Morphology, adipocyte size, and fatty acid analysis of dairy cattle digital cushions, and the effect of body condition score and age

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dc.citation.issue5
dc.citation.volume104
dc.contributor.authorNewsome RF
dc.contributor.authorMostyn A
dc.contributor.authorWilson JP
dc.contributor.authorAlibhai A
dc.contributor.authorBollard N
dc.contributor.authorRandall L
dc.contributor.authorChagunda MGG
dc.contributor.authorSturrock CJ
dc.contributor.authorKeane M
dc.contributor.authorGreen M
dc.contributor.authorHuxley JN
dc.contributor.authorRutland CS
dc.coverage.spatialUnited States
dc.date.accessioned2023-12-04T02:02:16Z
dc.date.accessioned2024-07-25T06:38:52Z
dc.date.available2021-03-06
dc.date.available2023-12-04T02:02:16Z
dc.date.available2024-07-25T06:38:52Z
dc.date.issued2021-05
dc.description.abstractThe digital cushion is an essential part of maintaining a healthy foot, working to dissipate foot strike and body weight forces and lameness from claw horn disruption lesions. Despite the importance of the digital cushion, little is known about the basic anatomy, adipocyte morphology, and fatty acid composition in relation to age, limb position, and body condition score. In total, 60 claws (from 17 cows) were selected and collected from a herd, ensuring that body condition score data and computed micro-tomography were known for each animal. Digital cushion tissue underwent histological staining combined with stereology, systematic random sampling, and cell morphology analysis, in addition to lipid extraction followed by fatty acid analysis. The results describe digital cushion architecture and adipocyte sizes. Adipocyte size was similar across all 4 claws (distal left lateral and medial and distal right lateral and medial) and across the ages (aged 2–7 yr); however, animals with body condition score of 3.00 or more at slaughter had a significantly increased cell size in comparison to those with a score of less than 2.50. Of 37 fatty acid methyl esters identified, 5 differed between either the body condition score or different age groups. C10:0 capric acid, C14:0 myristic acid, C15:0 pentadecanoic acid, and C20:0 arachidic acid percentages were all lesser in lower body condition score cows, whereas C22:1n-9 erucic acid measurements were lesser in younger cows. Saturated fatty acid, monounsaturated fatty acid, and polyunsaturated fatty acid percentages were not altered in the different claws, ages, or body condition score groups. Triglyceride quantities did not differ for claw position or age but had decreased quantities in lower body condition score animals. Digital cushion anatomy, cellular morphology, and fatty acid composition have been described in general and also in animals with differing ages, body condition scores, and in the differing claws. Understanding fat deposition, mobilization, and composition are essential in not only understanding the roles that the digital cushion plays but also in preventing disorders and maintaining cattle health and welfare.
dc.format.pagination6238-6252
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/33685700
dc.identifier.citationNewsome RF, Mostyn A, Wilson JP, Alibhai A, Bollard N, Randall L, Chagunda MGG, Sturrock CJ, Keane M, Green M, Huxley JN, Rutland CS. (2021). Morphology, adipocyte size, and fatty acid analysis of dairy cattle digital cushions, and the effect of body condition score and age.. J Dairy Sci. 104. 5. (pp. 6238-6252).
dc.identifier.doi10.3168/jds.2020-19388
dc.identifier.eissn1525-3198
dc.identifier.elements-typejournal-article
dc.identifier.issn0022-0302
dc.identifier.piiS0022-0302(21)00246-0
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70606
dc.languageeng
dc.publisherElsevier Inc and Fass Inc on behalf of the American Dairy Science Association
dc.relation.isPartOfJ Dairy Sci
dc.rights(c) 2021 The Author/s
dc.rightsCC BY
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectadipocyte
dc.subjectbody condition score
dc.subjectbovine lameness
dc.subjectdigital cushion
dc.subjectfatty acid
dc.subjectAdipocytes
dc.subjectAnimals
dc.subjectCattle
dc.subjectCattle Diseases
dc.subjectFatty Acids
dc.subjectFemale
dc.subjectFoot Diseases
dc.subjectLameness, Animal
dc.titleMorphology, adipocyte size, and fatty acid analysis of dairy cattle digital cushions, and the effect of body condition score and age
dc.typeJournal article
pubs.elements-id441866
pubs.organisational-groupOther
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