Effects of supplementation of calcium salts of polyunsaturated fatty acids on serum concentrations of progesterone and insulin of pregnant dairy cows

Autor: Fernanda Victor Rodrigues Vieira, R.O. Rodrigues, Reinaldo F Cooke, A. C. Aboin, José Luiz Moraes Vasconcelos, Philipe Moriel, Bruno I Cappellozza, Luiz F. Ferraretto
Přispěvatelé: Universidade Estadual Paulista (Unesp), Oregon State Univ, Universidade Estadual Paulista (UNESP), Oregon State University
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Revista Brasileira de Zootecnia, Vol 43, Iss 1, Pp 20-26 (2014)
Revista Brasileira de Zootecnia v.43 n.1 2014
Revista Brasileira de Zootecnia
Sociedade Brasileira de Zootecnia (SBZ)
instacron:SBZ
Revista Brasileira de Zootecnia, Volume: 43, Issue: 1, Pages: 20-26, Published: JAN 2014
Scopus
ISSN: 1516-3598
Popis: Made available in DSpace on 2014-12-03T13:10:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-01Bitstream added on 2014-12-03T13:23:07Z : No. of bitstreams: 1 S1516-35982014000100004.pdf: 1009677 bytes, checksum: 63a2a6ccb21c5e65fa7c66e4290e1d88 (MD5) Forty-five non-lactating, pregnant Holstein animals (18 heifers and 27 multiparous cows; BW = 561 +/- 114 kg; BCS = 2.9 +/- 0.3; days pregnant = 110 +/- 56 d) were stratified by initial BW and BCS, and randomly assigned to receive daily (as-fed basis) 0.50 kg of ground corn plus 0.22 kg of kaolin (CON), calcium salts of saturated fatty acids (SFA) or polyunsaturated fatty acids (PF) for 14 d. Blood samples were collected on days 0, 7 and 14, immediately prior to (0 h) and 3, 6, 9 and 12 h after feeding, to determine the serum concentrations of P 4 and insulin. No treatment effects were detected for serum concentrations of P 4 (5.52, 6.13 and 5.63 +/- 0.41 ng/mL for CON, SFA and PF, respectively). No treatment effects were detected for serum concentrations of insulin (11.5, 10.5 and 10.1 +/- 1.43 mu IU/mL for CON, SFA and PF, respectively). Heifers had greater serum concentrations of P 4 than multiparous cows (6.35 vs. 5.16 +/- 0.42 ng/mL), but lower serum concentrations of insulin (7.0 vs. 14.4 +/- 1.49 mu IU/mL). Feeding 0.22 kg of calcium salts of polyunsaturated fatty acids is not sufficient to increase the serum concentrations of P 4 and insulin of non-lactating, pregnant dairy cows. Univ Estadual Paulista, Fac Med Vet & Zootecnia, Dept Anim Prod, Botucatu, SP, Brazil Oregon State Univ, Eastern Oregon Agr Res Ctr, Burns, OR USA Univ Estadual Paulista, Fac Med Vet & Zootecnia, Dept Anim Prod, Botucatu, SP, Brazil
Databáze: OpenAIRE