title: Feed degradability, rumen fermentation and blood metabolites in response to essential oil addition to fistulated non-lactating dairy cow diets.
abstract: The effects of essential oils (EOs) on ruminal nutrient disappearance, rumen fermentation and blood metabolites in fistulated non-lactating dairy cows were studied. Four fistulated non-lactaing dairy cows were used in a 4 × 4 Latin square design; the experiment consisted of four periods of 21 days in each period, with the first 14 days for adaptation followed by 7 days of measurement period. Animals were fed 3 kg/day of 21% crude protein (CP) concentrate and ad libitum corn silage. Treatments were: (i) control; (ii) 2 mL Allicin/cow/day; (iii) 2 mL zingiberene/cow/day; and (iv) 2 mL citral/cow/day. The results demonstrated that EOs increased dry matter and neutral detergent fiber degradabilities at 48 and 72 h, but had no effect on acid detergent fiber and CP degradabilities. EOs did not change ruminal pH, ammonia nitrogen, protozoa, volatile fatty acid concentrations and blood glucose but reduced blood urea nitrogen at 4 h.
authors.affiliation: School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
authors.forename: Wisitiporn
authors.initials: W
authors.lastname: Suksombat
authors.affiliation: School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
authors.forename: Atitthan
authors.initials: A
authors.lastname: Nanon
authors.affiliation: School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
authors.forename: Chayapol
authors.initials: C
authors.lastname: Meeprom
authors.affiliation: School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
authors.forename: Pipat
authors.initials: P
authors.lastname: Lounglawan
mesh_terms: D000080462:Acyclic Monoterpenes; D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena / Q000502:physiology*; D000818:Animals; D001786:Blood Glucose; D001806:Blood Urea Nitrogen; D002417:Cattle / Q000097:blood / Q000378:metabolism* / Q000502:physiology*; D004032:Diet / Q000662:veterinary*; D004043:Dietary Fiber / Q000378:metabolism*; D019587:Dietary Supplements; D004063:Digestion / Q000502:physiology*; D004220:Disulfides; D005260:Female; D005285:Fermentation / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D000081222:Monocyclic Sesquiterpenes; D039821:Monoterpenes / Q000008:administration & dosage*; D009822:Oils, Volatile / Q000008:administration & dosage*; D012417:Rumen / Q000378:metabolism*; D012717:Sesquiterpenes / Q000008:administration & dosage*; D013441:Sulfinic Acids / Q000008:administration & dosage*
chemical_list: D000080462:Acyclic Monoterpenes; D001786:Blood Glucose; D004043:Dietary Fiber; D004220:Disulfides; D000081222:Monocyclic Sesquiterpenes; D039821:Monoterpenes; D009822:Oils, Volatile; D012717:Sesquiterpenes; D013441:Sulfinic Acids; C006452:allicin; C477983:zingiberene; C007076:citral
keywords: allicin; citral; degradability; rumen fermentation; zingiberene