We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Torta de girassol em raçôes de vacas em lactação: produção microbiana, produção, composição e perfil de ácidos graxos do leite.
- Authors
Sales Pereira, Elzãnia; Patrícia Guimarâes Pimentel; Delmondes Bomfim, Marco Aurélio; de Souza Carneiro, Maria Socorro; Duarte Cãndido, Magno José
- Abstract
The objective of this study was to evaluate the microbial production, production, composition and fatty acids profile of milk from dairy cows fed rations with growing levels of sunflower cake. Eight Girolando cows were used, averaging 515 kg of body weight. The experimental design was a 4 x 4 Latin square, in duplicate, where the factors consisted of the rates of sunflower cake inclusion in the concentrate portion (0, 7, 14 and 21%). A decreasing linear effect was observed for protein and fat production in milk and N urea content. Allantoin rates (mmol dayj were influenced by the levels of sunflower cake inclusion, with quadratic effect (p < 0.05). Uric acid, total purines, absorbed purines, microbial nitrogen and microbial synthesis were not affected (p > 0.05) by the levels of sunflower cake inclusion. A decreasing linear effect was observed with the levels of sunflower cake inclusion for palmitic acid (C16:0); no statistical differences were observed (p > 0.05) for the other fatty acids. The use of sunflower cake may represent an alternative feed for dairy cows, but does not alter the efficiency of microbial protein synthesis and fatty acids profile of milk.
- Subjects
MICROBIOLOGICAL synthesis; FATTY acids; EXPERIMENTAL design; MICROBIAL proteins; URIC acid
- Publication
Acta Scientiarum: Animal Sciences, 2011, Vol 33, Issue 4, p387
- ISSN
1806-2636
- Publication type
Article
- DOI
10.4025/actascianimsci.v33i4.11327