Variance and covariance components and genetic parameters for fat and protein yield of first-lactation Holstein cows using random regression models

Autor: Oscar D Múnera Bedoya, Ana C Herrera Ríos, Luis G González Herrera, Andrés F Henao Velásquez, Mario Cerón Muñoz

Publikováno v: Revista Colombiana de Ciencias Pecuarias, Vol 27, Iss 4, Pp 253-263 (2014)

Background: the genetic parameters of the lactation curve in dairy cattle can be analyzed as longitudinal data using Random Regression Models (RRM). Objective: to estimate the (co) variance components and genetic parameters for fat (F) and protein (P

Externí odkaz: https://doaj.org/article/c6eb4baf101647fdb044b3a8e54c1ee7

Lactose and milk urea nitrogen: fluctuations during lactation in Holstein cows

Autor: Ana C Herrera, Oscar David Múnera-Bedoya, Jorge H. Agudelo-Trujillo, Andrés F. Henao-Velásquez, Mario Fernando Cerón-Muñoz

Publikováno v: Revista Brasileira de Zootecnia, Volume: 43, Issue: 9, Pages: 479-484, Published: SEP 2014
Revista Brasileira de Zootecnia, Vol 43, Iss 9, Pp 479-484 (2014)
Revista Brasileira de Zootecnia v.43 n.9 2014
Revista Brasileira de Zootecnia
Sociedade Brasileira de Zootecnia (SBZ)
instacron:SBZ

The objective of this study was to evaluate lactose and milk urea nitrogen (MUN) in milk from Holstein cows and their relationship with days in milk (DIM), milk yield, milk fat, milk protein, and somatic cell count (SCC). A total of 1,034 records cor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d8a8f7d8aa32d6a1996e4fac08ffb23
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