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- Title
DESEMPENHO DE BOVINOS DE CORTE EM CONFINAMENTO ALIMENTADOS COM DIFERENTES FORRAGENS E ALOJADOS EM BAIAS INDIVIDUAIS OU COLETIVAS.
- Authors
Schwartz Custodio, Sergio Antonio; da Silva, Diego Azevedo Leite; de Oliveira Goulart, Rodrigo; Dias, Kaique Moreira; do Prado Paim, Tiago; de Carvalho, Eduardo Rodrigues
- Abstract
forages play a key role on the performance of beef cattle in feedlot systems. Twenty-four non-castrated F1 Red Norte × Nelore males with an average initial body weight (BW) of 439.8 ± 59.6 kg and 21.7± 2.7 months of age were distributed in three experimental groups, and housed either in individual or collective pens (twelve animals in individual pens and twelve in three collective pens) at the Dairy and Beef Research and Education Center of the School-Farm of IF Goiano (Iporá Campus). The experiment lasted 84 days (14 days for adaptation and 70 days for data collection). Animals were fed once daily with diets containing sugar cane in natura (Ci), sugar cane silage (SC) or corn silage (CS) as sources of forage in amounts that ensured 10 to 15% of orts. Feed refusals were measured daily and dry matter intake (DMI) was determined by difference, BW was recorded every two weeks after a twelve-hour fasting period. There was no effect (P>0.05) of source of forage on DMI in animals housed in individual pens, as well as there was no response (P>0.05) of source of forage on growth performance. There was a tendency (P = 0.09) of BW increase in animals housed in individual pens (561.4 ± 21.2 kg) compared with collective pen-housing (509 ± 21.2 kg). Sources of forage did not alter (P>0.05) carcass traits. Animals housed in individual pens increased (P<0.05) empty gastrointestinal tract weight (11.9 kg) compared with animals housed in collective pens (10.2 kg). There was a tendency (0.05≤P≤0.10) of increase in pre-slaughter BW, full gastrointestinal tract weight and liver weight in animals housed in individual pens in comparison with collective pens. Ci, SC and CS can be recommended for beef cattle feeding in feedlot systems.
- Publication
Archives of Veterinary Science, 2018, Vol 23, Issue 1, p33
- ISSN
1517-784X
- Publication type
Article