Hostname: page-component-6766d58669-fx4k7 Total loading time: 0 Render date: 2026-05-20T06:31:57.663Z Has data issue: false hasContentIssue false

Identification of factors affecting colostrum quality of dairy Lacaune ewes assessed with the Brix refractometer

Published online by Cambridge University Press:  20 November 2017

Laura Torres-Rovira
Affiliation:
Department of Animal Reproduction, INIA, Avda Pta. de Hierro s/n, 28040 Madrid, Spain
Jose-Luis Pesantez-Pacheco
Affiliation:
Department of Animal Reproduction, INIA, Avda Pta. de Hierro s/n, 28040 Madrid, Spain Faculty of Agricultural Sciences, School of Veterinary Medicine and Zootechnics, University of Cuenca, Avda. Doce de Octubre, Cuenca, Ecuador
Fernando Hernandez
Affiliation:
Granja Cerromonte SL, 05358 San Juan de la Encinilla, Ávila, Spain
Laura Elvira-Partida
Affiliation:
MSD Animal Health, Pol. El Montalvo I, 37008 Carbajosa de La Sagrada, Salamanca, Spain
Maria-Luz Perez-Solana
Affiliation:
Department of Animal Reproduction, INIA, Avda Pta. de Hierro s/n, 28040 Madrid, Spain
Juan-Vicente Gonzalez-Martin
Affiliation:
Faculty of Veterinary Medicine, Surgery and Medicine Department, Complutense University of Madrid (UCM), Avda. Pta. de Hierro s/n, 28040 Madrid, Spain
Antonio Gonzalez-Bulnes
Affiliation:
Department of Animal Reproduction, INIA, Avda Pta. de Hierro s/n, 28040 Madrid, Spain
Susana Astiz*
Affiliation:
Department of Animal Reproduction, INIA, Avda Pta. de Hierro s/n, 28040 Madrid, Spain
*
*For correspondence; e-mail: astiz.susana@inia.es

Abstract

In this Research Communication we assessed factors affecting colostrum quality of dairy Lacaune ewes using the Brix-refractometer. Colostrum from 536 lambings from one commercial intensive dairy Lacaune farm were analysed for the following factors with potential influence in colostrum quality: (1) ewe parity (n = 84–132), (2) length of previous dry period (PDP) (n = 23–214), (3) age at first lambing (AFL) of primiparous ewes (n = 9–88), (4) lambing season (n = 192 or 344), and (5) year (2011–2013, n = 142–203). Parity significantly affected colostrum quality, with primiparous ewes showing the highest Brix refractometer values (22·6 ± 5·6%, P < 0·0001), though values were similar among multiparous ewes. PDP length also significantly affected colostrum quality: ewes with the shortest PDP showed the worst quality (16·8 ± 4·2%, P < 0·0001), with quality gradually rising with PDP length. Colostrum quality was significantly higher in 2011 (21·0 ± 5·2%) than in 2012 or 2013 (P < 0·0001); this likely reflects the several-fold greater proportion of animals with long PDP in 2011. In contrast, neither AFL nor lambing season significantly affected colostrum quality. These results suggest that parity and PDP length can substantially affect ovine colostrum quality of dairy ewes under intensive management conditions and they further show the usefulness of the Brix refractometer for providing a rough estimation of colostrum quality on-farm. However, further studies are needed to determine a validated cut-off Brix value for identifying good-quality colostra in ovine species.

Information

Type
Research Article
Copyright
Copyright © Hannah Research Foundation 2017 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable