Effect of phytol in forage on phytanic acid content in cow's milk

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dc.authoridElsabagh, Mabrouk/0000-0002-0596-6547
dc.authoridSugino, Toshihisa/0000-0001-5502-3451
dc.authoridKurokawa, Yuzo/0000-0002-0091-2275
dc.contributor.authorLv, Renlong
dc.contributor.authorElsabagh, Mabrouk
dc.contributor.authorObitsu, Taketo
dc.contributor.authorSugino, Toshihisa
dc.contributor.authorKurokawa, Yuzo
dc.date.accessioned2024-11-07T13:35:00Z
dc.date.available2024-11-07T13:35:00Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractObjective: Bioactive compounds in ruminant products are related to functional compounds in their diets. Therefore, this study aimed to explore the effect of forage sources, Italian ryegrass (IR) silage vs corn silage (CS) in the total mixed ration (TMR), on milk production, milk composition, and phytanic acid content in milk, as well as on the extent of conversion of dietary phytol to milk phytanic acid. Methods: Phytanic acid content in milk was investigated for cows fed a TMR containing either IR silage or CS using 17 cows over three periods of 21 days each. In periods 1 and 3, cows were fed CS-based TMR (30% CS), while in period 2, cows were fed IR silage-based TMR (20% IR silage and10% CS). Results: The results showed that there were no differences in fat, protein, lactose, solidsnot-fat, somatic cell count, and fatty acid composition of milk among the three experimental periods. There were no differences in the plasma concentration of glucose, triglycerides, total cholesterol, and nonesterified fatty acids among the three experimental periods, while the blood urea nitrogen was higher (p<0.05) in period 2. The milk phytanic acid content was higher (p<0.05) in period 2 (13.9 mg/kg) compared with periods 1 (9.30 mg/kg) and 3 (8.80 mg/kg). Also, the phytanic acid content in the feces was higher (p<0.05) in period 2 (1.65 mg/kg dry matter [DM]) compared with period 1 (1.15 mg/kg DM), and 3 (1.17 mg/kg DM). Although the phytol contents in feces did not differ among the three feeding periods, the conversion ratio from dietary phytol to milk phytanic acid was estimated to be only 2.6%. Conclusion: Phytanic acid content in cow's milk increases with increasing phytol content in diets. However, phytol might not be completely metabolized in the rumen and phytanic acid, in turn, might not be completely recovered into cow's milk. The change of phytanic acid content in milk may be positively correlated with the change of phytol in the diet within a short time.
dc.description.sponsorshipJapan Society for the Promo-tion of Science (JSPS) KAKENHI [26292138]; Grants-in-Aid for Scientific Research [26292138] Funding Source: KAKEN
dc.description.sponsorshipThis work was supported by the Japan Society for the Promo-tion of Science (JSPS) KAKENHI Grant Number 26292138.
dc.identifier.doi10.5713/ab.21.0086
dc.identifier.endpage1622
dc.identifier.issn2765-0189
dc.identifier.issn2765-0235
dc.identifier.issue10
dc.identifier.pmid34237930
dc.identifier.scopus2-s2.0-85114304003
dc.identifier.scopusqualityQ1
dc.identifier.startpage1616
dc.identifier.urihttps://doi.org/10.5713/ab.21.0086
dc.identifier.urihttps://hdl.handle.net/11480/16269
dc.identifier.volume34
dc.identifier.wosWOS:000691348700005
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAsian-Australasian Assoc Animal Production Soc
dc.relation.ispartofAnimal Bioscience
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectMilk
dc.subjectPhytanic Acid
dc.subjectPhytol
dc.subjectSilage
dc.titleEffect of phytol in forage on phytanic acid content in cow's milk
dc.typeArticle

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