Naslov (srp)

Uticaj telesne mase, nivoa triptofana i određenih faktora sredine na ponašanje i proizvodne rezultate prasadi u periodu zalučenja : doktorska disertacija

Autor

Živković, Vladimir, 1987-

Doprinosi

Savić, Radomir, 1979-
Gogić, Marija, 1983-
Stanković, Branislav, 1965-
Radović, Čedomir, 1976-
Hristov, Slavča, 1960-

Opis (eng)

According to the set goal, the research was carried out at the experimental farm of theInstitute for Animal Husbandry, Belgrade - Zemun. The research included 432 reared piglets ofboth sexes, Large White and Swedish Landrace breeds, as well as their crossbreeds. Piglets wereintroduced into the research after weaning (at the age of 30 days) when their body weights weremeasured. Homogeneous groups were formed based on body mass and gender (except in the trialwith uneven body mass). There were 7 individuals in each group (4 male and 3 female pigs),except in the third treatment when the influence of population density was examined. Theexaminations lasted until the sixth day after the mixing when the final measurement of bodyweight took place. All treatments were based on the formation of 4 groups of piglets - control(KG) and test groups (IG1, IG2 and IG3) according to the following schedule: in the firsttreatment, L-tryptophan was used as an addition to the complete mixture in 3 differentconcentrations (for IG1, IG2 and IG3 , respectively: 0.1%, 0.2% and 0.3% in starter-mixturesstarting 10 days before introduction into the experiment and during the research); in the secondtreatment, the influence of lighting intensity was monitored (KG - 60 lx, increased lighting forIG1 and IG2 - 100 and 150 lx, and reduced lighting for IG3 - 40 lx); in the third treatment, theinfluence of population density was examined (KG -7, increased population density for IG3 andIG2 – 11 and 9 piglets, decreased for IG1 – 5 piglets in a cage); in the fourth, the influence ofbody weight was monitored (KG - 7 piglets of similar body weight, for IG1 - 2 heavier and 5lighter piglets, for IG2 - 3 heavier and 4 lighter piglets, and IG3 - 5 heavier and 2 lighter piglets);and in the fifth treatment, the influence of environmental enrichment (a red ball with arms with adiameter of 10 cm (IG1), cotton ropes 40 cm long suspended from the sides of the cage (IG2)and straw 200g per day on the full part of the floor (IG3)) on behavior and production results wasexamined. During the experiment, production parameters (food consumption, daily gain and feedconversion), complete behaviour (using cameras) and blood parameters (Pig-MAP, lactates andhaptoglobin) were monitored. The addition of tryptophan to the standard farm mixture did notsignificantly affect the production parameters and the blood parameters, but it had a positiveeffect on changing the behaviour patterns of the piglets. Different lighting regimes did not affectthe production parameters and behaviour of piglets, but they affected (p<0.05) the concentrationof lactate in the blood. Increased population density had a significant positive effect onproduction parameters (average daily gain and feed conversion) (p<0.05), on Pig-Mapconcentration in blood (p<0.05; p<0.01), while it had a negative effect on the aggression andbiting in piglets (p<0.05). Body mass significantly and very significantly influenced theconcentration of Pig-MAP (p<0.05; p<0.01) and lactate (p<0.05) between the studied groups.Environment enrichment had a significant effect (p<0.05) on the reduction of the number ofconflicts and biting between the examined groups of piglets. Straw proved was the bestmanipulative material in the experiment. Enrichment of the environment had a positive effect(p<0.05) on the improvement of affective states in piglets during the first 24 hours after theformation of groups.

Opis (srp)

