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本试验以荧光灯作为对照,研究了不同光谱组合LED灯(A(21%蓝+30%绿+24%黄+25%红)、B(35%蓝+35%绿+18%黄+12%红)、C(27%蓝+30%绿+22%黄+21%红))对AA肉鸡的生长、屠宰性能和抗应激的影响。试验选取480只1日龄AA肉鸡,平均分配到4个光照处理组,每个处理4个重复,每个重复30只鸡(公母各半),自由采食和饮水。第1周光照强度为20 lx,从第2周开始至试验结束为5 lx,间歇光照节律(14L:4D:2L:4D)。结果表明,B光源组1~2周平均日增重分别比A、C和荧光灯组显著降低了15.05%、14.40%和20.47%(P<0.05);C光源组3~5周平均日增重分别比A光源和荧光灯组降低了8.62%和9.39%(P<0.05);且B光源组1~6周平均日增重与其他组相比有减小的趋势(P=0.06)。B光源组1~2周平均日采食量和料重比显著低于和高于其他3组(P<0.05)且1~6周的料重比与其他组相比有增大的趋势(P=0.09)。C光源组3~5周料重比显著高于B光源(P<0.05)。荧光灯组腹脂重和脂带宽显著低于B和C光源组(P<0.05);C光源组腿肌率显著高于A和B光源组(P<0.05);A光源组SOD值和荧光灯组T-AOC值显著提高(P<0.05)。C光源组H:L显著高于A和D光源组(P<0.05)。研究结果显示,A光源和荧光灯均有利于白羽肉鸡生产性能的发挥,同时提高抗氧化能力,缓解肉鸡的应激反应。从节能的角度考虑,肉鸡实际生产中可采用均衡型光谱组合LED灯更有利于生产效率的提高。
In this experiment, fluorescent lamps were used as control to study the effects of different spectral combinations of LED lamps (A (21% blue + 30% green + 24% yellow + 25% red) Red), C (27% Blue + 30% Green + 22% Yellow + 21% Red) on AA broiler growth, slaughter performance and anti-stress. A total of 480 1-day-old AA broiler chickens were randomly divided into 4 light treatment groups. Each treatment consisted of 4 replicates, each with 30 chickens (half male and female), ad libitum and water intake. Light intensity was 20 lx in the first week and was 5 lx from the second week to the end of the experiment. Intermittent photoperiod (14L: 4D: 2L: 4D). The results showed that average daily gain of B light source group decreased by 15.05%, 14.40% and 20.47% respectively (P <0.05) at 1 ~ 2 weeks, Respectively, decreased by 8.62% and 9.39% respectively compared with those of A light source and fluorescent lamp group (P <0.05). The mean daily gain of 1 to 6 weeks in B light source group had a decreasing trend compared with other groups (P = 0.06). The average daily feed intake (FGR) and material-to-weight ratio of 1 to 2 weeks in B light source group were significantly lower than those in the other 3 groups (P <0.05), and the material weight ratio in 1 to 6 weeks tended to increase compared with other groups P = 0.09). The C / W ratio of C light source group was significantly higher than that of B light source (P <0.05) at 3-5 weeks. The abdominal fat weight and the lipid bandwidth of the fluorescent group were significantly lower than those of the B and C light sources (P <0.05). The leg muscle percentage of the C light source group was significantly higher than that of the A and B light source groups (P <0.05) T-AOC values increased significantly (P <0.05). C: Light source group H: L was significantly higher than that of A and D light source groups (P <0.05). The results show that A light source and fluorescent lamp are conducive to the performance of white feather broilers to play, while improving antioxidant capacity to alleviate the stress response of broilers. From the energy point of view, the actual production of broilers can be balanced spectrum combination LED lights more conducive to the improvement of production efficiency.