EFFECTS OF FEEDING RUMEN-PROTECTED METHIONINE ON PRODUCTION PERFORMANCE AND BLOOD METABOLITES OF EARLY LACTATING HOLSTEIN COWS

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DEHGHAN BANADAKI M.; BAHRAMI YEKDANGI H.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian Journal of Animal Science Year:2009 | Volume:40 | Issue:3 Page(s): 59-64

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Information Journal Paper

Title

EFFECTS OF FEEDING RUMEN-PROTECTED METHIONINE ON PRODUCTION PERFORMANCE AND BLOOD METABOLITES OF EARLY LACTATING HOLSTEIN COWS

Author(s)

DEHGHAN BANADAKI M. | BAHRAMI YEKDANGI H. | Issue Writer Certificate

Keywords

HOLSTEIN COWSQ2

RUMEN-PROTECTED METHIONINEQ2

MILK PRODUCTIONQ2

GLUCOSEQ3

NON ESTERIFIED FATTY ACIDSQ2

Abstract

Fifty six Holstein lactating cows (71 days in milk; 35 Kg/day MILK PRODUCTION) were employed in a complete block randomized design of repeated measurements. Cows were randomly allocated to two treatments based on their parity. Cows in group 1 were fed a balanced total mixed ration (600 g concentrate /kg DM and 400 g forages /kg DM) with 50 g Rumen Protected Methionine (RPM) per head per day (Methioplus 55%), while cows in group 2 were fed TMR without additive (control group). The experimental period was 40 days with 10 initial days for adaptation. RPM had no effect on MILK PRODUCTION, milk composition and dry matter intake. Milk composition namely fat, protein, lactose, solid non fat and total solid percentage did not change by treatment (P>0.05). Cows treated with RPM bore a higher concentration of plasma GLUCOSE, and a lower plasma concentration of nonesterified fatty acids (NEFA; P<0.05). Cows in the two groups did not differ in body condition score changes during the experimental periods. It was concluded that RPM increased plasma GLUCOSE, decreased NEFA concentration, and can lead to a decrease in the incidence of ketosis and fatty liver in early lactation cows via improving liver function in fat metabolism and gluconeogenesis.

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APA: Copy

DEHGHAN BANADAKI, M., & BAHRAMI YEKDANGI, H.. (2009). EFFECTS OF FEEDING RUMEN-PROTECTED METHIONINE ON PRODUCTION PERFORMANCE AND BLOOD METABOLITES OF EARLY LACTATING HOLSTEIN COWS. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 40(3), 59-64. SID. https://sid.ir/paper/193572/en

Vancouver: Copy

DEHGHAN BANADAKI M., BAHRAMI YEKDANGI H.. EFFECTS OF FEEDING RUMEN-PROTECTED METHIONINE ON PRODUCTION PERFORMANCE AND BLOOD METABOLITES OF EARLY LACTATING HOLSTEIN COWS. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2009;40(3):59-64. Available from: https://sid.ir/paper/193572/en

IEEE: Copy

M. DEHGHAN BANADAKI, and H. BAHRAMI YEKDANGI, “EFFECTS OF FEEDING RUMEN-PROTECTED METHIONINE ON PRODUCTION PERFORMANCE AND BLOOD METABOLITES OF EARLY LACTATING HOLSTEIN COWS,” IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 40, no. 3, pp. 59–64, 2009, [Online]. Available: https://sid.ir/paper/193572/en

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