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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Performance, carcass characteristics and meat quality of Nellore cattle supplemented with supranutritional doses of sodium selenite or selenium-enriched yeast

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Author(s):
Silva, J. S. [1] ; Rodriguez, F. D. [2] ; Trettel, M. [1] ; Abal, R. T. [1] ; Lima, C. G. [1] ; Yoshikawa, C. Y. C. [3] ; Zanetti, M. A. [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Coll Anim Sci & Food Engn, Dept Anim Sci, BR-13635900 Pirassununga - Brazil
[2] Univ Corp Huila Corhuila, Coll Vet Med & Allied Sci, Neiva - Colombia
[3] Univ Fed Sao Paulo, Dept Biosci, BR-11015020 Santos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ANIMAL; v. 14, n. 1, p. 215-222, JAN 2020.
Web of Science Citations: 1
Abstract

The enrichment of meat with selenium is important to improve the intake of selenium by humans. The effects of supranutritional doses of sodium selenite or selenium-enriched yeast on performance, carcass characteristics and meat quality were evaluated using 63 Nellore cattle in a completely randomized design with two sources (sodium selenite and selenium-enriched yeast), three levels (0.3, 0.9 and 2.7 mg Se/kg DM) and control treatment (without addition of selenium). Final body weight (BW), average daily gain, dry matter intake and gain to feed ratio (G : F) at the end of 84 days of supplementation were not influenced by treatments (P>0.05). Values of pH, ribeye area, back fat thickness and marbling score were also not influenced by treatments (P>0.05). Dressing percentage was greater (P=0.02) in Nellore cattle supplemented with organic Se (58.70%) compared to animals supplemented with inorganic Se (57.94%). Hot carcass weight increased (P=0.05) with the increasing of Se levels in the diet. Colour, shear force (SF), cooking and drip loss remained unchanged (P>0.05); however thiobarbituric acid reactive substances was 15.51% higher with inorganic Se compared with organic Se. The selenium concentration in the meat of animals receiving organic selenium was higher (P<0.001) than that of animals receiving sodium selenite, at all levels (0.3; 0.9 and 2.7 mg/kg DM). The meat of animals receiving 2.7 mg of organic Se/kg of DM presented concentration of 372.7 mu g Se/kg in the L.dorsi muscle, and the intake of 150 g of this meat by humans provides approximately 100% of the recommended Se intake (55 mu g Se/day for adults). Therefore, the use of supranutritional doses of 2.7 mg Se/kg of DM, regardless of source, is a way of naturally producing selenium-enriched meat without compromising performance, carcass characteristics and quality of Nellore bovine meat. (AU)

FAPESP's process: 15/07175-6 - Influence of supplementation of two sources of selenium on meat quality from confined beef cattle
Grantee:Marcus Antonio Zanetti
Support type: Regular Research Grants