Comparación de dos dietas en terneros de engorde: Dieta convencional (pienso y paja) vs. unifeed
Cortés Lacruz, Xavier
Morazán Nuñez, Henris Jobany
MetadataShow full item record
A Total Mixed Ration (TMR, 60 % forage; 23 % NDF) has been compared with Control diet (commercial concentrate (93%) and straw (7%)). Twenty-five beef heifers weaned at 8 months (12 Control, 13 TMR) were controlled during a 120-day fattening period. Intake was controlled daily by diet. Individual weight was recorded every 21 days. At the same control days blood samples were taken and urea, glucose and non-esterified fatty acids (NEFA) were analysed. Carcass quality and meat color and composition were recorded at slaughter time. Intake was higher in the Control diet, and combined with a low protein level in the TMR (12% vs. 17%) produced a lower average daily gain (20%, p<0.05) in TMR. Glucose and NEFA levels indicated that TMR ration was adjusted for energy requirements of the animals but urea levels showed that TMR diet had some limitation in protein whereas Control diet had an excess. No relevant differences where detected in carcass quality except a slightly lower carcass fat. No differences in muscle or fat colour were detected. The use of on-farm forages in the TMR diet reduces the feeding cost by 43 % compared with the costs of the control diet.
Is part ofXV Jornadas sobre Producción Animal : 42 jornadas de estudio : 14 y 15 de mayo de 2013, Zaragoza, tomo I, p. 61-63
European research projects
Showing items related by title, author, creator and subject.
Trade-offs among growth performance, nutrient digestionand carcass traits when feeding low protein and/or highneutral-detergent fiber diets to growing-finishing pigs Morazán Nuñez, Henris Jobany; Álvarez Rodríguez, Javier; Seradj, Ahmad Reza; Balcells Terés, Joaquim; Babot Gaspa, Daniel (Elsevier, 2015-08-01)This study evaluated the effects of reducing dietary crude protein (CP) and increasingneutral detergent fiber (aNDFom) on growth performance, nutrient digestibility, manurecomposition and carcass parameters of lean pigs ...
Nutritional strategies to cope with reduced litter weight gain and total tract digestibility in lactating sows Álvarez Rodríguez, Javier; Mir, L.; Seradj, Ahmad Reza; Morazán Nuñez, Henris Jobany; Balcells Terés, Joaquim; Babot Gaspa, Daniel (Wiley, 2017-09-15)Twelve lactating sows were used to evaluate the effects of reducing dietary crude protein (CP) (14% vs. 12%) and increasing neutral detergent fibre (NDF) levels (18% vs. 22%) on litter performance, total tract ...
The impact of reducing dietary crude protein and increasing total dietary fiber on hindgut fermentation, the methanogen community and gas emission in growing pigs Seradj, Ahmad Reza; Balcells Terés, Joaquim; Morazán Nuñez, Henris Jobany; Álvarez Rodríguez, Javier; Babot Gaspa, Daniel; de la Fuente Oliver, Gabriel (Elsevier, 2018-09-17)Sixty-four cross bred 6 week-old intact male pigs (initial BW=13.8 ± 2.3 kg) were randomly distributed to 4 separated modules using a three-phase feeding program in which two dietary crude protein (CP) and total dietary ...