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Establishing Bedding Requirements on Trailers Transporting Market Weight Pigs in Warm Weather.

Kephart R, Johnson A, Sapkota A, Stalder K, McGlone J - Animals (Basel) (2014)

Bottom Line: Bedding did not affect surface temperature, vocalizations, or slips and falls (p = 0.58, p = 0.50, and p = 0.28, respectively).Within the context of these experiments, bedding level did not result in deleterious effects on pig measures or transport losses.However, using more bedding may result in higher costs to the industry.

View Article: PubMed Central - PubMed

Affiliation: Department of Animal Science, Iowa State University, Ames, IA 50011, USA. rkdavis@iastate.edu.

ABSTRACT
During warm weather, incorrect bedding levels on a trailer transporting market weight pigs may result in heat stress, fatigue, and death. Two experiments were conducted in June and July of 2011; Experiment 1 used 80 loads (n = 13,887 pigs) to determine the effects of two bedding levels (3 (68.1 kg) or 6 bags (136.2 kg) of wood shavings/trailer [each bag contained 22.7 kg, 0.2 m³]) on pig measures (surface temperature, vocalizations, slips and falls, and stress signs). Experiment 2 used 131 loads (n = 22,917 pigs) to determine the effects of bedding (3 vs. 6 bags) on transport losses (dead, sum of dead- and euthanized- on arrival; non-ambulatory, sum of fatigued and injured; total transport losses sum of dead and non-ambulatory). Bedding did not affect surface temperature, vocalizations, or slips and falls (p = 0.58, p = 0.50, and p = 0.28, respectively). However, pigs transported on 6 bags/trailer had 1.5% more stress signs than pigs transported on 3 bags/trailer (p < 0.01). No differences were observed between bedding levels for non-ambulatory, dead, or total transport losses (p = 0.10, p = 0.67, and p = 0.34, respectively). Within the context of these experiments, bedding level did not result in deleterious effects on pig measures or transport losses. However, using more bedding may result in higher costs to the industry. Therefore, 3 bags of bedding/trailer may be used when transporting market weight pigs during warm weather in the Midwestern U.S.

No MeSH data available.


Related in: MedlinePlus

Experiment 2. Effects of THI at loading on total transport losses (p = 0.01; R2 = 0.08).
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animals-04-00476-f005: Experiment 2. Effects of THI at loading on total transport losses (p = 0.01; R2 = 0.08).

Mentions: No effects were observed for THI at loading and of the number of non-ambulatory recorded at the plant (p = 0.51, R2 = 0.03; data not presented). However, it was observed that as THI at loading increased from ~19 to 24, dead and total transport losses increased by 3 pigs/trailer (p = 0.01, Figure 4 and Figure 5 respectively).


Establishing Bedding Requirements on Trailers Transporting Market Weight Pigs in Warm Weather.

Kephart R, Johnson A, Sapkota A, Stalder K, McGlone J - Animals (Basel) (2014)

Experiment 2. Effects of THI at loading on total transport losses (p = 0.01; R2 = 0.08).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4494312&req=5

animals-04-00476-f005: Experiment 2. Effects of THI at loading on total transport losses (p = 0.01; R2 = 0.08).
Mentions: No effects were observed for THI at loading and of the number of non-ambulatory recorded at the plant (p = 0.51, R2 = 0.03; data not presented). However, it was observed that as THI at loading increased from ~19 to 24, dead and total transport losses increased by 3 pigs/trailer (p = 0.01, Figure 4 and Figure 5 respectively).

Bottom Line: Bedding did not affect surface temperature, vocalizations, or slips and falls (p = 0.58, p = 0.50, and p = 0.28, respectively).Within the context of these experiments, bedding level did not result in deleterious effects on pig measures or transport losses.However, using more bedding may result in higher costs to the industry.

View Article: PubMed Central - PubMed

Affiliation: Department of Animal Science, Iowa State University, Ames, IA 50011, USA. rkdavis@iastate.edu.

ABSTRACT
During warm weather, incorrect bedding levels on a trailer transporting market weight pigs may result in heat stress, fatigue, and death. Two experiments were conducted in June and July of 2011; Experiment 1 used 80 loads (n = 13,887 pigs) to determine the effects of two bedding levels (3 (68.1 kg) or 6 bags (136.2 kg) of wood shavings/trailer [each bag contained 22.7 kg, 0.2 m³]) on pig measures (surface temperature, vocalizations, slips and falls, and stress signs). Experiment 2 used 131 loads (n = 22,917 pigs) to determine the effects of bedding (3 vs. 6 bags) on transport losses (dead, sum of dead- and euthanized- on arrival; non-ambulatory, sum of fatigued and injured; total transport losses sum of dead and non-ambulatory). Bedding did not affect surface temperature, vocalizations, or slips and falls (p = 0.58, p = 0.50, and p = 0.28, respectively). However, pigs transported on 6 bags/trailer had 1.5% more stress signs than pigs transported on 3 bags/trailer (p < 0.01). No differences were observed between bedding levels for non-ambulatory, dead, or total transport losses (p = 0.10, p = 0.67, and p = 0.34, respectively). Within the context of these experiments, bedding level did not result in deleterious effects on pig measures or transport losses. However, using more bedding may result in higher costs to the industry. Therefore, 3 bags of bedding/trailer may be used when transporting market weight pigs during warm weather in the Midwestern U.S.

No MeSH data available.


Related in: MedlinePlus