M.ARDIANSYAH, 061614153003 (2019) HUBUNGAN ANTARA KADAR MILK UREA NITROGEN (MUN) PADA WAKTU INSEMINASI TERHADAP ANGKA KEBUNTINGAN DAN PROFIL IGF-1 PADA SAPI PERAH FRIESIAN HOLSTEIN PENELITIAN EKSPLORATIF LABORATORIS. Thesis thesis, Universitas Airlangga.

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Abstract

Milk Urea Nitrogen (MUN) is high due to high protein content in feed. The high level of MUN can affect hormonal systems including growth hormone IGF-1 and reduce pregnancy rates. The aim of this study is to determine MUN as an indicator of feed evaluation and see the corelation between MUN and IGF-1 levels and pregnancy rates. The cows according to the criteria were sampled to determine the levels of MUN and IGF-1 then processed with the application Curve Expert 1.4 and SPSS 21. Value r = 0.75 between MUN and IGF-1 stated that there was a strong correlation between the two. There were significant differences between MUN and pregnancy rates (P <0.05). High and low levels of MUN will affect pregnancy rates. All sample of MUN with levels of 17-28.5 mg / dl did not have pregnancy and MUN with levels of 9-12 mg / dl was 62,5% pregnant.

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