Feeding microalgae (Schizochytrium limacinum) to beef steers increases meat omega-3 content
| Autor: | Mateus Alan Demeda, Cristiane Regina Tomaluski, Lenise Freitas Mueller, Karina Aline Mateus, Tiago Goulart Petrolli, Cintiamara Baggio, Claiton André Zotti, Angélica Simone Cravo Pereira, Letieri Griebler |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Beef cattle
Silage Omega Carcaça fatty acids lcsh:Social Sciences 03 medical and health sciences Animal science carcass traits Ácidos graxos Gado de corte Dry matter Schizochytrium limacinum Fatty acids lcsh:Science (General) beef cattle Ácidos grasos 030304 developmental biology General Environmental Science chemistry.chemical_classification 0303 health sciences lcsh:LC8-6691 biology lcsh:Special aspects of education 0402 animal and dairy science Fatty acid food and beverages 04 agricultural and veterinary sciences Carcass traits biology.organism_classification 040201 dairy & animal science lcsh:H chemistry General Earth and Planetary Sciences Ganado vacuno Canal lcsh:Q1-390 |
| Zdroj: | Research, Society and Development, Vol 9, Iss 7, Pp e675974568-e675974568 (2020) Research, Society and Development; Vol. 9 No. 7; e675974568 Research, Society and Development; Vol. 9 Núm. 7; e675974568 Research, Society and Development; v. 9 n. 7; e675974568 Research, Society and Development Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
| ISSN: | 2525-3409 |
| Popis: | New alternatives to increase the content of polyunsaturated beef fat are necessary. Feed supplements like microalgae are a strategy to enrich meat with omega 3. The aim of the study was to evaluate growth performance, fatty acid profile of meat and carcass characteristics of steers fed with microalgae in the diet. Sixteen steers (mean weight 299.6 ± 7.4 kg, seven months) were randomly assigned to two groups: the control group (CTL) and the microalgae group (ALG; daily feeding of 1.7% of dry matter as microalgae). The diet (40% corn silage and 60% concentrate) was offered twice daily for 84 days. Microalgae supplementation was associated with a 4.44-fold increase in total omega-3 fatty acids in the longissimus thoracis and lumbar muscle, reflecting a 3.6-fold reduction in the omega-6: omega-3 ratio. The concentration of 20: 5n3 and 22: 6n3 increased by 7 and 20.5 times, respectively, with the addition of microalgae. However, microalgae decreased the consumption of dry matter (P |
| Databáze: | OpenAIRE |
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