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HomePigSow conduct throughout introduction to a big dynamic group - Swine abstracts

Sow conduct throughout introduction to a big dynamic group – Swine abstracts


Sows in an intensive setting preserve small, secure matrilineal social teams comprised of acquainted, and sometimes genetically associated, conspecifics. Offering circumstances in an intensive farm setting which permit related social teams might cut back aggression by permitting acquainted sows to learn from a longtime dominance order. Provided that aggression ranges amongst breeding sows peak instantly following introduction to a bunch pen, this examine used a 2 × 2 factorial design to guage whether or not the extent of familiarity amongst a small cohort, or technique of introduction into a bigger dynamic pen influenced the prevalence of aggressive conduct involving newly launched sows. Therapies included mixtures of sows both premixed for seven days previous to pen introduction or having no contact previous to pen introduction and getting into the pen alone or getting into the pen as a batch. Sows have been monitored by focal video for one hour after getting into the pen.


Evaluation of aggressive occasions yielded a major interplay between degree of familiarity and technique of introduction. Familiarity had no impact when sows entered the pen as people whereas sows having no contact previous to pen introduction getting into the pen as a batch participated in essentially the most aggressive occasions and sows premixed for seven days previous to pen introduction getting into the pen as a batch participated within the fewest aggressive occasions. General, sows getting into the pen alone carried out extra retreats than sows getting into the pen as a batch. Sows premixed for seven days previous to pen introduction spent extra time mendacity with different sows in comparison with sows having no contact previous to pen introduction. Sows premixed for seven days previous to pen introduction and getting into as a batch exhibited extra nosing of different sows than their premixed, getting into as a person counterparts.


These findings counsel that if small teams of sows are allowed to freely work together with one another previous to mixing into a bigger dynamic group, even for as little as seven days, they’ll transition into the brand new social group with decreased charges of dangerous aggressive behaviors and elevated charges of affiliative behaviors. Future work ought to examine whether or not premixed breeding teams preserve social affiliation all through gestation, and thus, set up long-term subgroups throughout the bigger pen.

Kranz VA, Horback KM, Parsons TD, Pierdon MK. Sow conduct throughout introduction to a big dynamic group is influenced by familiarity and technique. Utilized Animal Behaviour Science. 2022; 250: 105624. https://doi.org/10.1016/j.applanim.2022.105624.

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