Open AccessActual and Prediction Body Weight Performance from Birth Until of 18 Months of Age in Dairy Cattle Friesian Holstein
Author(s) -
Didin Supriat Tasripin,
Heni Indrijani,
Asep Anang,
H Purnamasari,
Erinne Dwi Nanda
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/334/1/012002
Subject(s) - body weight , birth weight , zoology , lower body , logistic regression , medicine , biology , pregnancy , genetics
The aim of this research is to get the body weight performance and growth pattern of Friesian Holstein dairy cows from birth to 18 months. This study used monthly weight data of dairy Friesian Holstein cows from birth to 18 months (508 head). Obtained standard equation of body weight by using logistic regression model ŷ=363.53⁄=1+〖6.57e〗^(-0.21(x)) ) (Se = 14.78; r = 0.989), inflection point occurs at age 10 months (body weight 232.4 kg). The actual body weight of calves at birth until the age of 2 months is lower than the weight of the alleged body. The actual body weight of the calf aged 3 to 6 months is higher than the body weight of the estimation and the actual body weight of the calf above the estimation weight standard. The actual body weight of 7-9 months is still higher than the weight but at 10-12 months the actual body weight is lower than the expected weight, (puberty phase) that will affect growth. Month at 13-16 actual body weight is lower than the weight of the estimation body, as well as the previous month that is the first period of lust and puberty.