Analysis of The Effect of Region, Province and Breed on Somatic Cell Count in Dairy Cattle in Turkey By Regression Tree Method

IF 0.7 4区农林科学 Q3 AGRONOMY

Emirates Journal of Food and Agriculture Pub Date : 2023-05-15 DOI:10.9755/ejfa.2023.v35.i6.3100

Onur Şahi̇n

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Abstract

This study aimed to determine the effect of various environmental factors on the somatic cell count (SCC) in cow’s milk. The material of the study consisted of an SCC analysis result obtained from 207.614 raw milk samples collected from 65.288 head cattle had different breeds, ages, lactation number, and lactation length between May and December in 2019. They were raised on 6,305 dairy farms that are members of the Cattle Breeders Association (CBAT). In order to determine the effect of region, city, and cattle breed on SCC in raw milk of cattle, a regression tree was created using the Chi-square Automatic Interaction Detection (CHAID) algorithm, a Data Mining (DM) method. Accordingly, the mean SCC value of all enterprises was determined as 201.253 cells/mL. In this study, it was found that the region, city and breed groups with the highest average somatic cell counts were CAR, MSR, MR and SAR region group (285.430 cells/mL); C09, C45, C20, C64, C48, C43 city group (266.744 cells/mL); and HF, MC, and BS breed group (295.705 cells/mL). As a result of this study, the variables affecting SCC were determined as region, city, and breed respectively, in order of importance. Keywords: CHAID; Dairy cattle; Somatic cell count

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用回归树法分析地区、省、种系对土耳其奶牛体细胞计数的影响

本研究旨在确定各种环境因素对牛奶中体细胞计数（SCC）的影响。该研究的材料包括从2019年5月至12月期间从65.288头不同品种、年龄、泌乳次数和泌乳长度的头牛身上采集的207.614份生奶样本中获得的SCC分析结果。它们在6305个奶牛场饲养，这些奶牛场是养牛协会（CBAT）的成员。为了确定地区、城市和牛的品种对牛生乳SCC的影响，使用数据挖掘（DM）方法卡方自动交互检测（CHAID）算法创建了回归树。因此，所有企业的SCC平均值被确定为201.253个细胞/mL。本研究发现，平均体细胞计数最高的地区、城市和品种组为CAR、MSR、MR和SAR地区组（285.430个细胞/mL）；C09、C45、C20、C64、C48、C43城市组（266.744个细胞/mL）；HF、MC和BS品种组（295.705细胞/mL）。本研究的结果是，影响SCC的变量按重要性顺序分别确定为地区、城市和品种。关键词：CHAID；奶牛；体细胞计数

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来源期刊

Emirates Journal of Food and Agriculture AGRONOMYFOOD SCIENCE & TECHNOLOGY&nb-FOOD SCIENCE & TECHNOLOGY

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： The "Emirates Journal of Food and Agriculture [EJFA]" is a unique, peer-reviewed Journal of Food and Agriculture publishing basic and applied research articles in the field of agricultural and food sciences by the College of Food and Agriculture, United Arab Emirates University, United Arab Emirates.