Effect of feeding finely ground versus steam-flaked corn grain on milk yield, composition and some blood metabolites in early lactating dairy cows

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KAZEMI BONCHENARI MEHDI; MIRZAEI MEHDI; KHODAEI MOTLAGH MAHDI; KHALTABADI FARAHANI AMIR HOSSEIN

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Journal: Iranian Journal of Animal Science Year:2017 | Volume:47 | Issue:4 Page(s): 589-598

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Title

Effect of feeding finely ground versus steam-flaked corn grain on milk yield, composition and some blood metabolites in early lactating dairy cows

Author(s)

KAZEMI BONCHENARI MEHDI | MIRZAEI MEHDI | KHODAEI MOTLAGH MAHDI | KHALTABADI FARAHANI AMIR HOSSEIN | Issue Writer Certificate

Keywords

Corn processingQ2

glucoseQ2

metabolic disordersQ2

milk fatQ2

performanceQ2

Abstract

Hundred and thirty lactating Holstein cows (36 primiparous and 94 multiparous) in early lactation period (34. 3 ± 9. 1 days in milk) with averaging milk yield 52. 2 ± 9. 2 kg/d were allocated in a change-over design to compare the feeding of finely ground (FGC) versus steam flake corn grain (SFC). The performance, some blood metabolites, liver enzymes and insulin hormone were evaluated. The study lasted 44 days in two 22 days periods with the first 17 days as adaptation period and the last 5 days as sample collection period. The SFC was prepared by steam flaking of corn for 30 minutes in a stainless steel tank to increase the corn moisture up to 18-20%. The results show that DMI (P=0. 53) as well as milk yield (P=0. 078) were not differing between treatments (P>0. 05). Corrected milk fat was tended to be greater for FGC compared to SFC (P=0. 07), and energy corrected milk also was increased in SFC (P=0. 02). Feeding ground corn caused to increase milk fat and steam flake corn feeding caused to increase milk protein percent (P<0. 01). Although flaking increased blood glucose concentration, no other blood metabolites were differed between treatments. Insulin concentration as well as liver enzyme (ALT and AST) concentrations was similar between two treatments (P>0. 05). In conclusion considering the cost of flaking and the base on present research results, corn grain flaking may not be recommendable for early lactation period.

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APA: Copy

KAZEMI BONCHENARI, MEHDI, MIRZAEI, MEHDI, KHODAEI MOTLAGH, MAHDI, & KHALTABADI FARAHANI, AMIR HOSSEIN. (2017). Effect of feeding finely ground versus steam-flaked corn grain on milk yield, composition and some blood metabolites in early lactating dairy cows. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 47(4 ), 589-598. SID. https://sid.ir/paper/193648/en

Vancouver: Copy

KAZEMI BONCHENARI MEHDI, MIRZAEI MEHDI, KHODAEI MOTLAGH MAHDI, KHALTABADI FARAHANI AMIR HOSSEIN. Effect of feeding finely ground versus steam-flaked corn grain on milk yield, composition and some blood metabolites in early lactating dairy cows. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2017;47(4 ):589-598. Available from: https://sid.ir/paper/193648/en

IEEE: Copy

MEHDI KAZEMI BONCHENARI, MEHDI MIRZAEI, MAHDI KHODAEI MOTLAGH, and AMIR HOSSEIN KHALTABADI FARAHANI, “Effect of feeding finely ground versus steam-flaked corn grain on milk yield, composition and some blood metabolites in early lactating dairy cows,” IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 47, no. 4 , pp. 589–598, 2017, [Online]. Available: https://sid.ir/paper/193648/en

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