Cihan Çakmakçı

Cihan Çakmakçı
University of São Paulo | USP · Departamento de Zootecnia (ZAZ) (Pirassununga)

PhD

About

23
Publications
2,721
Reads
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43
Citations
Introduction
Computer vision, Machine learning, Farm animal behaviours, Coping style, Personality, Farm animal welfare, Ruminant meat production, carcass and meat quality.
Additional affiliations
October 2014 - May 2022
Yuzuncu Yil University
Position
  • Professor (Assistant)
October 2011 - February 2014
Cukurova University
Position
  • Research Assistant

Publications

Publications (23)
Article
The objective of this study was to estimate the repeatability of behavioral traits in sheep subjected to a 5-minute arena test. Two separate tests were conducted over two years to assess the among-individual consistency of behavioral responses in 68 nonpregnant Norduz ewes (2–5 years of age). During each arena test, five behavioral variables were m...
Article
Full-text available
The objective of this study was to compare predictive performances of four machine learning (ML) models: Support Vector Machines with Radial Basis Function Kernel (SVMR), Classification and Regression Trees (CART), Random Forest (RF) and Model Average Neural Networks (MANN) to predict live weight from morphological measurements of Norduz sheep (n=9...
Article
The objective of this study was to define coping style of sheep by using unsupervised machine learning approaches. A total of 105 Norduz sheep (age 3-5 years) were subjected to a 5-minute arena test. Agglomerative Hierarchical Clustering (HCA) was performed on scores of selected principal components retained from Principal Components Analysis (PCA)...
Article
This study was conducted to determine temperament and maternal care classes, CYP17 gene polymorphisms, and cortisol status of a group of Norduz ewes. Additionally, the relationships between these factors, their effects on lambs survival and growth characteristics were investigated. A total of 72 ewes were subjected to arena and isolation box tests...
Article
The objective of this study was to determine the relationships between coping style (CS), and physiological, behavioral characteristics and growth performance of lambs weaned at different ages. Male Karakaş lambs (n = 75, mean age = 30 d) obtained from a breeder farm were subjected to a 3-minute open field test. Of the 75 lambs classified by hierar...
Article
This study examined how inclusion of dried distillers' grains with solubles (DDGS) in finishing lamb diets for different periods affects some physiological indicators and meat quality. A total of 40 male lambs were divided into four groups according to feeding regimen during the 120-day finishing period as follows: C120: no DDGS included in diet fo...
Article
When crossbreeding with beef breeds in organic dairy herds, the use of non-sexed semen will results in both male and female offspring to be used for beef production. The objective of the present study was to compare growth and carcass characteristics of 15 Danish Holstein bull (HB) calves, 15 beef x Danish Holstein crossbred bull (CB) calves and 15...
Article
Full-text available
This study aimed to evaluate the effects of adding dried distillers’ grains with solubles (DDGS) to the nutritional regimens of ewes at different time periods on reproductive traits, serum hormones and serum metabolites. In Experiment 1, 100 ewes were divided into 4 groups (n = 25) according to diet. The four diets were grass hay (H) alone (group H...
Conference Paper
Individual differences, in terms of personality or temperament, can affect how animals react to new situations, hence to their productive, reproductive performance and behaviors in various social situations. The aim of this study was to evaluate temperament and its association with behavioral and morphological traits (headlength, headwidth, distanc...
Article
Full-text available
Son yıllarda gerek hayvan refahının iyileştirilmesi gerekse üretimin arttırılmasına yönelik çabaların hız kazanmış olması bu alana yönelik yeni yaklaşımlara ihtiyaç duyulduğunu göstermektedir. Hayvan refahı, dünyanın birçok ülkesinde hızla artan bir endişe konusu haline gelmiş ve bu endişeler yetiştiricilerinin kullandıkları bakım-besleme ve tedavi...
Article
zet: Son yıllarda gerek hayvan refahının iyileştirilmesi gerekse üretimin arttırılmasına yönelik çabaların hız kazanmış olması bu alana yönelik yeni yaklaşımlara ihtiyaç duyulduğunu göstermektedir. Hayvan refahı, dünyanın birçok ülkesinde hızla artan bir endişe konusu haline gelmiş ve bu endişeler yetiştiricilerinin kullandıkları bakım-besleme ve t...
Article
Full-text available
Increased effort to enhance both animal production and welfare, indicates that new approaches are needed in this subject. Animal welfare is a subject of increasing concern in many countries around the world, and this concern causes animal users to change the ways of keeping and of treating their animals. In this context, selection of individuals wh...
Conference Paper
Full-text available
Lidia’s meat shows peculiarities concerning beef meat production, which will be reflected in the process of transformation of muscle into meat, and the influence of stress of the bullring due to physical activity, being classified the meat from Lidia fighting bulls as DFD. The aim of the work was to study the effect of labeling on this kind of Lidi...
Conference Paper
Full-text available
The aim of this study was to determine the effect of age on fear reactions and maternal behavior score (MBS) in sheep. Sixty Norduz ewes at 2, 3 and 4-years-old age were subjected to arena and isolation box tests to determine fear reactions. MBSs of these ewes and their lambs' first week survival rate also were recorded. Approach-avoidance situatio...
Article
Two experiments were conducted to examine the influence of the starter supplemented with butyrate salts on the performance of Holstein calves. Twenty-three and thirty-five male calves were used in the Experiment I and II, respectively. Total duration of the experiments are 70 d (35 d pre-weaning and 35 d post-weaning) and 100 d (60 d pre-weaning an...

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Projects

Projects (9)
Project
A special topic of Frontiers in Animal Behavior and Welfare (Impact Factor: 3.412). Research Topic: Behavior and Heat Stress. Topic Editors: Cristiane Gonçalves Titto, Messy Hannear De Andrade Pantoja, Cihan Çakmakçı, Fabio Luis Henrique and Priscila dos Santos Silva. Submission Deadlines: 31 July 2022 Abstract 31 October 2022 Manuscript Further information: https://www.frontiersin.org/research-topics/36713/behavior-and-heat-stress
Project
video object tracking, lambs' behavioral activities during behavioral testing.