Resumen

MENDOZA-CARRILLO, José; MARTINEZ-YANEZ, Rosario; DIAZ-PLASCENCIA, Daniel  y  AVILA-RAMOS, Fidel. Effect of body condition of Holstein cows on water holding capacity, insoluble collagen and shear force in Longissimus dorsi. Abanico vet [online]. 2015, vol.5, n.2, pp.19-27. ISSN 2448-6132.

Body condition (CC) is a form direct for to determine the general condition of cows. The aim of this research was to evaluate the effect of body condition of Holstein cows sent to trail on technological quality of Longissimus dorsi. 180 cows from 24 to 36 months of ages were rated with body condition (CC), 10 min post mortem a sample was taken from muscle Longissimus dorsi (LD) to determine water holding capacity (CRA), shear force (FC) 1, 5, 10, 15 and 20 days and insoluble collagen (CI) by alkaline degradation in mg and %. The CRA, FC and CI were adjusted to a model considering the body condition of cows as fixed effects, their correlation were analyzed and the comparison of means were performed with polynomial contrasts. The results showed no difference in CRA of Longissimus dorsi in dairy cows with different CC, there was no correlation in the midst CRA with EC, CI and CC. By increasing the days of the meat maturation the EC was lower 1, 5, 10, 15 y 20 (P≤0.05) without effect of the CC. The results of insoluble colagen indicates less collagen when the body condition of cows increase (P≤0.05). In conclusion, the body condition of cows were no a measure correct to determine of water holding capacity and shear force, but it can be effect in the insoluble collagen of Longissimus dorsi.

Palabras llave : meat quality; nutritional balance; body condition.

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