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Atypical bovine interstitial pneumonia in a semi-intensive beef cattle system Ciência Rural
Coelho,Ana Carolina Barreto; Oliveira,Plínio Aguiar; Santos,Bianca Lemos dos; Estima-Silva,Pablo; Scheid,Haide Valeska; Leal,Sofia del Carmen Bonilla de Souza; Marcolongo-Pereira,Clairton; Schild,Ana Lucia.
ABSTRACT: The aim of the present study was to describe an outbreak of atypical interstitial pneumonia affecting 15 Angus cattle aged 7-30 months in the south of Rio Grande do Sul. The clinical course of the disease was approximately 1-3 days. The cattle were kept in the native field and had received feed containing the remains of wafers from a food factory before the outbreak. Clinical signs included dyspnea and abdominal breathing, with a clinical evolution period of up to 3 days. Nine animals presented apathy and respiratory difficulty and died within 24h, while three animals exhibited a clinical evolution period of 36-48h. Three other animals died without any clinical signs. The main macroscopic lesions were observed in the lungs, which did not collapse...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pulmonary edema; Emphysema; Respiratory disorder; Cattle; Hypersensitivity; Interstitial pneumonia.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100551
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Effect of the ovulatory follicle diameter and progesterone concentration on the pregnancy rate of fixed-time inseminated lactating beef cows R. Bras. Zootec.
Pfeifer,Luiz Francisco Machado; Leal,Sofia del Carmen Bonilla de Souza; Schneider,Augusto; Schmitt,Eduardo; Corrêa,Marcio Nunes.
The objective of this study was to evaluate the influence of the ovulatory follicle diameter on the reproductive performance of lactating beef cows subjected to low progesterone fixed-time artificial insemination (FTAI) protocols. Ninety-three lactating beef cows (60-80 days postpartum) at random stages of estrous cycle were given a luteolytic dose of prostaglandin F2α (500 μg cloprostenol; PGF) twice, 11 d apart. Ten days after the second PGF treatment, cows were given 1.5 mg of estradiol benzoate im and a progesterone-releasing intravaginal device (Cue-Mate) with a single pod containing 0.78 g progesterone (Day 0). Cows received another luteolytic dose of PGF on Day 0. On Day 8, the Cue-Mate was removed. Fifty-four to 56 hours later, cows received 12.5...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Corpus luteum; Fertility; Post-partum cows; Progesterone.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400024
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