Milk Production Curves Obtained from Cows Raised in Türkiye According to Years and Determination of Production Differences with the Help of Cluster Analysis and Friedman Test

Alper Güven; Murat Çimen

Makale detayları

Milk Production Curves Obtained from Cows Raised in Türkiye According to Years and Determination of Production Differences with the Help of Cluster Analysis and Friedman Test

Yazarlar:

Alper Güven | Murat Çimen

Yayıncı:

Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar:

Hayvan Yetiştirme

Dergi:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.8 Issue 3, pp.1169-1186

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344718

pISSN:

2687-3729

Anahtar kelimeler:

Özet:

 In the study, cluster analysis and Friedman tests were used to create curves for cow milk yields in Türkiye between 2010-2023 and to determine yield differences. For this purpose, milk yield records obtained from TUIK for the years in question were used. Since data before 2010 could not be accessed, 2010 was taken as the starting date. When the figures obtained in the study are examined, it is striking that the years generally show similar curves. These curves generally show a decrease from January to February, then an increase until May. Milk yield values, which reach their peak in May, decrease again until November. After this month, a new increase is noted in December. The months showing maximum and minimum values in the graphs of 2016 and 2017 are different. Therefore, different curves were obtained for these years compared to other years. When the curves of all years, cluster analysis and Friedman test results are examined in general, it can be said that the highest production was determined in May and the lowest production in November. The reason for these differences should be investigated for the years 2016 and 2017, when different curve results were obtained. The findings of this study are important in terms of providing preliminary information for those who will conduct model studies on milk production in our country. In addition to the evaluation of curve graphs, it has been seen from the research findings that different statistical techniques such as cluster analysis and Friedman test give effective results in this type of data. Both cluster analysis and Friedman test methods are test methods that can be used safely in new studies where curve graphs will be made.

 In the study, cluster analysis and Friedman tests were used to create curves for cow milk yields in Türkiye between 2010-2023 and to determine yield differences. For this purpose, milk yield records obtained from TUIK for the years in question were used. Since data before 2010 could not be accessed, 2010 was taken as the starting date. When the figures obtained in the study are examined, it is striking that the years generally show similar curves. These curves generally show a decrease from January to February, then an increase until May. Milk yield values, which reach their peak in May, decrease again until November. After this month, a new increase is noted in December. The months showing maximum and minimum values in the graphs of 2016 and 2017 are different. Therefore, different curves were obtained for these years compared to other years. When the curves of all years, cluster analysis and Friedman test results are examined in general, it can be said that the highest production was determined in May and the lowest production in November. The reason for these differences should be investigated for the years 2016 and 2017, when different curve results were obtained. The findings of this study are important in terms of providing preliminary information for those who will conduct model studies on milk production in our country. In addition to the evaluation of curve graphs, it has been seen from the research findings that different statistical techniques such as cluster analysis and Friedman test give effective results in this type of data. Both cluster analysis and Friedman test methods are test methods that can be used safely in new studies where curve graphs will be made.

 In the study, cluster analysis and Friedman tests were used to create curves for cow milk yields in Türkiye between 2010-2023 and to determine yield differences. For this purpose, milk yield records obtained from TUIK for the years in question were used. Since data before 2010 could not be accessed, 2010 was taken as the starting date. When the figures obtained in the study are examined, it is striking that the years generally show similar curves. These curves generally show a decrease from January to February, then an increase until May. Milk yield values, which reach their peak in May, decrease again until November. After this month, a new increase is noted in December. The months showing maximum and minimum values in the graphs of 2016 and 2017 are different. Therefore, different curves were obtained for these years compared to other years. When the curves of all years, cluster analysis and Friedman test results are examined in general, it can be said that the highest production was determined in May and the lowest production in November. The reason for these differences should be investigated for the years 2016 and 2017, when different curve results were obtained. The findings of this study are important in terms of providing preliminary information for those who will conduct model studies on milk production in our country. In addition to the evaluation of curve graphs, it has been seen from the research findings that different statistical techniques such as cluster analysis and Friedman test give effective results in this type of data. Both cluster analysis and Friedman test methods are test methods that can be used safely in new studies where curve graphs will be made.

 Araştırmada, Türkiyede 2010-2023 yılları arasında inek sütü üretim miktarlarına ait kürvelerin oluşturulmasına ve üretim farklılıklarının belirlenmesinde kümeleme analizi ve Friedman testinin kullanılabilirliğinin test edilmesine çalışılmıştır. Bu amaçla söz konusu yıllara ait TUİKten elde edilen süt üretim verileri kullanılmıştır. 2010 yılından önceki verilere ulaşılamadığı için başlangıç tarihi olarak 2010 yılı alınmıştır. Araştırmada elde edilen rakamlara bakıldığında yılların genel olarak benzer kürveler gösterdiği dikkat çekmektedir. Bu kürveler genel olarak Ocak ayından Şubat ayına kadar bir düşüş, ardından Mayıs ayına kadar bir artış göstermektedir. Mayıs ayında zirve yapan süt üretim miktarı, Kasım ayına kadar tekrar düşüş göstermektedir. Bu aydan sonra Aralık ayında yeni bir artış dikkat çekmektedir. 2016 ve 2017 yıllarına ait grafikte maksimum ve minimum değer gösteren aylar farklılık göstermektedir. Bu nedenle bu yıllar için diğer yıllara göre farklı kürveler elde edilmiştir. Tüm yıllara ait kürveler ve kümeleme analizi ile Friedman testi sonuçları genel olarak incelendiğinde en yüksek üretimin Mayıs ayında, en düşük üretimin ise Kasım ayında belirlendiği söylenebilir. Farklı kürve sonuçlarının elde edildiği 2016 ve 2017 yılları için bu farklılıkların nedeni araştırılmalıdır. Bu çalışmanın bulguları ülkemizde süt üretimi ile ilgilenen model çalışmaları yapacaklar için ön bilgi olması açısından önem taşımaktadır. Kürve grafiklerinin değerlendirilmesinin yanı sıra bu tip verilerde kümeleme analizi ve Friedman testi gibi farklı istatistiksel tekniklerin etkili sonuçlar verdiği araştırma bulgularından görülmüştür. Hem kümeleme analizi hem de Friedman testi yöntemi kürve grafiklerinin yapılacağı yeni çalışmalarda güvenle kullanılabilecek test yöntemleridir.

Makale detayları

Milk Production Curves Obtained from Cows Raised in Türkiye According to Years and Determination of Production Differences with the Help of Cluster Analysis and Friedman Test

Yazarlar:

Alper Güven | Murat Çimen

Yayıncı:

Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar:

Hayvan Yetiştirme

Dergi:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.8 Issue 3, pp.1169-1186

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344718

pISSN:

2687-3729

Cow

Cluster analysis

Friedman test

Curve

Milk productionİnek

Kümeleme analizi

Friedman test

Kürve

Süt üretimi

Sayı

Makale detayları

Yazarlar: Alper Güven | Murat Çimen

Yayıncı: Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar: Hayvan Yetiştirme

Dergi: Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.8 Issue 3, pp.1169-1186

Belge Tipi: Makale

Yayın Tarihi: 6/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001344718

pISSN: 2687-3729

Sayı

Yazarlar:

Alper Güven | Murat Çimen

Yayıncı:

Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar:

Hayvan Yetiştirme

Dergi:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.8 Issue 3, pp.1169-1186

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344718

pISSN:

2687-3729