Agricultural and Biosystems Engineering Publications

Campus Units

Agricultural and Biosystems Engineering

Document Type

Article

Publication Version

Published Version

Publication Date

2000

Journal or Book Title

Transactions of the ASAE

Volume

42

Issue

2

First Page

433

Last Page

438

Abstract

This study quantifies responses of isowean pigs (10 to 12 days of age, PIC breed) to potential in-transit temperature fluctuations for 54 h, followed by a 14-day growth period under thermoneutrality. The 54-h temperature regimens included a constant air temperature of 26.7°C (as control) and three cyclic air temperatures of 26.7 ± 2.8°C, 26.7 ± 5.6°C and 26.7 ± 8.3°C, all using woodshavings bedding atop rigid board insulation. The pigs received an average dosage of 0.91 kg/pig water replacement supply during the 54-h treatment period, and ad-libitum feeding and watering during the growth period. Pigs in all three treatments and the control had similar growth performance, physiological, and energetic responses during both treatment and growth periods. At the end of the treatment period, the pigs had elevated concentrations of hematocrit, plasma protein, blood urea nitrogen, sodium and chloride, but declined concentration of glucose (P < 0.05). Potassium and bicarbonate levels remained relatively constant (P > 0.05). Concentrations of the blood constituents returned to normal during the growth period. The results suggest that the isowean pigs respond well to air temperature fluctuations of up to ±8.3°C around the thermoneutral condition of 26.7°C air temperature coupled with woodshavings bedding.

Comments

This article is from Transactions of the ASAE 43, no. 2 (2000): 433–438.

Access

Open

Copyright Owner

American Society of Agricultural Engineers

Language

en

File Format

application/pdf

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