Effects of monensin supplementation alone or in combination with Methafix on milk production and composition, ruminal parameters and serum metabolites of lactating dairy cows

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AZARFAR ARASH; Satari Karkazlou Younes; KIANI ALI; Khosarvinia Heshmatollah; KHALDARI MAJID

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Journal: Iranian Journal of Animal Science Year:2016 | Volume:47 | Issue:2 Page(s): 245-260

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Title

Effects of monensin supplementation alone or in combination with Methafix on milk production and composition, ruminal parameters and serum metabolites of lactating dairy cows

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Keywords

Dairy cowsQ1

methafixQ2

monensinQ1

rumen fermentationQ2

serum metabolitesQ2

Abstract

This study was conducted to evaluate the effects of inclusion of monensin alone or in combination with methafix (a commercial product containing malate and fumarate) in the diets of lactating Dairy cows on ruminal parameters and serum metabolites. Four multiparous Holstein lactating Dairy cows (657± 12 kg of live weight; 133 ± 41days in milk) were assigned to one of the four dietary treatments. The first treatment was the control diet(C), second was control diet supplemented with 24 mg of monensin/kg of DM (M), the third was control diet supplemented with 5 g of methafix/kg DM (ME) and the fourth treatment was C diet supplemented with 24 mg of monensin in combination with 5 g of methafix/kg DM (MM). Dietary supplementation with monensin alone or in combination with Metafix significantly decreased dry matter intake (P<0. 05), while the intake of crude protein (CP), neutral detergent fiber (NDF) and non-fiber carbohydrates (NFC) were not affected. Utilization efficiency of dry matter for milk production was higher in monensin and methafix-supplemented cows than in control cows (P<0. 05). Dietary supplementation with monensin decreased rumen concentrations of acetate and the ratio of acetate to propionate (A: P; P<0. 05). Serum concentration of triglycerides (TGs) was higher in M-fed cows compared to the C and ME-fed cows (P<0. 05). Serum concentration of total proteins (TP) was higher in ME-fed cows than in the C-fed cows (P<0. 05). Feeding Dairy cows with a combination of monensin and methafix increased serum concentration of TGs and TP compared to the control animals (P<0. 05).

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APA: Copy

AZARFAR, ARASH, Satari Karkazlou, Younes, KIANI, ALI, Khosarvinia, Heshmatollah, & KHALDARI, MAJID. (2016). Effects of monensin supplementation alone or in combination with Methafix on milk production and composition, ruminal parameters and serum metabolites of lactating dairy cows. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 47(2 ), 245-260. SID. https://sid.ir/paper/193554/en

Vancouver: Copy

AZARFAR ARASH, Satari Karkazlou Younes, KIANI ALI, Khosarvinia Heshmatollah, KHALDARI MAJID. Effects of monensin supplementation alone or in combination with Methafix on milk production and composition, ruminal parameters and serum metabolites of lactating dairy cows. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2016;47(2 ):245-260. Available from: https://sid.ir/paper/193554/en

IEEE: Copy

ARASH AZARFAR, Younes Satari Karkazlou, ALI KIANI, Heshmatollah Khosarvinia, and MAJID KHALDARI, “Effects of monensin supplementation alone or in combination with Methafix on milk production and composition, ruminal parameters and serum metabolites of lactating dairy cows,” IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 47, no. 2 , pp. 245–260, 2016, [Online]. Available: https://sid.ir/paper/193554/en

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