Uporabnost dorper pasme v gospodarskih križanjih ovc

diplomsko delo

Naja Baša (Author), Vida Rezar (Reviewer), Mojca Simčič (Mentor)

Abstract

Dorper je sestavljena pasma ovc, nastala v Južni Afriki zaradi potreb po jagnjetih z boljšimi klavnimi lastnostmi. V zadnjih letih se je v Sloveniji povečalo število živali te pasme. Ovne uporabljajo za gospodarsko križanje z ovcami drugih pasem. Živali dorper pasme imajo telo bele barve in črno glavo. Obstajajo tudi živali, ki so v celoti bele. Posebnsot pasme je, da jim volna sama odpade in jih ni potrebno striči. Pasma je celoletno poliestrična. Ob pregledu literature smo ugotovili, da imajo potomci, ki so rezultat križanj pasem gymsi racka, garut, red maasai, romanovska, oplemenjena jezersko-solčavska in istrska pramenka z dorper (terminalno pasmo), boljše klavne lastnosti. Osredotočili smo se na lastnosti: rojstna masa, dnevni prirast, masa hladnih klavnih polovic, klavnost, klasifikacija klavnih trupov, konformacija in zamaščenost. Zaradi hitre rasti so križanci nagnjeni k zamaščenosti, zato so primerni za zakol pri manjši telesni masi.

Keywords

drobnica;ovce;gospodarsko križanje;dorper pasma;klavne lastnosti;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[N. Baša]
UDC:	636.3(043.2)
COBISS:	165264131
Views:	976
Downloads:	49
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Usefulness of the Dorper breed in commercial crossbreeding
Secondary abstract:	The Dorper is a synthetic breed of sheep created in South Africa due to the need for lambs with higher carcass quality. In recent years, the population of this breed has increased in Slovenia. The rams are used for commercial crossbreeding with ewes of other breeds. Dorper animals have a white body and a black head. There are also completely white animals. The special feature of the breed is that their wool falls off by itself and they do not need to be sheared. The breed can be bred all year round. A review of the literature has shown that the offspring of crosses of the Gymesi Racka, Garut, Red Maasai, Romanov, Improved Jezersko-Solčava and Istrian Pramenka breeds with the Dorper (terminal) breed have higher carcass quality. We focused on the following traits: birth weight, daily gain, cold carcass weight, carcass categorization and fatness score. Due to their fast growth, crossbred lambs can be fattened early and are therefore suitable for slaughter at a lower body weight.
Secondary keywords:	small ruminants;sheep;commercial crossbreeding;Dorper;carcass traits;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za zootehniko
Pages:	1 spletni vir (1 datoteka PDF (VII, 19 str.))
ID:	19956493