Istraživanje je sprovedeno prema postavljenom cilju na eksperimentalnoj farmi Institutaza stočarstvo, Beograd - Zemun. Istraživanje je obuhvatalo 432 zalučene prasadi oba pola, rasaveliki jorkšir i švedski landras, kao i meleze tih rasa. Prasad su uvedena u istraživanje nakonodbijanja (u starosti od 30 dana), kada su izmerene telesne mase. Na osnovu telesne mase i polasu formirane homogene grupe (osim u tretmanu sa neujednačenim telesnim masama). U svakojgrupi je bilo po 7 jedinki (4 muška i 3 ženska praseta), osim u trećem tretmanu, kada je bioispitivan uticaj gustine naseljenosti. Ispitivanja su trajala do šestog dana po zalučenju, kada jebilo i završno merenje telesne mase. Svi tretmani podrazumevali su formiranje 4 grupe prasadi -kontrolna (KG) i ispitivane grupe (IG1, IG2 i IG3) prema sledećem rasporedu: u prvom tretmanukoristio se L-triptofan kao dodatak potpunoj smeši u 3 različite koncentracije (za IG1, IG2 i IG3,redom: 0,1%, 0,2% i 0,3% u starter-smešama sa početkom od 10 dana pre uvođenja uistraživanje i tokom trajanja istraživanja); u drugom tretmanu se pratio uticaj intenzitetaosvetljenja (KG - 60 lx, pojačano osvetljenje za IG1 i IG2 - 100 i 150 lx, redom, i smanjenoosvetljenje za IG3 - 40 lx); u trećem tretmanu je bio ispitivan uticaj gustine naseljenosti (KG -7,povećana gustina naseljenosti za IG3 i IG2 – 11 i 9 prasadi, smanjena za IG1 – 5 prasadi ukavezu); u četvrtom se pratio uticaj telesne mase (KG – 7 prasadi približne telesne mase, za IG1– 2 teža i 5 lakših prasadi, za IG2 - 3 teža i 4 lakša praseta, i IG3 - 5 težih i 2 lakša praseta); i upetom tretmanu se ispitivao uticaj obogaćenja sredine (crvena lopta prečnika 10 cm sa kracima(IG1), pamučna užad dužine 40 cm okačena za stranice kaveza (IG2) i slama 200g dnevno napunom delu poda (IG3)) na ponašanje i proizvodne rezultate. Tokom istraživanja praćeni suprozvodni parametri (konzumacija hrane, dnevni prirast i konverzija hrane), kompletnoponašanje (pomoću kamera) i parametri krvi (Pig-MAP, laktati i haptoglobin).Dodatak triptofana u standardnu farmsku smešu nije značajno uticao na proizvodne parametre ina parametre krvi, ali je imao pozitivan efekat na izmenu obrazaca ponašanja kod prasadi.Različiti intenziteti osvetljenja nisu značajno uticali na proizvodne parametre i ponašanje kodprasadi, ali su značajno uticali (p<0,05) na koncentraciju laktata u krvi. Povećana gustinanaseljenosti je značajno pozitivno uticala na proizvodne parametre (prosečan dnavni prirast ikonverziju hrane) (p<0,05) i na koncentraciju Pig-Map-a u krvi (p<0,05; p<0,01), dok jenegativno uticala na pojavu agresije i griže kod prasadi (p<0,05). Telesna masa je značajno iveoma značajno uticala na koncentraciju Pig-MAP-a (p<0,05; p<0,01) i laktata (p<0,05) izmeđuispitivanih grupa. Obogađivanje sredine je značajno uticalo (p<0,05) na smanjenje brojakonflikata i griže između ispitivanih grupa prasadi. Slama se pokazala kao najbolji material zaobogaćivanje sredine u istraživanju. Obogaćivanje sredine je pozitivno uticalo (p<0,05) napoboljšanje aftektivnih stanja kod prasadi tokom prvih 24 časa nakon formiranja grupa.

Opis (srp)

Biotehničke nauke - Odgajivanje i reprodukcija domaćih životinja / Biotechnical sciencesSpecialisation - Reproduction of Domestic and Raised Animals Datum odbrane: 01.06.2023.

Jezik

srpski

Datum

2023

Licenca

Ovo delo je licencirano pod uslovima licence
Creative Commons CC BY-NC 3.0 AT - Creative Commons Autorstvo - Nekomercijalno 3.0 Austria License.

http://creativecommons.org/licenses/by-nc/3.0/at/legalcode

Predmet

OSNO - Opšta sistematizacija naučnih oblasti, Gajenje i nega domaćih životinja uopšte

pig, piglets, behaviour, production parameters, weaning, environment, tryptophane

OSNO - Opšta sistematizacija naučnih oblasti, Gajenje i nega domaćih životinja uopšte

svinje, prasad, ponašanje, proizvodni parametri, zalučenje, okolina, triptofan

636.4.081(043.3)