ea ioseba valencia,luismiguel armendariz, anton pascual, xabier archanco y iosu zuñiga
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THE INFLUENCE OF FEEDERS TYPE AND THE METHOD OF GROUP ALLOCATION IN PIGLETS GROWTH
Valencia Urdín, JosebaPascual Guzmán, AntónArchanco Urroz, Xabier
Armendáriz López, Luismiguel
INDEX INTRODUCTION OBJETIVES MATERIAL AND METHODS RESULTS DISCUSSION
INTRODUCTION After weaning piglets growth is stopped
1- Change: suckled ate fodder
2- The aggressiveness between the piglets
Reduced spaces and mixed piglets from different litters, higher aggressiveness
The voluntary food intake is stimulated when piglets eat with water.
Littermate Non-littermate
“Wet and dry” single-space feeders Multi-space feeders “Dry” single-space feeders
In single-space feeders decrease the fightings
Most secure and less fights, we think that more food are intake
Disadvantages of the single-space feeders is that more food is wasted.
Piglets are weighted and the food intake is measured weekly.
OBJETIVES Observing the differences in piglets growth
among:
The differents types of feedders
The differents types of group allocation
MATERIAL AND METHODS
Piglets with 30 days and 9 kg were housed in groups of nine.
Six kinds of groups were studied: “Wet and dry” single-space feeders with littermate
piglets. “Wet and dry” single-space feeders with mixed litter
piglets. “Dry” single-space feeders with littermate piglets. “Dry” single-space feeders with mixed litter piglets. Multi-space feeders with littermate piglets. Multi-space feeders with mixed litter piglets.
Four weeks:
The two first weeks different diet for the two following weeks
RESULTS1) In the first week “Wet and dry” single-space
feeders less growth than “dry” single-space feeders and multi-space feeders.
2) Multi-space feeders more food intake than a single-space feeder.
3) But the differences in intakes between pens were high too because of other causes.
DISCUSSION “wet and dry” single-space feeders eat more
doesn’t increase piglets growth
Single-space feeders and multi-space feeders have similar growth.
There are two possibilities that explain:1- Complicated interaction between piglets and feeders. 2- Older pigs are more receptive to different forms of feeding
than piglets.
Few hours, vigorous fights Non-littermate piglets
After 48 h., occasional fights.
Piglets than littermates haven’t fights Non-littermate piglets, growth faster in the first 14 days
than littermate piglets
No differences between “wet and dry” and “dry” single spaces feeders.
Non-littermate piglets fight more and intake more food than littermate piglets.