EN
Comparison of Different Lactation Models for Holstein Friesian Cows
Öz
This study carried out parameter estimations of the lactation curve of 371 lactation records that were obtained from 176 Holstein Friesian cows in the period of 2004-2009 at the Kazova Vasfi Diren Agriculture Facilities using three different models (Wood, Cobby and Le Du and Wilmink). For this purpose, coefficient of determination (R2), mean squared error (MSE) and Durbin-Watson (dw) values were used to determine the best model. The highest coefficient of determination for the Wood model was found as 0.96 in the 3th lactation, while the mean squared error was found as 37,75. For the Cobby and Le Du model, the highest coefficient of determination value and mean squared error were found as 0.96 and 37,43 in the 3th lactations, respectively. For the Wilmink model, the highest coefficient of determination and the lowest mean squared error value were found as 0.45 and 40.49 respectively. In the study, it was determined that the Cobby and Le Du model with the minimum MSE, maximum R2 and minimum dw were the best models for estimating lactation curves for Holstein cattle at the Kazova Vasfi Diren Agriculture Facilities.
Anahtar Kelimeler
Kaynakça
- Bouallegue MN, M’hamdi M, Ben H, Haddad B (2014). Study of non-genetic factors on the shape of lactation curves for milk yield, fat and protein percents of Holstein-Friesian cows under hot Mediterranean climate. Archiva Zootechnica, 17: 55-75.
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- Cobby JM, Le Du, YLP (1978). On Fitting Curves To Lactation Data. Animal Production. 26: 127-133.
- Ertugrul O, Orman NM. (1999). Holstein İneklerin Süt Verimlerinde Üç Farklı Laktasyon Modelinin İncelenmesi. Turkish Journal of Veterinary And Animal Sciences, 23: 605–614.
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- Esenboga N, Bilgin OC (2004). İvesi Koyunlarının Laktasyon Eğrisinin Tahmini ve Tanımlanması için Farklı Matematik Modellerin Mukayesesi, IV. Ulusal Zootekni Bilim Kongresi, 1–4 Eylül, Isparta, 166–169.
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Ayrıntılar
Birincil Dil
İngilizce
Konular
-
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
31 Ağustos 2019
Gönderilme Tarihi
7 Aralık 2018
Kabul Tarihi
19 Ağustos 2019
Yayımlandığı Sayı
Yıl 2019 Cilt: 36 Sayı: 2
APA
Tahtalı, Y., & İleri, R. (2019). Comparison of Different Lactation Models for Holstein Friesian Cows. Journal of Agricultural Faculty of Gaziosmanpaşa University, 36(2), 124-128. https://doi.org/10.13002/jafag4568
AMA
1.Tahtalı Y, İleri R. Comparison of Different Lactation Models for Holstein Friesian Cows. Journal of Agricultural Faculty of Gaziosmanpaşa University. 2019;36(2):124-128. doi:10.13002/jafag4568
Chicago
Tahtalı, Yalçın, ve Reha İleri. 2019. “Comparison of Different Lactation Models for Holstein Friesian Cows”. Journal of Agricultural Faculty of Gaziosmanpaşa University 36 (2): 124-28. https://doi.org/10.13002/jafag4568.
EndNote
Tahtalı Y, İleri R (01 Ağustos 2019) Comparison of Different Lactation Models for Holstein Friesian Cows. Journal of Agricultural Faculty of Gaziosmanpaşa University 36 2 124–128.
IEEE
[1]Y. Tahtalı ve R. İleri, “Comparison of Different Lactation Models for Holstein Friesian Cows”, Journal of Agricultural Faculty of Gaziosmanpaşa University, c. 36, sy 2, ss. 124–128, Ağu. 2019, doi: 10.13002/jafag4568.
ISNAD
Tahtalı, Yalçın - İleri, Reha. “Comparison of Different Lactation Models for Holstein Friesian Cows”. Journal of Agricultural Faculty of Gaziosmanpaşa University 36/2 (01 Ağustos 2019): 124-128. https://doi.org/10.13002/jafag4568.
JAMA
1.Tahtalı Y, İleri R. Comparison of Different Lactation Models for Holstein Friesian Cows. Journal of Agricultural Faculty of Gaziosmanpaşa University. 2019;36:124–128.
MLA
Tahtalı, Yalçın, ve Reha İleri. “Comparison of Different Lactation Models for Holstein Friesian Cows”. Journal of Agricultural Faculty of Gaziosmanpaşa University, c. 36, sy 2, Ağustos 2019, ss. 124-8, doi:10.13002/jafag4568.
Vancouver
1.Yalçın Tahtalı, Reha İleri. Comparison of Different Lactation Models for Holstein Friesian Cows. Journal of Agricultural Faculty of Gaziosmanpaşa University. 01 Ağustos 2019;36(2):124-8. doi:10.13002/jafag4568