Nitrogen balance, microbial protein synthesis and blood metabolites in fattening of male Bali cattle fed ration with different protein levels in smallholder farms
Abstract: Research was aimed
to determine nitrogen balance, microbial protein synthesis, and blood metabolites
of male Bali cattle fattening fed ration with different protein level in
smallholder farms North Central Timor, Province of East Timor Tenggara,
Indonesia. The cattle used were 18 heads aged 2 to 2.5 years with initial body
weight of 229.86±12.46 kg. The cattle were randomly divided into three
treatment groups. The T0 group was given feed the same as traditional fattening
cattle practices by farmers,T1 group fed ration containing 12% crude protein
(CP) and 72% total digestible nutrients (TDN), andT2 group fedration containing
15% CP and 72%TDN. Cattle were fed individually for 90 days and drinkingwater
ad libitum. The data were analyzedby analysis of variance.Results of research
indicated the nitrogen balance, and blood urea nitrogen between T1 and T2 were
relatively similar, but those were higher (P<0.05) than T0 . In contrast,
microbial proteins synthesis, and blood glucose at 0, 4, and 6 hours before and
after feeding were relatively similar between the groups. Blood glucose of T2
at 2 hours after intake were higher (P <0.05) than T0, but was not different
with T1 . It can be concluded, that the fattening maleBali cattle fed ration
containing 12% CP and 72% TDNimprovedthe nitrogen balance and blood
metabolites, butit was no positive effect on the microbial proteins and N
synthesis.
Keywords: Bali cattle;
fattening; microbial nitrogen; Nitrogen balance; protein synthesis; Smallholder
farms
Author: P. K. Tahuk, S. P. S.
Budhi, P. Panjono, E. Baliarti
Journal Code: jppeternakangg180001
