Economic viability of different diets for F1 Holstein x Zebu cows in milk production systems

The aim of this study was to evaluate different levels of feed restriction in the diet for F1 Holstein x Zebu cows during the winter on performance and economic viability. Data from Zootechnical book keeping, and from experiments conducted in the Experimental Field of Felixlândia, belonging to EPAMI...

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Detalles Bibliográficos
Autores: Pinheiro, Pâmella Gabriela Martins, Ruas, José Reinaldo Mendes, Gomes, Virgilio Mesquita, Silva, Edilane Aparecida da, Queiroz, Domingos Sávio, Rocha Júnior, Vicente Ribeiro, Carvalho, Cinara da Cunha Siqueira, Silva, Ariadne Freitas, Gonçalves Júnior, Ernane Antunes, Monção, Flávio Pinto
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:Brasil
Institución:Universidade Estadual de Londrina (UEL)
Repositorio:Semina. Ciências Agrárias (Online)
Idioma:inglés
OAI Identifier:oai:ojs.pkp.sfu.ca:article/45844
Acceso en línea:https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/45844
Access Level:acceso abierto
Palabra clave:Production cost
Profitability
Feed restriction
rossbred cows.
Custo de produção
Rentabilidade
Restrição alimentar
Vacas mestiças.
Descripción
Sumario:The aim of this study was to evaluate different levels of feed restriction in the diet for F1 Holstein x Zebu cows during the winter on performance and economic viability. Data from Zootechnical book keeping, and from experiments conducted in the Experimental Field of Felixlândia, belonging to EPAMIG, were used. Total lactation of sixty F1 Holstein x Zebu cows receiving different diets was analyzed, by 2.00%, 2.25%, 2.50%, 2.75% body weight (BW), and a control group (3.4%; no feed restriction), allowing 5% leftovers in relation to the dry matter supplied, distributed in a completely randomized design. Data on milk production and feed cost were collected, evaluating the different periods that characterize the lactation of an animal. The highest milk production was found in the diet levels 3.4 %, and 2.75% BW, 3,636.00, and 3,271.50 kg, respectively. Lower milk production was observed at levels of 2.50%; 2.25%; 2.00% BW, respectively. The highest feed cost was verified without feed restriction followed by the levels of 2.75%, 2.50%, 2.25%, and 2.00% BW. The supply of the no feed restriction diet resulted in a performance superior to levels 2.75; 2.50; 2.25; 2.00% BW. The items profit, profitability were similar between all treatments, indicating that, when there is occasional feed shortage, a restriction in the diet supply of up to 2% BW provides economic security to the rural producer.

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