Title

Nursery pig behavior evaluation pre-and post injection using digital-image methodology

Campus Units

Animal Science, Veterinary Diagnostic and Production Animal Medicine

Document Type

Article

Publication Date

2018

Journal or Book Title

Journal of Swine Health and Production

Volume

26

Issue

1

First Page

25

Last Page

33

Abstract

Objectives: To determine if nursery pigs display different behaviors and postures pre- and post injection during the human-approach paradigm using a digital photographic image.

Materials and methods: A digital camera captured an image of nursery pigs in a pen during a human-approach paradigm at two time points, pre- and post injection, with three different treatments. A total of 149 pens containing crossbred, mixed-sexed nursery pigs 42 days of age were used. Each pen of pigs was randomly assigned to one of three injection treatments: Vaccine A (saline administered on day 28 and Vaccine A on day 43); Vaccine B (vaccine administered days 28 and 43); and saline (VSAL; saline administered on days 28 and 43). All pigs were classified as Touched, Oriented, or Not Oriented. Pigs classified as Not-Oriented were further delineated into four postures and two behaviors. Within behavioral categories, snout and tail-base distances from the human were measured.

Results: There were no pre-injection pen behavioral differences. Fewer Vaccine B-treated pens were classified as Touched compared to Vaccine A- and VSAL-treated pens. Regardless of treatment, more pigs were Not Oriented post injection than pre-injection. Fewer Vaccine B-treated pigs stood than did other treatments. Vaccine B-treated pigs had the greatest snout and tail-base distances from the human.

Implication: It is important to establish the age of the nursery pigs and the vaccine with which they are treated when conducting an on-farm assessment using a human-approach paradigm.

Comments

This is an article from Weimer, Shawna L., Thomas J. Fangman, Locke A. Karriker, Kenneth J. Stalder, and Anna K. Johnson. "Nursery pig behavior evaluation pre-and post injection using digital-image methodology." Journal of Swine Health and Production 26, no. 1 (2018): 25-33. Posted with permission.

Copyright Owner

American Association of Swine Veterinarians

Language

en

File Format

application/pdf

Share

COinS