Legendre H, Saratsi K, Voutzourakis N, Saratsis A, Stefanakis A, Gombault P, Hoste H, Gidenne T, Sotiraki S
GenPhySE, Université de Toulouse, INRA, ENVT, Castanet-Tolosan, France.
Laboratory of Parasitology, Veterinary Research Institute, Hellenic Agricultural Organization Demeter, Thermi, 57001, Thessaloniki, Greece.
Parasitol Res. 2018 Dec;117(12):3705-3713. doi: 10.1007/s00436-018-6069-2. Epub 2018 Sep 18.
The potential anti-eimerial effect of tannin containing resources such as sainfoin and carob in rabbits was tested on does at pre-weaning and to growing rabbits in their feed. The trial began at parturition (D0), when 24 does and their litters were assigned into three groups. They were fed either with a control (Group CO), a carob (containing 10% carob pods meal) (Group CP) or a sainfoin diet (containing 34% dehydrated sainfoin pellets) (Group SA). All diets were made isoproteic and isoenergetic and also balanced for crude fibre but differed by their tannin content. Weaning occurred at D37, and growing rabbits remained in the same cage until D51. Then, they were transferred to fattening cages until the end of the trial (D104) and slaughtering. Weight gain of young rabbits among the three groups (mean = 31.2 g/day) did not differ statistically. The mortality rates were 10% (SA), 15% (CP) and 20% (CO), respectively, but the differences were not statistically significant. Post-weaning economical feed conversion ratio (FCR) was reduced between rabbits of group SA compared to CO and CP groups. Faecal oocyst count (FOC) in group SA was 60% lower than in CO and CP groups. Areas under the curve (AUCs) calculated between sampling days and FOC, after transfer to fattening cages, was 62% lower in group SA than in CO and CP groups. The main Eimeria species identified (from D59 to D83) was Eimeria magna (53% of oocysts). AUCs for E. magna did not differ according to diet. In conclusion, the diet containing sainfoin reduced oocyst excretion of Eimeria spp. by 60%, and improved the economical FCR.
在断奶前的母兔以及生长阶段的幼兔饲料中，测试了红豆草和角豆树等含单宁资源对家兔潜在的抗艾美耳球虫作用。试验于分娩时（D0）开始，将24只母兔及其幼崽分为三组。分别给它们饲喂对照日粮（CO组）、角豆树日粮（含10%角豆荚粉）（CP组）或红豆草日粮（含34%脱水红豆草颗粒）（SA组）。所有日粮的蛋白质和能量含量相同，粗纤维含量也保持平衡，但单宁含量不同。37日龄时断奶，生长阶段的幼兔在同一笼中饲养至51日龄。然后，将它们转移到育肥笼中直至试验结束（104日龄）并进行屠宰。三组幼兔的体重增加（平均=31.2克/天）在统计学上没有差异。死亡率分别为10%（SA组）、15%（CP组）和20%（CO组），但差异无统计学意义。与CO组和CP组相比，SA组断奶后幼兔的经济饲料转化率（FCR）有所降低。SA组的粪便卵囊计数（FOC）比CO组和CP组低60%。转移到育肥笼后，在采样日和FOC之间计算的曲线下面积（AUC），SA组比CO组和CP组低62%。鉴定出的主要艾美耳球虫种类（从59日龄到83日龄）是大型艾美耳球虫（占卵囊的53%）。不同日粮组的大型艾美耳球虫的AUC没有差异。总之，含红豆草的日粮使艾美耳球虫属的卵囊排泄量减少了60%，并提高了经济FCR。
