Luzardo Santiago, Banchero Georgget, Ferrari Virginia, Ibáñez Facundo, Roig Gonzalo, Aznárez Valentín, Clariget Juan, La Manna Alejandro
Programa de Producción de Carne y Lana y Plataforma Agroalimentos, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental INIA Tacuarembó, Ruta 5 km 386, Tacuarembó 45000, Uruguay.
Programa de Producción de Carne y Lana, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental INIA La Estanzuela, Ruta 50 km 11, Colonia 70000, Uruguay.
Animals (Basel). 2021 Nov 23;11(12):3338. doi: 10.3390/ani11123338.
The use of fruit by-products such as citrus pulp represents a feeding ingredient that deserves to be evaluated as an energy source in animal rations. Thirty-six British breed steers were allotted to one of the three feeding treatments (12 steers/treatment): 0%, 15% and 30% of fresh citrus pulp inclusion in the ration in a randomized complete block design to evaluate animal performance and carcass and meat quality traits. In the present study, the inclusion of fresh citrus pulp up to 30% of the diet did not affect the animal average daily gain ( > 0.05) but steers that were fed the pulp consumed less feed ( < 0.05) and presented a lower feed conversion ratio ( < 0.05) than their counterparts without citrus pulp in their diet. No effect of fresh citrus pulp was observed on carcass and meat quality ( > 0.05). A greater lipophilic antioxidant capacity ( < 0.05) in meat was observed when fresh citrus pulp was offered at 15% of the diet. Fresh citrus pulp used up to 30% as a feed ingredient in feedlot rations does not negatively affect animal performance or meat quality but, rather, has a positive effect on dry matter intake and a better feed conversion ratio.
使用柑橘果肉等水果副产品作为饲料成分,值得作为动物日粮中的能量来源进行评估。36头英国品种的阉牛被随机分配到三种饲养处理中的一种(每组12头):日粮中新鲜柑橘果肉的添加比例分别为0%、15%和30%,采用随机完全区组设计来评估动物性能、胴体和肉质性状。在本研究中,日粮中新鲜柑橘果肉添加量高达30%时,对动物平均日增重没有影响(P>0.05),但与日粮中不添加柑橘果肉的阉牛相比,采食柑橘果肉的阉牛采食量减少(P<0.05),饲料转化率更低(P<0.05)。未观察到新鲜柑橘果肉对胴体和肉质有影响(P>0.05)。当新鲜柑橘果肉在日粮中的添加比例为15%时,肉中的亲脂性抗氧化能力更强(P<0.05)。在育肥牛日粮中,新鲜柑橘果肉作为饲料成分使用量高达30%时,不会对动物性能或肉质产生负面影响,反而对干物质采食量有积极影响,并能提高饲料转化率。