1Department of Animal Genetics and Biotechnology, Faculty of Agricultural and Environmental Sciences,Kaposvár University,Kaposvár,Guba S. u. 40,H-7400,Hungary.
2Olivia Ltd,Mizse 94,6050 Lajosmizse,Hungary.
Animal. 2018 Jan;12(1):28-33. doi: 10.1017/S1751731117001367. Epub 2017 Jun 21.
Studies have shown that nutrient requirement of suckling kits is not satisfied, but they can be fed a double quantity of milk (double nursing) resulting in improved BW and weight gain. The aim of our trials was to give additional solid feed during the early suckling period (3 to 15 days of age) when rabbit kits drink exclusively milk. Two experiments were conducted with animals from Pannon Rabbit Breeding Program. In experiment 1 (n=77 does, 734 kits) the does received commercial feed (C) or C pellet supplemented with 0.2 g powdered thyme/kg (CT). Within both dietary groups of the does three groups of litters were formed: no additional solid creep feeding (N); soya bean-based pellet (S); S pellet with 1% added powdered thyme (ST). In group S and ST, cylinder-shaped solid pellets were made. At the beginning (3 days of age) two pieces of pellets were placed daily into the nestbox after nursing. Later on it was increased to six pellets till 15 days of age. The kits consumed the additional solid feed (S and ST), however, it did not affect the BW, weight gain or survival. In experiment 2 (n=30 does, 240 kits) all does consumed commercial feed. The additional feed for kits was based on commercial piglet feed. Three groups were formed: the litters in control group were fed no additional solid feed (K), kits were fed additionally with pellets (8 mm of diameter) based on piglet feed powder, pellet adhesive and water (PI), and extra glycerin powder was added to the mixture of piglet feed powder and water (PG). The experiment lasted from the age of 3 days till 21 days. At the beginning six pellets were placed on the nest material. Later on the amount was gradually increased to 24 pellets till age of 15 days. The kits consumed the pellets. The BW of PI group differed from group PG at age of 5, 9, 12 and 21 days by +7.3%, +6.5%, +5.9%, +4.8%, respectively (P<0.05) and from group K at age of 12 days by +5.9% (P< 0.05). The differences were more expressed at age of 16 and 19 days in favour of group PI (from K by +7.1%, +6.9% and from PG by +5.9%, +5 8%, respectively, P<0.01) and at 21 days of age (from K by +6.2%, P<0.01). To find appropriate composition of creep feed for kits further studies are needed.
研究表明，哺乳期幼兔的营养需求得不到满足，但可以给它们喂食两倍的牛奶（双哺乳），从而提高体重和体重增加。我们的试验目的是在幼兔仅喝牛奶的早期哺乳期（3 至 15 天大）给予额外的固体饲料。我们用潘诺尼亚兔繁殖计划中的动物进行了两项实验。在实验 1 中（n=77 只母兔，734 只幼兔），母兔接受商业饲料（C）或 C 颗粒补充 0.2 克粉末百里香/公斤（CT）。在两个母兔饮食组中，形成了三组窝仔：不进行额外的固体补料（N）；大豆基颗粒（S）；S 颗粒添加 1%粉末百里香（ST）。在 S 组和 ST 组中，制作了圆柱形固体颗粒。开始时（3 天大），在哺乳后每天将两块颗粒状饲料放在窝箱中。之后，直到 15 天大，增加到每天 6 个颗粒。幼兔食用了额外的固体饲料（S 和 ST），但这并没有影响体重、体重增加或存活率。在实验 2 中（n=30 只母兔，240 只幼兔），所有母兔都食用商业饲料。幼兔的额外饲料基于商业仔猪饲料。形成了三组：对照组的窝仔不喂额外的固体饲料（K），窝仔额外喂食基于仔猪饲料粉、颗粒状饲料粘合剂和水的颗粒（PI），仔猪饲料粉和水的混合物中添加额外的甘油粉（PG）。试验从 3 天大持续到 21 天大。开始时，在窝料上放置六粒颗粒。之后，逐渐增加到每天 24 个颗粒，直到 15 天大。幼兔食用了颗粒。PI 组的体重与 PG 组在 5、9、12 和 21 天大时分别相差+7.3%、+6.5%、+5.9%、+4.8%（P<0.05），与 K 组在 12 天大时相差+5.9%（P<0.05）。PI 组在 16 天和 19 天大时的差异更为明显（与 K 组相比，分别为+7.1%、+6.9%，与 PG 组相比，+5.9%、+5.8%，均为 P<0.01），在 21 天大时（与 K 组相比，为+6.2%，P<0.01）。为了找到适合幼兔的补料组成，还需要进一步的研究。
