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| Takada,Luciana; Bicudo,Sony Dimas; Rodrigues,Carlos Frederico de Carvalho; Coelho,Lia de Alencar; Mendes,Luiz Claudio Nogueira; Perri,Sílvia Helena Venturoli. |
| The efficacy of estrus synchronization using short-term protocol was evaluated by ultrasound exams in Suffolk ewes during the pre-breeding season. The control Group (n = 12) was synchronized by treatment for 12 days with vaginal sponges impregnated with medroxyprogesterone acetate, and 400 IU eCG at sponge withdrawal. Experimental groups I, II and III kept the sponge in place for 4 days, and 100 µg of PGF2a was administered at sponge withdrawal. Additionally, Group I (n = 12) had 0.1 mg of estradiol benzoate (EB) administered during sponge placement and 50 µg of GnRH 48 hours after sponge removal. Group II (n = 6) had 35 mg of progesterone (P4) injected, and 0.1 mg of EB administered during sponge placement, 400 IU eCG at withdrawal and 48 hours after, 50... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ECG; Estradiol benzoate; Follicular dynamics; Progesterone. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200012 |
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| Freitas,Priscila Ribeiro Corradi; Coelho,Sandra Gesteira; Rabelo,Euler; Lana,Ângela Maria Quintão; Artunduaga,Maria Alexandra Torres; Saturnino,Helton Mattana. |
| Forty Holstein cows, with previous reproductive problems, empty, at second or more lactations, with an average milk production of 9,200 kg in the previous lactation and a dry period over than 50 days were distruibuted in two groups to evaluate two protocols of milking induction. It was given to group 1, on days one, eight and 21 recombinant bovine somatotropin-bSTr (500 mg); from day two to eight, estradiol cypionate (0.075 mg/kg BW) and medroxi progesterone acetate (0.25 mg/kg BW); from days nine to 15, estradiol cypionate (0.037 mg/kg BW); on day 19, prostaglandin F2α (0.530 mg) and from days 19 to 21, isoflupredone acetate (0.05 mg/kg BW). Group two was given, on days one, eight and 21, bSTr (500 mg), from days 2 to 15, estradiol benzoate (0.071 mg/kg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estradiol benzoate; Estradiol cypionate; Milk production; Somatotropin. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001000024 |
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