title: Effect of an allostatic modulator on stress blood indicators and meat quality of commercial young bulls in Mexico.
abstract: To assess the effect of an allostatic modulator (AM) on stress blood indicators and meat quality traits, the feed of 80 non-castrated 18-20 month-old bulls was supplemented with 10 g/day of an AM for 30 days before slaughter. Another 80 bulls served as control animals. The AM was comprised of ascorbic acid, acetoxybenzoic acid and sodium and potassium chloride. Blood samples were taken at slaughter for analyses of hematocrit value, erythrocyte and leukocyte counts, and glucose, lactate and cortisol concentrations. Post-mortem measures of meat color and pH were made at 24h and color, shear force and cooking loss on meat from 20 animals at 28 days. The AM supplementation resulted in lower hematocrit value, erythrocyte count and glucose level (P<0.05), higher a* (P<0.0001) and b* (P<0.0001) at 24h and lower b* (P<0.05) at 28 days. Thus AM treatment improved some stress blood indicators and meat color and therefore merits further investigation.
authors.affiliation: Meat Science Laboratory, Centro de Enseñanza Práctica e Investigación en Producción y Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Cruz Blanca 486, San Miguel Topilejo, Mexico DF 14500, Mexico. Electronic address: msalud@unam.mx.
authors.forename: M S
authors.initials: MS
authors.lastname: Rubio Lozano
authors.affiliation: Pathology Department, Facultad de Medicina Veterinaria y Zootecnia, Avenida Universidad 3000, Circuito Exterior, Ciudad Universitaria, Del. Coyoacán, Mexico DF 04150, Mexico.
authors.forename: R D
authors.initials: RD
authors.lastname: Méndez Medina
authors.affiliation: Meat Science Laboratory, Centro de Enseñanza Práctica e Investigación en Producción y Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Cruz Blanca 486, San Miguel Topilejo, Mexico DF 14500, Mexico.
authors.forename: K
authors.initials: K
authors.lastname: Reyes Mayorga
authors.affiliation: Meat Science Laboratory, Centro de Enseñanza Práctica e Investigación en Producción y Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Cruz Blanca 486, San Miguel Topilejo, Mexico DF 14500, Mexico.
authors.forename: M E
authors.initials: ME
authors.lastname: Rubio García
authors.affiliation: Meat Science Laboratory, Centro de Enseñanza Práctica e Investigación en Producción y Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Cruz Blanca 486, San Miguel Topilejo, Mexico DF 14500, Mexico.
authors.forename: M A
authors.initials: MA
authors.lastname: Ovando
authors.affiliation: Food Research and Development Centre, Agriculture and Agri-Food Canada, 3600 Boul. Casavant Ouest, Saint-Hyacinthe, Québec J2S 8E3, Canada.
authors.forename: T M
authors.initials: TM
authors.lastname: Ngapo
authors.affiliation: Ethology and Wildlife Department, Facultad de Medicina Veterinaria y Zootecnia, Avenida Universidad 3000, Circuito Exterior, Ciudad Universitaria, Del. Coyoacán, Mexico DF 04150, Mexico.
authors.forename: F A
authors.initials: FA
authors.lastname: Galindo Maldonado
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use*; D001205:Ascorbic Acid / Q000627:therapeutic use; D001241:Aspirin / Q000627:therapeutic use; D015415:Biomarkers / Q000097:blood; D002417:Cattle; D055598:Chemical Phenomena; D003296:Cooking; D003433:Crosses, Genetic; D004032:Diet / Q000662:veterinary*; D063427:Food Quality; D006863:Hydrogen-Ion Concentration; D008297:Male; D008460:Meat / Q000032:analysis*; D055595:Mechanical Phenomena; D008800:Mexico; D018482:Muscle, Skeletal / Q000737:chemistry / Q000187:drug effects / Q000276:immunology / Q000378:metabolism*; D010860:Pigments, Biological / Q000032:analysis / Q000096:biosynthesis; D011189:Potassium Chloride / Q000627:therapeutic use; D033081:Shear Strength; D017673:Sodium Chloride, Dietary / Q000627:therapeutic use; D013312:Stress, Physiological / Q000187:drug effects; D013315:Stress, Psychological / Q000097:blood / Q000276:immunology / Q000378:metabolism / Q000517:prevention & control*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D015415:Biomarkers; D010860:Pigments, Biological; D017673:Sodium Chloride, Dietary; D011189:Potassium Chloride; D001205:Ascorbic Acid; D001241:Aspirin
keywords: Acetoxybenzoic acid (PubChem CID: 2244); Allostasis; Allostatic modulator; Ascorbic acid (PubChem CID: 54670067); Beef; Blood stress indicator; Meat quality; Potassium chloride (PubChem CID: 4873); Sodium chloride (PubChem CID: 5234)