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Effect of pomegranate by‐product silage on feed intake, blood metabolites, inflammatory responses, and prostaglandin F 2α metabolites in Holstein dairy cows
Author(s) -
Choupani Mohammad,
Riasi Ahmad,
Kowsar Rasoul,
Khorsandi Simin
Publication year - 2020
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.13473
Subject(s) - nefa , silage , dry matter , chemistry , zoology , serum amyloid a , dairy cattle , prostaglandin , cattle feeding , food science , fatty acid , medicine , biology , biochemistry , inflammation
Dairy cows often suffer metabolic disorders due to the challenges of the transition period. The aim of study was to determine the effects of feeding pomegranate by‐product silage (PBS) on feed intake and some blood parameters, such as non‐esterified fatty acids (NEFA) and beta hydroxy butyric acid (BHBA), interleukin‐1 (IL‐1), serum amyloid‐A (SAA), prostaglandin F 2α metabolites (PGFM), and progesterone (P4) in fresh Holstein cows. The experimental groups were as follows: CON (0 g PBS of DM) and PBS (120 g PBS of DM). Results showed that replacing corn silage with PBS had no effect on dry matter intake (DMI) throughout the study. The CON group had highest ( p < .05) NEFA at 14 d postpartum and serum BHBA was decreased by feeding PBS, especially on days 21 ( p < .05) and 28 ( p < .05) and the entire study ( p < .01). Cows fed PBS had lower ( p < .05) serum Malondialdehyde (MDA) than CON cows at different times. Feeding PBS decreased ( p < .01) serum IL‐1 compared to CON group (216.7 versus. 515.5 Pg/ml) at 28 d postpartum, and also cows fed 120 g PBS had higher ( p < .01) serum P4. It was concluded that feeding PBS had no adverse effect on feed intake, milk production, and some reproductive parameters. Moreover, PBS positively affected serum metabolites in fresh dairy cows.