Farklı Dozlarda İmmunokostrasyon Aşı Uygulamasının Entansif Koşullarda Yetiştirilen Holstein Erkek Danalarının Besi Performansı Üzerine Etkisi

Year 2018, Volume: 11 Issue: 3, 301 - 308, 01.09.2018

Yahya Öztürk , Memiş Bolacalı

https://doi.org/10.30607/kvj.424399

Abstract

Bu çalışmanın amacı, farklı dozlarda GnRH
aşısının Holştayn erkek buzağılarında besi performansı ve karkas randımanı
üzerine etkisinin belirlenmesidir. Araştırmada, 94 baş Holştayn ırkı erkek
buzağı kullanılmış ve rastgele 4 gruba ayrılmıştır. Besinin 1. ve 60. gününde
kontrol grubuna plasebo olarak 1 mL %0.9'luk tuzlu su çözeltisi derialtı yolla
enjeksiyon yöntemi ile uygulanmıştır. Besinin aynı günlerinde, Deneme-1
grubundaki buzağılara 1 mL ve 1 mL, Deneme-2 grubundaki
buzağılara 1.5 mL ve 1.5 mL ve Deneme-3 grubundaki buzağılara ise 1.5 mL and 1 mL olmak
üzere iki doz immunokastrasyon aşısı (Bopriva®) derialtı yolla
enjeksiyon yöntemi ile uygulanmıştır. Besi 180 gün sürüştür.
Farklı dozlarda immunokastrasyon aşısı uygulamasının
entansif koşullarda yetiştirilen Holştayn erkek danalarında, canlı ağırlık ve
karkas randımanı üzerine etkisinin olmadığı belirlenmiştir (P>0.05). Buna
karşın immunokastrasyon aşısı uygulamasının besinin 61-120 (P<0.05) ile 1-180. gün (P<0.01) arası dönemde
besi performansını azalttığı belirlenmiştir. Sonuç olarak, Holştayn erkek danalarında GnRH aşısı olarak Bopriva®’nın
farklı dozlarda uygulamasının; besi performansını düşürdüğü buna karşın immunokastrasyon aşısı
uygulanan gruplar içinde rakamsal olarak en yüksek canlı ağırlık artışının Deneme-2
grubunda olduğu tespit edilmiştir.

Keywords

GnRH, besi, immunokastrasyon

Effect of Immunocastration Vaccine Administration At Different Doses on Performance of Feedlot Holstein Bulls

Abstract

The
aim of the study is to determine the effect of immunocastration vaccine
administration at different doses on fattening performance of feedlot Holstein
bulls. In this research, 94 Holstein male calves assigned to the 4 treatments.
Control group; 1 mL of 0.9% saline solution was subcutaneously injected to
intact bulls on 1st and 60th days of the feedlot as placebo. On the same days
of the feedlot, Immunocastration vaccine (Bopriva®) at two doses of 1 mL and 1
mL for Trial-1 group, 1.5 mL and 1.5 mL for Trial-2 group, 1.5 mL and 1 mL for
Trial-3 group were subcutaneously injected to bulls. The feedlot lasted 180 days.
Immunocastration vaccine administration at different doses did not affect the
live weights (LWs) and cold carcass yields of feedlot Holstein bulls
(P>0.05). However, it reduced fattening performance between 61-120 days
(P<0.05) and 1-180 days (P<0.01). As a result, it was decreased the
fattening performance that administration of Bopriva® at different doses as a
GnRH vaccine in Holstein male bulls; whereas it was determined that numerically
increase in average daily live weight gain was found in the Trial-2 group than
the other groups to which the immunocastration vaccine was applied.

Keywords

GnRH, fattening, immunocastration

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