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怎么给猪配种,配种管理指南(连载八)

 东秋元图书馆 2020-03-29

16.2补充说明: 体况

Additional Comments: Body Condition

如果经产母猪和后备母猪在配种后立即转入妊娠舍,在开始的4周里这些栏位要锁起来(除了英国)。这样可以单独饲喂母猪,保证母猪在配种4周后的群养前,能达到一致的体况。实验表明,配种后开始的4周里每天饲喂3.8个饲料单位的饲料对较瘦母猪的窝产仔数有正面的影响,但对后备母猪会产生负面的影响。母猪由于哺乳失重而出现的能量不平衡会造成流产。母猪在生完第4胎后才结束生长,所以年轻的母猪需要给予额外的饲料。

If the sows and gilts are placed in the gestation unit just after mating, the boxes are locked in the first 4 weeks (except UK). This makes it possible to feed the animals individually, thus ensuring a uniform body condition when the animals are loosened 4 weeks after mating. Experiments have shown a positive effect on the litter size with skinny sows at a high feed strength 3,8 FU per day in the first 4 weeks after mating. In gilts, there is a negative impact of high feed strength in these 4 weeks. A possible weight loss from the farrowing unit should urgently be obtained since sows in negative energy balance may abort. The sows are only fully grown after 4th litter, so therefore young sows should receive extra feed.

并非所有的母猪都有相同的饲料转化率。特别是产房中非常瘦弱的母猪,即使给它们额外的饲料,它们也很难恢复到相同的体况。因此,要对母猪的体况进行检查,调整瘦的和肥的母猪的饲料量。饲喂曲线A适用于略高于适中体况的母猪。饲喂曲线B适用于年轻且瘦的母猪。良好的体况管理是饲料采食的关键,因为母猪的体重每增加1公斤,就需要采食更多的饲料。

Not all sows have the same feed conversion. Especially sows that are very emaciated from the farrowing unit, can be difficult to obtain in the same body condition again, even if they are given extra feed. Therefore should the sows’ body condition be checked and skinny and fat sows feed quantity should be regulated. Feed curve A meets sows, which is slightly above average. Feed curve B meets young and skinny sows. Good body condition management is critical for the feed consumption, since sows have a high feed consumption per kg weight gain.

过肥或过瘦的母猪应根据曲线1或3进行单独饲喂。

Different sows should be fed individually according to curve 1 or 3.

胎儿大部分的重量是在妊娠的最后几周增长的。因此,饲喂量在该期间要增加到3.5-4.0个饲料单位/天,但这不适用于肥的母猪。

Fetus have by far the largest growth in the last weeks of gestation. Therefore, the feed strength should be increased in this period from 3,5 to 4,0 FU per day, however not for fat sows.

给猪群饲喂液体饲料时,最好每天饲喂两次,因为饲料中的干湿料之比至少为1:4,而母猪无法适应如此大的饲喂量。最重要的是所有的饲料阀门最好可以依次立即打开落料。如果做不到这一点,母猪会争着去先放料的栏里吃,这会引起猪舍内不必要的躁动。给猪群饲喂干饲料时,建议一天一次,并且每天投喂一些秸秆。

In herds with liquid feeding, it is advantageous to feed the sows twice a day as sows physically can not accommodate the large feed quantities when the ratio between dry:wet is 1:4 or more. It is important for the pens function that all valves in the pen feed immediately after each other. Failing this, the sows will compete to get into the boxes that are fed first, which creates unnecessary anxiety in the pen. In herds with dry feed one daily feed is recommended, when there is assigned straw daily.

温度对母猪的采食量有很大的影响。而瘦的母猪比肥的母猪的脂肪层薄,因此需要更多的饲料来产热。

Temperature has great influence on the sows feeding needs. Furthermore, skinny sows have a thinner layer of fat than fat sows and therefore has a bigger need for feed to produce heat.

温度下降需要额外的饲料补充猪饲料单位:

Extra feed by decreasing temperature Fuso 

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