrus cows affected the pregnancy after TAI. the level of E2 in plasma may be used to assess the risk of negative pregnancy after TAI.(AU)
RESUMO
O objetivo do presente estudo foi investigar a influência de mudanças patológicas de plasma antes de inseminação artificial (TAI) na gestação de vacas. O conteúdo de estrogênio (E2), progesterona (P4), glucose (Glu), selênio (Se), fator neurotrófico derivado do cérebro (BDNF), e histamina (HIS) no plasma de 48 vacas Holstein foi medido antes de TAI. De acordo com a detecção de estro, as vacas foram divididas em dois grupos estro (E) e anestro (A). Após teste de gestação 28 d após TAI, dois grupos de E e A foram formados em gestação positiva do grupo E (EP+), gestação negativa do grupo E (EP-), gestação positiva do grupo A (AP+), e gestação negativa do grupo A (AP-). Os valores de E2, P4, Glu, Se, BDNF e hIS foram significativamente diferentes entre os quatro grupos (P<0,01). A análise ROC foi utilizada para determinar o risco de teste de gestação negativo (-) após aumento de TAI quando plasma E2 estava abaixo de 46,45 pmol/L em vacas antes de TAI. Alterações em E2, P4,hIS, Glu e BDNF no sangue de estro natural e anestro natural em vacas afetou a gestação após TAI. O nível de E2 no plasma pode ser usado para avaliar o risco de gestação negativa após TAI.(AU)
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Plasma / Anestrus / Estrus / Insemination, Artificial Type of study: Prognostic study Limits: Animals / Pregnancy Language: English Journal: Arq. bras. med. vet. zootec. (Online) Year: 2021 Type: Article Institution/Affiliation country: Heilongjiang Bayi Agricultural University/CN

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Index: LILACS (Americas) Main subject: Plasma / Anestrus / Estrus / Insemination, Artificial Type of study: Prognostic study Limits: Animals / Pregnancy Language: English Journal: Arq. bras. med. vet. zootec. (Online) Year: 2021 Type: Article Institution/Affiliation country: Heilongjiang Bayi Agricultural University/CN