Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion Scores
The objective of the present study was to investigate the mechanical indices of hoof horn and their association with length measurements and lesion score. The feet of 185 culled sows from three Greek farms (A: 57 sows; B: 64 sows; C: 64 sows) were used. A slice from the dorsal wall of each claw was...
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MDPI AG
2021-08-01
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| Series: | Veterinary Sciences |
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| Online Access: | https://www.mdpi.com/2306-7381/8/9/175 |
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| author | Sofia Chalvatzi Georgios A. Papadopoulos Fotios Kroustallas Mihaela Cernat Vassilis Skampardonis Christina Marouda Vasileia Fotiadou Vasileios Psychas Theofilos Poutahidis Leonidas Leontides Paschalis Fortomaris |
| author_facet | Sofia Chalvatzi Georgios A. Papadopoulos Fotios Kroustallas Mihaela Cernat Vassilis Skampardonis Christina Marouda Vasileia Fotiadou Vasileios Psychas Theofilos Poutahidis Leonidas Leontides Paschalis Fortomaris |
| author_sort | Sofia Chalvatzi |
| collection | DOAJ |
| description | The objective of the present study was to investigate the mechanical indices of hoof horn and their association with length measurements and lesion score. The feet of 185 culled sows from three Greek farms (A: 57 sows; B: 64 sows; C: 64 sows) were used. A slice from the dorsal wall of each claw was used to assess by a three-point bending test the Young’s modulus, yield stress and aximum stress values. The available data from a companion study (part 1) on the length measurements and lesion scores of the claws were used to reveal possible relationships. The Young’s modulus values were significantly higher (<i>p</i> < 0.001 or <i>p</i> < 0.01 depending on location of claw) in the sows of farm C compared to those in sows of farms A and B and in sows of farm B compared to those in the sows of farm A. Yield and maximum stress values were significantly higher (<i>p</i> < 0.05 or <i>p</i> < 0.001 depending on the location of the claw) in the sows of farm C compared to those in the sows of farm A and in the sows of farm B compared to those in the sows of farm A. An increase in heel-sole length decreased all mechanical indices. Young’s modulus and yield stress were associated with wall lesion severity while maximum stress with wall and heel lesion severity. Overall, we conclude that mechanical efficiency deteriorates as length and lesion score increases. |
| first_indexed | 2024-03-10T07:09:11Z |
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| issn | 2306-7381 |
| language | English |
| last_indexed | 2024-03-10T07:09:11Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Veterinary Sciences |
| spelling | doaj.art-f9760b229dce4e498598e4ff0568ff372023-11-22T15:35:44ZengMDPI AGVeterinary Sciences2306-73812021-08-018917510.3390/vetsci8090175Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion ScoresSofia Chalvatzi0Georgios A. Papadopoulos1Fotios Kroustallas2Mihaela Cernat3Vassilis Skampardonis4Christina Marouda5Vasileia Fotiadou6Vasileios Psychas7Theofilos Poutahidis8Leonidas Leontides9Paschalis Fortomaris10Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceDepartment of Epidemiology, Biostatistics and Economics of Animal Production, School of Veterinary Medicine, University of Thessaly, 43132 Karditsa, GreeceDepartment of Epidemiology, Biostatistics and Economics of Animal Production, School of Veterinary Medicine, University of Thessaly, 43132 Karditsa, GreeceLaboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceDepartment of Epidemiology, Biostatistics and Economics of Animal Production, School of Veterinary Medicine, University of Thessaly, 43132 Karditsa, GreeceLaboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceThe objective of the present study was to investigate the mechanical indices of hoof horn and their association with length measurements and lesion score. The feet of 185 culled sows from three Greek farms (A: 57 sows; B: 64 sows; C: 64 sows) were used. A slice from the dorsal wall of each claw was used to assess by a three-point bending test the Young’s modulus, yield stress and aximum stress values. The available data from a companion study (part 1) on the length measurements and lesion scores of the claws were used to reveal possible relationships. The Young’s modulus values were significantly higher (<i>p</i> < 0.001 or <i>p</i> < 0.01 depending on location of claw) in the sows of farm C compared to those in sows of farms A and B and in sows of farm B compared to those in the sows of farm A. Yield and maximum stress values were significantly higher (<i>p</i> < 0.05 or <i>p</i> < 0.001 depending on the location of the claw) in the sows of farm C compared to those in the sows of farm A and in the sows of farm B compared to those in the sows of farm A. An increase in heel-sole length decreased all mechanical indices. Young’s modulus and yield stress were associated with wall lesion severity while maximum stress with wall and heel lesion severity. Overall, we conclude that mechanical efficiency deteriorates as length and lesion score increases.https://www.mdpi.com/2306-7381/8/9/175sow’s clawhoof hornYoung’s modulusyield stressmaximum stress |
| spellingShingle | Sofia Chalvatzi Georgios A. Papadopoulos Fotios Kroustallas Mihaela Cernat Vassilis Skampardonis Christina Marouda Vasileia Fotiadou Vasileios Psychas Theofilos Poutahidis Leonidas Leontides Paschalis Fortomaris Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion Scores Veterinary Sciences sow’s claw hoof horn Young’s modulus yield stress maximum stress |
| title | Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion Scores |
| title_full | Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion Scores |
| title_fullStr | Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion Scores |
| title_full_unstemmed | Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion Scores |
| title_short | Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 2: Mechanical Indices of Hoof Horn and Their Associations with Length Measurements and Lesion Scores |
| title_sort | claw characteristics of culled sows from three farrow to finish greek farms part 2 mechanical indices of hoof horn and their associations with length measurements and lesion scores |
| topic | sow’s claw hoof horn Young’s modulus yield stress maximum stress |
| url | https://www.mdpi.com/2306-7381/8/9/175 |
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