Dinamika ponašanja prasadi iz različitih legala visokoplodnih krmača

master's thesis

• Title (english): Dynamics of the behavior of piglets from different legal parks of high-fertility sows
• Author: Mila Vidulin
• Mentor: Dubravko Škorput (mentor)
• Committee member: Dubravko Škorput (predsjednik povjerenstva)
• Committee member: Zoran Luković (član povjerenstva)
• Committee member: Krešimir Salajpal (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Animal Science and Technology); Zagreb
• Defense date and country: 2024-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Proces odbijanja predstavlja veliki izazov u proizvodnji svinja. To uključuje rano odvajanje prasadi od krmača, što rezultira naglim prelaskom u prehrani s mlijeka na posebno formuliranu hranu. Ovo složeno kombiniranje različitih legla u novu grupu, gdje svinje imaju ograničen prostor i mogućnosti za stalnu interakciju, što ih sprječava da u potpunosti pokažu prirodna agonistička ponašanja neophodna za uspostavljanje društvene hijerarhije. Ovo istraživanje imalo je za cilj istražiti kako spontano miješanje prasadi utječe na agresivno ponašanje prasadi tijekom procesa odbijanja. Video kamere korištene su za dokumentiranje dva boksa u uzgajalištu, a izravno promatranje korišteno je za procjenu broja interakcija između prasadi, uključujući i agresivno ponašanje i igru. U boksu I utvrđeno je da je prasad iz istog legla bila manje agresivna jedna prema drugima od prasadi iz različitih legala. Agresivnost je zabilježena 36 puta među prasadi iz istog legla i 62 puta među prasadi iz različitih legla. U usporedbi sa boksom I, u boksu II nije bilo velike razlike u agresivnom ponašanju između prasadi iz istog legla i prasadi iz različitih legla nakon miješanja. U oba boksa nije bilo statistički značajnih razlika u trajanju agresivnog ponašanja. Više napada zabilježeno je na početku miješanja, točnije u prva dva dana od miješanja.

Abstract (english)

The weaning process presents a significant challenge in pig production. It involves the early separation of piglets from sows, resulting in an abrupt transition from milk to specially formulated feed. This complex combination of different litters into a new group, where pigs have limited space and opportunities for constant interaction, prevents them from fully displaying natural agonistic behaviors necessary for establishing a social hierarchy. This study aimed to explore how spontaneous mixing of piglets affects aggressive behavior during the weaning process. Video cameras were used to document two pens in the breeding facility, and direct observation was employed to assess the frequency and duration of suckling as well as the number of interactions among piglets, including aggressive behavior and play. It was observed in Pen I that piglets from the same litter were less aggressive towards each other compared to piglets from different litters. Aggression was recorded 36 times among piglets from the same litter and 62 times among piglets from different litters. Compared to pen I, in pen II, there was no significant difference in aggressive behavior between piglets from the same litter and piglets from different litters after mixing. No significant differences were detected in attack duration between resident and mixed liiters. More attacks were recorded at the beginning of the mixing, specifically during the first two days after mixing.

• Keywords: svinje; dobrobit; odbiće; agresivno ponašanje
• Keywords (english): pigs; welfare; weaning; aggressive behavior
• Language: croatian
• URN:NBN: urn:nbn:hr:204:775732
• Study programme: Title: Production and Processing of Meat; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka proizvodnje i prerade mesa (magistar / magistra inženjer/inženjerka proizvodnje i prerade mesa)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2024-11-11 08:43:28