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| Souza,Moacir Rogério de; Santos,Geraldo Tadeu dos; Lima,Luciano Soares de; Mazucheli,Josmar; Zeoula,Lúcia Maria; Rigolon,Luiz Paulo; Cavalieri,Fábio Luiz Bim. |
| ABSTRACT This study was conducted to evaluate the effects of long-chain fatty acid soaps (LCFAS) of soybean oil on the production and quality of aspirated cumulus-oocyte complexes (COC) of lactating Nellore (Bos taurus indicus) cows. The effects of LCFAS on the plasma concentration of lipoproteins, total cholesterol, triacylglycerol, urea N, and insulin were also addressed. Thirty lactating Nellore cows were randomly assigned to one of two dietary groups. Cows were grazed on a Tifton 85 pasture throughout the experiment (100 days). Treatments consisted of a supplement with no fat included (CONT); and a supplement containing 47.2 g/kg of LCFAS on a dry matter basis. After 14 days of treatment, animals were subjected to 4.93±1.55 rounds of consecutive ovum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Insulin; Fat supplementation; Lipid profile; Ovum pick up. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000300138 |
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| Ruiz López,Salvador; Souza,José Camisão de; Zaraza González,Javier; De Ondiz Sánchez,Aitor; Romero-Aguirregomezcorta,Jon; Carvalho,Rafaela Rodrigues de; Rath,Detlef. |
| The objective was to investigate the effects of sex-sorting on early fertilization events in ovum pick up (OPU) derived oocytes fertilized in vitro with frozen-thawed sperm at different co-incubation lengths. Eighty-four OPU sessions were carried out in 18 cyclic, dry and non-stimulated Holstein Friesian and German black pied cows. Ovum pick up oocytes were matured in vitro for 24 hours and fertilized with frozen-thawed sex sorted or unsorted sperm from the same ejaculate. Fertilization was achieved by two experimental protocols: 1) short gamete co-incubation length: 4, 8 and 12 hours; and 2) long gamete co-incubation length: 18 and 24 hours. After in vitro fertilization, ova were fixed and stained to identify early fertilization events. Sperm penetration,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine IVF; Co-incubation length; Early fertilization; Ovum pick up; Sex-sorted sperm. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001000005 |
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