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Provedor de dados:  Scientia Agricola
País:  Brazil
Título:  Decoquinate, lasalocid and monensin for starter feeds and the performance of holstein calves to 20 weeks of age
Autores:  Nussio,Carla Maris Bittar
Huber,John Tal
Nussio,Luiz Gustavo
Data:  2002-09-01
Ano:  2002
Palavras-chave:  Coccidiostats
Feed efficiency
Weight gain
Resumo:  The large utilization of coccidiostats in dairy herds has raised the question regards the best product to use, based on better animal performance. Sixty-four Holstein calves were randomly assigned to four treatments at 10 (±4) d of age to evaluate calf performance when fed approved coccidiostats available on the market in Arizona, USA. Calves received a dry calf starter without (control) or with one of the following coccidiostats: lasalocid, 30 mg kg-1; decoquinate, 19 mg kg-1; and monensin, 30 mg kg-1. Calves received 3.6 kg d-1 of a commercial 22% CP:20% fat milk replacer until 6 wk of age. Calves were offered starter "ad libitum" up to 2 kg d-1, and calves had free access to water throughout the trial. Alfalfa hay was offered "ad libitum" after weaning. Performance and dry matter intake (DMI) were monitored for 20 weeks and broken down in different periods of measurement (0-6, 7-12 and 13-20 weeks, respectively). Despite the lower dry matter intake and weight gain for females on monensin treatment during the whole period, differences among coccidiostats were seldom observed under the conditions of this study. Good calf management and the dry, hot climate of Arizona perhaps diminished the chances for subclinical and chronic disease appearance which negated potential differences and differences in calf performances.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação:  10.1590/S0103-90162002000300002
Formato:  text/html
Fonte:  Scientia Agricola v.59 n.3 2002
Direitos:  info:eu-repo/semantics/openAccess

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