Comparison of models for lactation curves of Holstein, Brown Swiss, and F1 crossbred cows under subtropical conditions

Tropical and subtropical milk production herds in Mexico generally generate different types of milk-yield records as milk yield per month and mean production per month. Lactation curves generated by these types of records may contribute to understand milk production in the tropical regions of Mexico...

Full description

Saved in:
Bibliographic Details
Published in:Tropical animal health and production 2022-06, Vol.54 (3), p.192-192, Article 192
Main Authors: Hernández-Zamudio, Julio A., Villagómez-Cortés, José A., Vega-Murillo, Vicente E., Leyva-Ovalle, Otto R., Vicente-Martínez, Jorge G., Ríos-Utrera, Ángel
Format: Article
Language:English
Subjects:
Animals
Biomedical and Life Sciences
Cattle
Cattle - genetics
Dairy cattle
Datasets
Decision making
Female
Goodness of fit
Lactation
Life Sciences
Mexico
Milk
Milk production
Regular Articles
Root-mean-square errors
Statistical tests
Tropical environment
Tropical environments
Veterinary Medicine/Veterinary Science
Zoology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Tropical and subtropical milk production herds in Mexico generally generate different types of milk-yield records as milk yield per month and mean production per month. Lactation curves generated by these types of records may contribute to understand milk production in the tropical regions of Mexico. The aim of this study was to compare five lactation-curve models fitted to two types of milk-yield records of Holstein, Brown Swiss, and F1 crossbred cows under subtropical conditions. The two types of records ( n  = 3756) used were: (1) milk yield per month (TR) and 2) mean production per months (MR). Goodness-of-fit statistics, including Akaike’s information criterion (AIC) and root mean square error (RMSE), were applied to compare the models for each type of records. The Brody model provided the best goodness-of-fit when using monthly milk-yield records, while the Wilmink model provided the best goodness-of-fit for lactation milk-yield records. The RMSE and AIC values were similar between datasets. The final third of the lactation curve showed a little difference between model predictions in both datasets. The comparison of several models was useful to better describe the actual lactation curves of the herd. The Wood model may be adequate to compare information as a reference with other models for decision making process at milk production.
ISSN:0049-4747
1573-7438
DOI:10.1007/s11250-022-03144-4