Accuracy and physical characteristics of total mixed rations and feeding sorting behavior in dairy herds of Castro, Paraná
2021; Sociedade Brasileira de Zootecnia; Volume: 50; Linguagem: Inglês
10.37496/rbz5020200174
ISSN1806-9290
AutoresJorge Henrique Carneiro, Junio Fabiano dos Santos, Rodrigo de Almeida,
Tópico(s)Effects of Environmental Stressors on Livestock
ResumoThe objective of this study was to assess the accuracy of the content of total mixed rations (TMR) offered to high-producing cows from 20 dairy herds of Castro, Paraná State, Brazil. The average milk yield during the sample collection period was 38.0±6.8 kg/day, with 3.47±0.25% milk fat and 3.05±0.18% milk protein. The particle size distribution of samples of fresh diet and leftovers was evaluated using the Penn State Particle Separator (PSPS) and chemical analysis was also conducted. The TMR [...]
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