Reprodukcijske i proizvodne odlike ličke pramenke

undergraduate thesis

• Title (english): Reproduction and production characteristics of Lika Pramenka
• Author: Milana Žigić
• Mentor: Boro Mioč (mentor)
• Committee member: Boro Mioč (predsjednik povjerenstva)
• Committee member: Ante Kasap (član povjerenstva)
• Committee member: Valentino Držaić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Animal Science and Technology); Zagreb
• Defense date and country: 2024-09-18, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Lička pramenka autohtona je hrvatska pasmina ovaca koja se većinom uzgaja na području Like. Najčešće se uzgaja u ekstenzivnim i poluintenzivnim sustavima proizvodnje. Kombiniranih je proizvodnih svojstava, s tim da ju se u nekoliko posljednjih desetljeća najviše uzgaja za proizvodnju mesa (zaštićene ličke janjetine). Istraživanje je provedeno na dva obiteljska poljoprivredna gospodarstva, na ukupno 137 janjadi od janjenja do odbića, odnosno do prosječne dobi janjadi od dva mjeseca. Odmah nakon janjenja i utvrđivanja spola vaganjem je izmjerena porodna masa svakog janjeta, a zatim su vaganja ponovljena 30. i 60. dana kako bi se utvrdila tjelesna masa i izračunao prosječni dnevni prirast janjadi. Janjad je tijekom cijelog trajanje pokusa, nakon konzumiranog kolostruma hranjena mlijekom (sisanjem) te zajedno s ovcama (majkama) boravila na pašnjaku i konzumirala pašu s prirodnih ličkih livada i pašnjaka. Cilj istraživanja je bio utvrditi porodnu masu janjadi ličke pramenke, tjelesnu masu 30. i 60. dana te utvrditi povezanost između porodne mase i spola janjadi te veličine legla i utjecaja uzgajivača na istraživane pokazatelje. Prosječna porodna masa istraživanjima obuhvaćene janjadi ličke pramenke bila je 3,19 kg, a janjad je dnevno prosječno priraštala 0,249 kg. Statističkim analizama utvrđen je statistički značajan utjecaj spola (P<0,05), veličine legla (P<0,05), uzgajivača (P<0,05) te interakcije između uzgajivača i veličine legla (P<0,05) dok ostale interakcije nisu bile statistički značajne.

Abstract (english)

The Lika Pramenka sheep is an indigenous Croatian breed of sheep that is mostly bred in area of Lika. It is most often bred in extensive and semi-intensive production systems. Pramenka is multi-purpose sheep breed, but for the last few decades it is most often bred for meat production (the Lika lamb meat). This study was conducted at two family farms, in total at 137 lambs from lambing to weaning, up to the average age of lambs of two months. Immediately after lambing and gender determination, the birth weight of each lamb is measured by weighing, and then the weighning was repeated on the 30th and 60th day in order to determine the body weight and calculate the average daily gain. During the entire duration of the experiment, after consuming the colostrum, lambs were fed with milk (suckling) and together with the sheep (mothers) stayed in the pasture and consumed pasture from the natural Lika meadows and pastures. The aim of the research was to determine the birth weight of Lika Pramenka lambs, the body weight on the 30th and 60th days and to determine connection between the birth weight and the gender of the lambs and litter size and influence of the breeder on the investigated indicators. The average birth weight of Lika Pramenka lambs included in the research was 3,19 kg and lambs gained on average 0,249 kg per day. Statistical analyses revealed a statistically significant impact of gender (P<0,05), litter size (P<0,05), breeder (P<0,05) and interaction between breeder and litter size (P<0,05), but other interactions were not statistically significant.

• Keywords: lička pramenka; janjad; porodna masa; prirast
• Keywords (english): Lika Pramenka sheep; lambs; birth weight; daily gain
• Language: croatian
• URN:NBN: urn:nbn:hr:204:938727
• Study programme: Title: Animal Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka animalnih znanosti (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka animalnih znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-11-15 12:26:42