publication . Article . 2011

Study on the relationship between milk urea nitrogen (MUN) and fertility in dairy cattle houses in Tabriz

S Mosaferi; S Ettehad; H Kooshavar;
Open Access Persian
  • Published: 01 Aug 2011 Journal: Āsīb/shināsī-i Darmāngāhī-i Dāmpizishkī (issn: 2322-4746, eissn: 2476-6984, Copyright policy)
  • Publisher: Islamic Azad University, Tabriz Branch
The aim of this study was to assess the relationship between milk urea nitrogen (MUN) level and reproductive performance in high yielding dairy cattle houses in Tabriz, Iran. Among 213 selected dairy cattle, 76 heads (35.7%) have MUN < 16.00mg/dl (mean = 15.38 mg/dl) and 137 heads (64.3%) have MUN > 16 mg/dl (mean = 17.46 mg/dl). Our results indicated that MUN level in 81 heads of dairy cattle (total 124 heads) with mastitis, dystocia, laminitis, uterine infections or placenta replacement was higher than 16 mg/dl. We only observed a significantly positive association between MUN levels and dystocia (p= 0.032), while the association between MUN levels and inciden...
free text keywords: Dairy cattle, Blood urea nitrogen (BUN), Milk urea nitrogen (MUN), reproductive performance, Veterinary medicine, SF600-1100
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