English Türkçe

Quick Access


Bu Dergi DOI ve Crosscheck üyesidir


Siyah Alaca Buzağılarında Doğum Ağırlığı Üzerinde Etkili faktörlerin Belirlenmesi İçin Regresyon Ağacı Analizi
(Regression Tree Analysis for Determination of the Effective Factors on Birth Weight in Holstein Calves )

Author : Emine BERBEROĞLU  Yalçın TAHTALI  
Type :
Printing Year : 2017
Number : 2017-3
Page : 166-171


Summary
Bu çalışmanın amacı regresyon ağacı (RT) analizi ile buzağı doğum ağırlığı üzerine, buzağı cinsiyeti, doğum tipi ve doğum ayının etkilerini belirlemektir. Bu amaçla, Polatlı Tarım İşletmesinde yetiştirilen 894 adet siyah alaca buzağılarına ait veriler analiz edilmiştir. Buzağılara ait ortalama doğum ağırlığı 38,478 ± 2.487 kg olarak bulunmuştur. Toplam buzağılamanın %95.5 tek doğum şeklinde oluşmuştur. İkiz doğanların ağırlığı (35,125 ± 1.652 kg) tek doğanlardan (38,635 ± 2.408 kg) daha düşük bulunmuştur Erkek buzağılar, dişi buzağılardan 1.28 kg daha daha ağır ve önemli bulunmuştur (P<0.05). İkiz doğanların doğum ağırlığı ortalaması, tekiz doğanlardan 3.58 kg daha düşük bulunmuştur. Doğum ağırlığı üzerine buzağılama ayı, buzağı cinsiyeti ve doğum tipi etkileri anlamlı bulunmuştur (P<0.05).

Turkish Keywords
Doğum ağırlığı, doğum ayı, Regresyon ağacı analizi, Siyah Alaca buzağı

Abstract
The aim of this paper was to describe the effects of calf sex, birth month and type on birth weight using Regression Tree (RT) analysis. For this purpose, 894 Holstein calves data raised in Polatlı State Farm were analyzed. The birth weight of calves averaged 38.478 ± 2.487 kg. of total calves born, 95.5% were single born. Twin born calves weights were lower (35.125 ± 1.652 kg) than single born (38.635±2.408 kg). Male calves were significantly (P<0.05) heavier than females by 1.28 kg. The mean birth weight of twin calves was 3.58 kg lower than that of single. Effects of calving month, sex of calf, birth type on birth weight were all significant (P<0.05).

Keywords
Birth month, birth weight, Holstein calf, Regression tree analysis

Advanced Search


Announcements















    [JAFAG] Yeni Sayımız Basılmıştır JAFAG, 36 (1)

    [JAFAG] New Issue Published JAFAG, 36 (1)



    Call for papers

    To Researcher:

    I am delighted to invite you to disseminate your research findings in Journal of Agricultural Faculty of Gaziosmanpasa University (JAFAG).  I wish to publish original research articles in agricultural sciences. In our journal: rapid manuscript publication and peer review process with online manuscript submission system, quick access of your research results to global audience  with open access system.

    I hope you will contribute your article for publication in JAFAG and thanking you in advance.


    AIMS and SCOPE

    Journal of Agricultural Faculty is scientific, peer reviewed journal and belonged to the Gaziosmanpasa University Faculty of Agriculture since 1985. Journal of Agricultural Faculty of Gaziosmanpasa University aims to publish the national and international scientific paper on agriculture sciences (agricultural economics, animal science, biosystems engineering, field crops, fisheries engineering, horticulture, plant protection, soil science and plant nutrition). The journal is published the third issues in a year from 2014.


    Journal of Agricultural Faculty of Gaziosmanpasa University (JAFAG)

    Journal of Agricultural Faculty of Gaziosmanpasa University (JAFAG) is an international peer-reviewed journal and belonged to the Gaziosmanpasa University Faculty of Agriculture since 1985.

    The journal is open access.

    The journal has both online and printed publishing.

    The journal has a manuscript submisson system.

    There are no page charges.


    INDEXING

    ACADEMIC JOURNALS DATABASE

    AGRICOLA

    ARASTIRMAX

    CAB ABSTRACTS

    CROSSREF

    DIRECTORY OF SCIENCE

    DOAJ (DIRECTORY OF OPEN ACCESS JOURNALS)

    DRJI (DIRECTORY OF RESEARCH JOURNAL INDEXING)

    EBSCO

    EFITA (INTERNATIONAL DIRECTORY OF AGRICULTURE, FOOD AND THE ENVIRONMENT)

    ELECTRONIC JOURNALS LIBRARY

    FAO- AGRIS

    GENAMICS JOURNALSEEK

    GLOBAL IMPACT AND QUALITY FACTOR

    GOOGLE SCHOLAR

    INDEX COPERNICUS

    JOURNAL INDEX

    JOUR INFORMATICS

    OPEN ACCESS LIBRARY

    OPEN J-GATE

    RESEARCH BIBLE

    ROAD (DIRECTORY OF OPEN ACCESS SCHOLARLY  RESOURCES)

    SIS (SCIENTIFIC INDEXING SERVICE)

    SCIENCE CENTRAL

    THE GROVE ONLINE LIBRARY

    TUBITAK-ULAKBIM

    ULRICHSWEB

    WORLDCAT


    [JAFAG] New Issue Published JAFAG, 36 (1)
    Journal of Agricultural Faculty of Gaziosmanpasa University, JAFAG has just published its latest issue (Vol 36, No 1, 2019, JAFAG) at http://ziraatdergi.gop.edu.tr.

    ICV Impact Factor: 4.95 (2012) - 5.94 (2013) - 70.06 (2015) - 72.50(2016) - 84.65 (2017)

    We invite you to review the Contents here and then visit journal web site to review articles.

    Thanks for the continuing interest in our work in journal.



Address :Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Dergisi Yayın Ünitesi, Tokat-TÜRKİYE / Adress:Journal of Agricultural Faculty of Gaziosmanpasa University Publishing Unit, Tokat, TURKEY
Telephone :03562521616-2178 / Telephone: +90 356 252 16 16- 2 Fax :03562521488 / Fax:+90 356 252 14 88
Email :ziraatdergi@gop.edu.tr/ e-mail: ziraatdergi@gop.edu.tr

Web Yazılım & Programlama Han Yazılım Bilişim Hizmetleri