Feeding behavior of crossbred pigs reared intensively in Southeastern Nigeria.

Abstract

 The in situ feeding behavior of pigs was studied for a period of 18 weeks using 3 different but clinically healthy crossbred pigs of varying genotypes. Results showed that there was no marked difference in the pre-feeding, feeding and post-feeding behaviors of the different hybrids used. Observation of feeding behavior showed that all animals fed (picked feed) very intensively during the first 35 minutes of introduction of feed Other activities observed include playing/bullying drinking wallowing, social and courtship behaviors. Rooting and other behaviors like climbing of pen walls were also observed There was no significant difference (P>O.05) in time spent during ingestion (picking of feed) between LW x LC and LC x L crosses. However there was significant difference (P< O. 05) in time spent during ingestion between LWxLC with LWxL crosses, and LCxL with LWxL crosses The total feeding time was slightly higher O. 05) in LWxL than, either of the Other groups. Rooting time was slightly lower in LWx L crosses than in any other group. Total time spent on other major activities like drinking wallowing, playing/ bullying, social/courtship behaviors was slightly higher (P < 0.05) in LWxLC and LWxL than LWxLC crosses. Knowledge of animal behavior is important for improved productivity as well as animal welfare since q deviation from the normal behavior is an indication of ill health.