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Temporal analysis of feeding behavior in miniature pigs
F Musial1, A Kowalski, K T Kalveram
1Dept. of General Psychology, Heinrich-Heine-University Düsseldorf, Germany.
Summary
Miniature pigs synchronized feeding behaviors when housed together, with significant energy intake occurring during dark cycles. This study highlights reliable methods for observing ingestive behaviors in pigs.
Area of Science:
- Animal Behavior
- Nutritional Science
- Animal Husbandry
Background:
- Understanding feeding patterns in miniature pigs is crucial for optimizing animal welfare and research outcomes.
- Previous research has limitations in accurately quantifying ingestive behaviors in group-housed pigs.
Purpose of the Study:
- To analyze the temporal patterns and synchronization of feeding behavior in group-housed miniature pigs.
- To evaluate a novel computer-controlled system for precise measurement of ingestive behavior.
Main Methods:
- Observation of four Munich miniature pigs (29-43 kg) housed in pairs over two weeks.
- Utilized a computer-controlled recording system with feeders for precise food release per response.
- Applied Walsh-Fourier Spectral Analysis to investigate temporal feeding patterns and synchronization.
Main Results:
- Pigs consumed up to 48% of daily energy intake during the dark cycle.
- A substantial reduction in food intake was observed from week 1 to week 2.
- Synchronized feeding behavior between paired pigs increased from week 1 to week 2.
Conclusions:
- The computer-controlled recording system is a reliable and valid tool for investigating ingestive behaviors in miniature pigs.
- Group-housed miniature pigs exhibit synchronized feeding patterns, particularly during the dark cycle.
- Feeding behavior can change significantly over short periods in this species.