College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Av. Senador Filinto Muller, 2443, Vila Ipirang, Campo Grande, Mato Grosso do Sul, 79074-460, Brazil.
Brazilian Agricultural Research Corporation - EMBRAPA Beef Cattle, 79106-550, Campo Grande, Mato Grosso do Sul, Brazil.
Trop Anim Health Prod. 2021 Apr 15;53(2):262. doi: 10.1007/s11250-021-02712-4.
We hypothesized that by-products from biodiesel production like crambe meal (Crambe abyssinica) totally replace soybean meal (Glycine max) and crude glycerin could partially replace corn (Zea mays). Our aim was to evaluate different supplements with combinations of crambe meal and crude glycerin replacing soybean meal or corn on performance and carcass traits of finishing heifers. Sixty Nellore heifers 18 months old were used, and 298.96 ± 21.99 kg of body weight allotted in Brachiaria brizantha pastures. All heifers were distributed in a randomized complete block design, with four treatments being the following supplements: corn + soybean meal (CS), corn + crambe meal (CCr), corn + soybean meal + crude glycerin (CSG), corn + crambe meal + crude glycerin + (CCrG). The animals were distributed in four paddocks of 13 hectares each, in a continuous grazing system. We evaluated pasture characteristics, intake, performance, carcass traits, characteristics, and centesimal composition of Longissimus thoracis muscle. There was an effect (P < 0.05) of inclusion of crambe meal on the performance of the animals for slaughter weight and daily gain. The supplement containing corn + soybean meal (CS) presented better conversion rates and food efficiency. There was an effect of inclusion of crambe meal and crude glycerin on the centesimal composition of Longissimus thoracis muscle. The use of crambe meal and crude glycerin as alternative sources from the agro-industry of biodiesel in concentrate supplement for finishing heifers in pastures can promote positive effects related to productive performance and carcass characteristics.
我们假设生物柴油生产的副产品，如荠蓝粉（Crambe abyssinica）可以完全替代豆粕（Glycine max），而粗甘油可以部分替代玉米（Zea mays）。我们的目的是评估荠蓝粉和粗甘油替代豆粕或玉米的不同组合对育肥小母牛生产性能和胴体性状的影响。选用 60 头 18 月龄的尼里-拉菲水牛，初始体重为 298.96 ± 21.99kg，在臂形草牧场上进行。所有小母牛均采用完全随机区组设计，分为 4 个处理组，即以下 4 种日粮：玉米+豆粕（CS）、玉米+荠蓝粉（CCr）、玉米+豆粕+粗甘油（CSG）、玉米+荠蓝粉+粗甘油（CCrG）。动物被分配到 4 个 13 公顷的围场中，采用连续放牧系统。我们评估了牧草地特性、采食量、生产性能、胴体性状、肉质特性和胸最长肌的百分组成。荠蓝粉的添加对屠宰体重和日增重的生产性能有影响（P<0.05）。含有玉米+豆粕（CS）的日粮的转化率和饲料效率更好。荠蓝粉和粗甘油的添加对胸最长肌的百分组成有影响。在牧草地中使用荠蓝粉和粗甘油作为生物柴油农业产业的替代来源，添加到育肥小母牛的浓缩饲料中，可以对生产性能和胴体特征产生积极影响。
