Ceï W, Archimède H, Arquet R, Félicité Y, Feuillet D, Nepos A, Mulciba P, Etienne T, Alexandre G, Bambou J C
URZ, Unité de Recherches Zootechniques, INRA, 97170, Petit-Bourg, Guadeloupe, France.
PTEA, Plateforme Tropicale d'Expérimentation sur l'Animal, UE1294, 97170, Petit-Bourg, Guadeloupe, France.
Trop Anim Health Prod. 2017 Apr;49(4):765-770. doi: 10.1007/s11250-017-1258-z. Epub 2017 Mar 3.
In this study, we evaluated the effect of changes in the nutritional status on the performances of growing Creole kids during an established experimental gastrointestinal nematode (GIN) infection. Eighteen 6-month-old Creole kids were distributed in two main groups infected (I) and non-infected (NI) and were placed for a period of 4 weeks on each of three diets differing in their nutritional values: (1) fresh grass (FG, 6.7 MJ/kg dry matter (DM) and 7.9% crude protein (CP)) non-supplemented, (2) FG supplemented with a commercial concentrate (CC, 12.2 MJ/kg DM and 20.6% of CP), and (3) FG supplemented with dried banana (Ban, 11.1 MJ/kg DM and 4.3% CP). The experiment was designed as a split-plot with experimental infection (I and NI) as the main plot and the diets (FG, CC, and Ban) as the subplots with three replicates. We showed a significant effect of the diet changes on the fecal egg counts. A higher dry matter intake, digestibility, and growth rate were observed with the CC diet but together with a slight but significant increase of the intensity of the GIN infection. These data suggest that the improvement of the protein nutritional status during an establish GIN infection would improve the animal performance at the expense of the mechanism involved in the control of the infection.
在本研究中，我们评估了营养状况变化对处于既定实验性胃肠道线虫（GIN）感染期间生长中的克里奥尔山羊幼崽性能的影响。18只6月龄的克里奥尔山羊幼崽被分为两个主要组，即感染组（I）和未感染组（NI），并分别在三种营养价值不同的日粮上饲养4周：（1）未补充的鲜草（FG，6.7兆焦/千克干物质（DM）和7.9%粗蛋白（CP）），（2）补充了商业浓缩料的FG（CC，12.2兆焦/千克DM和20.6%的CP），以及（3）补充了干香蕉的FG（Ban，11.1兆焦/千克DM和4.3%CP）。该实验设计为裂区设计，以实验性感染（I和NI）为主区，日粮（FG、CC和Ban）为副区，重复三次。我们发现日粮变化对粪便虫卵计数有显著影响。CC日粮的干物质摄入量、消化率和生长率更高，但同时GIN感染强度略有但显著增加。这些数据表明，在既定的GIN感染期间改善蛋白质营养状况会提高动物性能，但以感染控制机制为代价。
