Growth comparison between wild type and slick-haired Puerto Rican Holstein heifers

Autor:	Héctor L. Sánchez-Rodríguez
Rok vydání:	2019
Předmět:	Animal science Age differences Productivity (ecology) Wild type Puerto rican Animal Science and Zoology Biology Body weight Agronomy and Crop Science
Zdroj:	The Journal of Agriculture of the University of Puerto Rico. 103:49-58
ISSN:	2308-1759 0041-994X
DOI:	10.46429/jaupr.v103i1.17900
Popis:	The present study compared the monthly body weight (BW) of 14 wild type (WT) and 11 slick-haired (SLICK) Puerto Rican Holstein heifers from four to 34 months of age at the Agricultural Experiment Station in Lajas, Puerto Rico. Data were analyzed by the GLIMMIX, GLM and REG Procedures in SAS. Hair coat type and age interacted to affect BW (P=0.0005). However, no differences in BW were observed between WT and SLICK heifers (overall mean BW of 279.33±5.78 and 275.06±6.91 kg, respectively; P=0.3182). From four to 34 months, BW increased in both the WT (93.52±11.42 to 446.35±28.27 kg; P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6ff3d9365e5de9e4b34e7c39cefc3a36 https://doi.org/10.46429/jaupr.v103i1.17900 Zobrazit plný text záznamu