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Vol. 30 No. 1 (2022)

Published: 2021-12-17

Cover page

Cover
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Editor's Foreword

Message of the Editor

Ali Saadoun

i-iv
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Opinion

Recognition to reviewers

Managing Editor

77
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Original paper

Effect of frequency of protein energy supplementation on the performance of Nelore steers during the dry season

Luiz Fernandes Montes, Milton Ghedini Cardoso, Marcos Aurélio Lopes, Adilson de Paula Almeida Aguiar, Joana Resende Paglis Brunoro, Henrique Salomão Queiroz, Mônica Auxiliadora Mesquita Cardoso

1-7
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Prediction of dry matter intake and average daily gain of the LRNS (1.0.33) and NRC (2000) nutritional models in confined bulls in Paraguay

Guido Arnaldo Portillo, Diego Avilio Ocampos Olmedo, Pedro Luis Paniagua Alcaraz , Luis Alberto Alonzo Griffith

9-17
Response of tall fescue free and infected with endophyte in pure pastures and in mixture with legumes under two frequencies of defoliation

Lucas Ricardo Petigrosso, María Irastorza, Osvaldo Ramón Vignolio, Silvina San Martino, Mabel Noemí Colabelli, Silvia Graciela Assuero

19-28
Probability of pregnancy before ninety days postpartum in water buffaloes

Hector Nava-Trujillo, Robert Valeris-Chacin, Adriana Morgado-Osorio, Javier Hernández, Janeth Caamaño, Armando Quintero Moreno

29-34
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Detection of anthelmintic resistance in nematodes infecting dairy heifers in Puerto Rico

Lorraine López-Soberal, Aníbal Ruiz-Lugo, Melvin Pagán-Morales, Esbal Jiménez-Cabán, Guillermo Ortiz-Colón

35-41
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ALPA bylaws

Managing Editor

43-58
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Instruction to authors (E)

Managing Editor

59-64
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Instructions to authors (P)

Managing Editor

65-70
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Instructions to authors (I)

Managing Editor

71-76
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El Carbon cycle of native pasture-based beef cattle production systems in the Pantanal area of the Paraguayan Chaco

Diego Avilio Ocampos Olmedo, Pedro Luis Paniagua, Luis Alberto Alonzo Griffith, Guido Arnaldo Portillo