断奶后仔猪顺利进食的秘诀(一)

发布时间:2017-11-30 16:20:30   来源:猪OK   阅读:1861次

Feeding piglets after weaning remains a challenge for most producers, and the reasons for post-weaning anorexia are many and complex. The general consensus is that weaned pigs do not eat because of radical changes in their feeding behavior, and feed form and composition after weaning. Before weaning, the sow was responsible for feeding piglets at frequent intervals, and communal liquid feeding was, thus, the norm for piglets. After weaning, the piglets are faced not only with a stressful physical and social environment, but also with the decision of when and how much to feed themselves. To make things worse, where water was provided before in conjunction with solid matter in sows milk, now the weaned pig needs to distinguish between thirst and hunger and also to realize that these needs must be satisfied via separate media dry feed and water. A low-quality environment and poor health status certainly do not help an already affected appetite.

断奶仔猪

断奶仔猪的饲养对大多数养殖者来说仍是一个挑战,断奶后厌食原因也是错综复杂的。普遍的共识是,断奶后仔猪不进食是因为其摄食行为及饲料形态和组成发生了根本性的变化。在断奶前,母猪定期哺乳,仔猪认定食物的标准是液体形态。断奶后,仔猪不仅要面对自身和周围环境的压力,还要面临着决定何时并将如何喂饱自己的问题。更糟的是,断奶前,供水源是混合着营养物质的奶水,而现在,断奶仔猪需要区分口渴和饥饿,并意识到这些是必须要通过单独的媒介——干饲料和水来得到满足的。环境卫生不合格和健康状况不佳当然不利于断奶后已受影响的仔猪食欲。

But why is ensuring a high feed intake during the early post-weaning period so important? Research has repeatedly demonstrated that low feed intakes during the early post-weaning period severely limit future growth potential, increase temperature and management requirements, intensify morbidity and mortality, and reduce turn over of facilities. The following generic rule may be applied to understand this issue:

但是,为什么断奶早期保证高采食量是非常重要的呢?研究一再表明,断奶早期采食量低会严重限制猪的生长性能,使猪对温度和管理更为敏感,猪的发病率和死亡率也增加了,并减少了设施的周转率。我们可以通过下面的数据来理解这个问题:

For every 100 grams of extra feed intake per day during the first week post-weaning, body weight increases by at least 2 kilograms at the end of the fourth week post-weaning.This has a dramatic effect on overall performance during the growing-finishing period as pigs that barely maintain their weaning weight during the first week may take an extra 10 days to reach market weight compared to pigs that grow at their pre-weaning gain rates (about 200 grams per day) during the same period.

在仔猪断奶后的第一周内,每天摄入量每增加100克饲料,断奶后第四周体重增加至少2公斤。这对整个肥育期的生产性能有很大的影响,相较于断奶前生长速度(每天增长200克),仔猪断奶后第一周内体重几乎不增长,甚至会下降。这导致其生长期需要延长10天才能达到出栏重量。

Early-weaned pigs require about 250 grams of dry feed per day during the critical first week post-weaning, to maintain their pre-weaning growth rate. Actual feed intakes, however, rarely exceed 100 grams per day during this period, and this is barely enough to maintain body weight at thermoneutral conditions. Fortunately, progress in nutrition and feeding management has equipped producers with an array of measures to prevent starvation and enhance post-weaning feed intake. All or some of the following are used successfully in profitable operations:

早期断奶仔猪,断奶后第一周至关重要,仔猪每天需要大约250克干饲料,才能使其生长速度与断奶前持平。然而,在此期间,实际的饲料摄入量很少超过100/,在适温条件下,这仅能勉强够维持体重。幸好,在营养和饲料管理方面的取得的进展,能够为生产者提供一系列预防仔猪饥饿和增强断奶后采食量的措施。以下所列内容已经成功用于生产实践:(未完待续)


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