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Veterinary Research Forum، جلد ۳، شماره ۴، صفحات ۲۸۱-۲۸۵
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Diurnal variations in milk macro-mineral concentrations in Holstein dairy cows in Urmia, Iran |
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| چکیده انگلیسی مقاله |
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 observed in Na+ and Mg++, respectively. Mean milk values between low and high producers in the morning, afternoon and daily milking times were different (p < 0.05). The individual comparison of milk parameters between both groups in the different milking times were also different (p < 0.05). The results of correlation among macro-minerals in the morning, afternoon and overall milking showed significant and positive correlations among all macro-minerals except for Na+ and K+, in which there was a significant negative correlation (p < 0.05). The highest and lowest correlations were found between Ca++ and inorganic phosphorus (IP) (r=0.37, p < 0.05) and Na+ and IP (r=0.10, p < 0.05), respectively. It is concluded that the concentration of macro-minerals in different producers varied between milking times. The sodium concentration was the highest while Mg++ was the lowest among macro-minerals. The correlation between Ca++/ IP was the highest, while Na+/K+ revealed a negative correlation. Therefore, by organizing the appropriate macro-minerals in the ration, it would be possible to achieve an optimal purpose from animal husbandry. |
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| کلیدواژه‌های انگلیسی مقاله |
Milk,Cows,Milking time,Holstein,Macro-minerals |
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| نویسندگان مقاله |
شهرام نوزاد |
department of clinical sciences, faculty of veterinary medicine, urmia university, urmia, iran
سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)
علیقلی رامین | ali gholi
department of clinical sciences, faculty of veterinary medicine, urmia university, urmia, iran
سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)
سیامک عصری رضایی | asri rezaie
department of clinical sciences, faculty of veterinary medicine, urmia university, urmia, iran
سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)
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| نشانی اینترنتی |
http://vrf.iranjournals.ir/article_1603_23180f572729efc8aa819d80c515b961.pdf |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
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