Relationship between blood urea, protein, creatinine, triglycerides and macro-mineral concentrations with the quality and quantity of milk in dairy Holstein cows

نویسندگان

  • Ali-Gholi Ramin Department of Clinical Science, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
  • Azadeh Babapour Veterinary Student, Faculty of Veterinary Medicine, Urmia University
  • Gholamali Moghadam Department of Clinical Science, Faculty of Veterinary Medicine, Tabriz University, Tabriz, Iran
  • Shahram Nozad Department of Clinical Science, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
  • Siamak Asri-Rezaei Department of Clinical Science, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
  • Sina Ramin Medical Student, Tabriz University of Medical Sciences, Tabriz, Iran
چکیده مقاله:

Seventy six high and low producer cows were selected to determine the composition of the blood and milk parameters, and their interrelationships to determine the indices which could be useful to improve the milk yield. The highest mean blood concentrations were found in high producer cows. Mean values for blood urea nitrogen (BUN), serum protein (SPtn), creatinine, triglycerides (TGs), cholesterol, and beta-hydroxybutyric acid (BHB) were 25.10 mg dL-1, 10.15 g dL-1, 0.81, 62.30, 177.10 and 0.16 mmol L-1, and for macro-minerals including SCa, SMg, serum in-organic phosphorus (SIP), SNa and SK were 3.85, 2.66, 4.63, 108.00 and 4.34 mmol L-1, respectively. The highest concentrations for milk parameters, were observed in the high producers, and were significant only for MCa, MIP and MMg. Mean values for milk urea nitrogen (MUN), milk protein (MPtn) and lactose were 19.90 mg dL-1, 0.39 g dL-1, and 4.12% and for macro-minerals, 13.24, 3.88, 11.03, 73.30 and 16.90 mmol L-1, respectively. There were significant positive correlations between the blood and milk parameters except for creatinine/BHB, TGs/cholesterol and MNa/MK which were not significant. The correlations between the blood parameters were greater than in the milk parameters. Creatinine and SPtn, MUN and MPtn were the main parameters in that the relationships between MPtn with BUN, SPtn and creatinine were more noticeable than others. The regression analysis showed that BUN with the SIP and creatinine, MPtn with the BUN and creatinine and MUN with the SIP and SMg were the appropriate parameters in improvement studies related to the milk yield. In conclusion, BUN, SPtn, MUN and MPtn concentrations are the most effective indices for predicting the preferred milk yield.

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منابع مشابه

relationship between blood urea, protein, creatinine, triglycerides and macro-mineral concentrations with the quality and quantity of milk in dairy holstein cows

seventy six high and low producer cows were selected to determine the composition of theblood and milk parameters, and their interrelationships to determine the indices which could beuseful to improve the milk yield. the highest mean blood concentrations were found in highproducer cows. mean values for blood urea nitrogen (bun), serum protein (sptn), creatinine,triglycerides (tgs), cholesterol,...

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Diurnal variations in milk macro-mineral concentrations in Holstein dairy cows in Urmia, Iran

Milk samples from high and low milk producer Holstein cows, were obtained during the morning and afternoon milking over a one week period. Overall, 1064 samples were tested within 14 times sampling in Urmia, Iran. Milk macro-mineral concentrations in the morning milking and in low producers were greater than in the afternoon and in high producers. The highest and lowest concentrations were obse...

متن کامل

Diurnal variations in milk macro-mineral concentrations in Holstein dairy cows in Urmia, Iran

Milk samples from high and low milk producer Holstein cows, were obtained during the morning and afternoon milking over a one week period. Overall, 1064 samples were tested within 14 times sampling in Urmia, Iran. Milk macro-mineral concentrations in the morning milking and in low producers were greater than in the afternoon and in high producers. The highest and lowest concentrations were obse...

متن کامل

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عنوان ژورنال

دوره 3  شماره 1

صفحات  55- 59

تاریخ انتشار 2012-03-01

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