Compressive stresses on, and the strength of the inner and outer digits of pigs' feet, and the implications for injury and floor design

Webb, Nicole

doi:10.1016/s0021-8634(84)80008-6

Cited by 38 publications

(37 citation statements)

References 3 publications

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“…Most (78 %) of the weight of the pig is carried by the outer digits (56), and 80 % of foot lesions are found in the outer digits (5,30,56). The front feet carry 56 % of the body weight (18).…”

Section: Factors Which Play a Role In The Development Of Lameness Feamentioning

confidence: 99%

“…In the outer digits the greatest load is carried by the heel bulb and after that by the junction of heel bulb and the abaxial hoof wall, in the inner digits the greatest load is carried by the tip of the toe (56). Besides load distribution, the strength of the different parts of the foot also plays a role in the occurrence of foot lesions.…”

Section: Factors Which Play a Role In The Development Of Lameness Feamentioning

confidence: 99%

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Review of health problems in group‐housed sows, with special emphasis on lameness

Kroneman

Vellenga

Wilt

et al. 1993

Veterinary Quarterly

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Section: Factors Which Play a Role In The Development Of Lameness Feamentioning

confidence: 99%

Section: Factors Which Play a Role In The Development Of Lameness Feamentioning

confidence: 99%

Review of health problems in group‐housed sows, with special emphasis on lameness

Kroneman

Vellenga

Wilt

et al. 1993

Veterinary Quarterly

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“…Floor properties such as surface coefficient of friction (COF), abrasiveness and softness (Webb & Nilsson, 1983;Nilsson, 1988), and their interactions with the pig claw (Webb & Nilsson, 1983;Webb, 1984;Applegate et al, 1988;Thorup et al, 2007) are among the key factors in understanding the causes of slip and fall accidents (Redfern & DiPasquale, 1997;Hanson et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Gait and force analysis of provoked pig gait on clean and fouled rubber mat surfaces

Wachenfelt¹,

Nilsson²,

Pinzke³

2010

Biosystems Engineering

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Materials that increase floor friction forces in absorption of foot pressure could reduce the risk of slipping, i.e. promote walking safety. The effects of fouled rubber mat floor conditions on the gait of 10 pigs walking in a curve, using kinematics and kinetics to record gait parameters and slip frequency are described and compared with clean conditions. Pigs adapted to fouled floor condition through reduced walking speed (10%), prolonged swing and stance time and a higher number of 3-limb support phases, but kept stride length and diagonality constant. This adaption produced a threefold reduction in lateral horizontal forces and kept braking and propulsion forces constant, resulting in a constant peak utilised coefficient of friction (UCOF) level in fore limbs but a 31% reduction in UCOF in hind limbs.The better traction for pigs walking on rubber matting compared with concrete is due to a more effective transmission of forces from the limb to the elastomer, dissipating the forces into energy within the material, and thus impeding the effect of centripetal force, with less displacement of body centre of gravity and less forward and backward slip. Pig forward slip frequency on fouled rubber matting was 65 and 51% lower for fore and hind limbs respectively compared with pigs walking a curve on fouled concrete.The soft flooring material improved gait adaption and could thus improve walking safety.

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“…In swine, the lateral claws are wider (1.13:l) and longer (1.11:1) than the medial claws (Penny et al 1963) and a recent study of foot pressure patterns in swine of 9-1 07 kg body weight indicated that most weight was placed on the lateral bulb while the weight carried by the hoof wall was usually less than 30% of bulb load (Webb 1984). Fritschen (1980 reported that the area of the claw remained nearly constant during the f,rnishing period (55-100 kg) despite a doubling ofbody weight.…”

mentioning

confidence: 99%

“…Fritschen (1980 reported that the area of the claw remained nearly constant during the f,rnishing period (55-100 kg) despite a doubling ofbody weight. However, by compression and deformation of the bulb and hoof wall, floor contact area increased and a constant foot pressure was maintained over a wide range of bodyweights (Webb 1984).…”

mentioning

confidence: 99%

Effect of Floor Type on the Severity of Foot Lesions and Osteochondrosis in Swine

Brennan¹,

Aherne²

1987

Can. J. Anim. Sci.

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Compressive stresses on, and the strength of the inner and outer digits of pigs' feet, and the implications for injury and floor design

Cited by 38 publications

References 3 publications

Review of health problems in group‐housed sows, with special emphasis on lameness

Review of health problems in group‐housed sows, with special emphasis on lameness

Gait and force analysis of provoked pig gait on clean and fouled rubber mat surfaces

Effect of Floor Type on the Severity of Foot Lesions and Osteochondrosis in Swine

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