Plasma progesterone, metabolic hormones and beta-hydroxybutyrate in Holstein-Friesian cows after superovulation

Balázs Bényei, István Komlósi, Anna Pécsi, Margit Kulcsár, László Huzsvai, C. Barros, Gyula Huszenicza

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Metabolic hormones [insulin, leptin, insulin-like growth factor-I (IGF-I), thyroxine (T4) and triiodothyronine (T3)], progesterone (P4) and beta-hydroxybutyrate (BHB) serum concentrations were evaluated and their effect on the superovulation results of donor cows was investigated in a semi-arid environment. Body weight, body condition score (BCS) and lactation stage were also included in the analysis. Twenty-three Holstein-Friesian cows were superovulated with 600 IU FSHp following the routine procedure and flushed on day 7 in a Multiple Ovulation and Embryo Transfer Centre in the semi-arid area of Brazil. The corpora lutea (CL) were counted and blood samples were collected for assays. All of the hormones investigated and BHB serum concentrations were within the physiological ranges. There was a positive correlation between hormones, except between BHB and all the others. The leptin level was influenced by feeding status, as indicated by the BCS. Insulin, T4, T3 and BHB levels were affected by milking status. Dry cows had higher levels of all hormones except BHB. An optimum level of leptin resulted in the highest number of CL, while the linear increase of P4, T4 and IGF significantly increased the number of CL.

Original languageEnglish
Pages (from-to)485-495
Number of pages11
JournalActa veterinaria Hungarica
Volume59
Issue number4
DOIs
Publication statusPublished - Dec 1 2011

Keywords

  • Hormone interactions
  • Metabolic hormones
  • Progesterone
  • Semi-arid climate
  • Superovulation

ASJC Scopus subject areas

  • veterinary(all)

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