母猪催情促妊娠中草药的预处理及其应用效果的研究

Study on the Application and Effect of Chinese Herbs for SowEstrogenesis and Pregnancy Promotion

为提高母猪发情率和妊娠率,缩短发情间隔,提高繁殖性能。本试验:1.选取日龄(150±5)和体重(120±10 kg)相近、健康无病、生长和体况良好的长大二元杂交后备母猪180头,随机分为3个处理组,每个处理6个重复,每个重复10头猪。过渡期为3天,正式试验为44天。对照组不添加中草药,未处理组每头猪每日添加50 g未处理中药复方添加剂,处理组每头猪每日添加50g处理中药复方添加剂,母猪发情后停止饲喂中草药。试验第七天于母猪发生静立反射后前腔静脉采血,收集血清。2.选取胎次(2~3胎)相同、配种日期相近,繁殖性能和体况无明显差异且健康无病的经产母猪90头,随机分为3个处理组,每个处理6个重复,每个重复5头猪。母猪断奶后第二天正式开始,试验周期为37 d。试验饲粮及分组与上述后备母猪分组完全一致。结果表明:(1)后备母猪饲粮中添加处理后的复方中草药,发情率和妊娠率显著高于对照组(P<0.01)。(2)后备母猪日粮中添加处理后的中草药,能够极显著提高雌激素、促卵泡素和促黄体素的含量(P<0.01),显著提高孕激素的含量(P<0.05)。(3)经产母猪饲粮中添加处理后的复方中草药,发情率和妊娠率与对照组相比,差异不显著(P>0.05),但显著缩短经产母猪的发情间隔(P<0.05)。(4)经产母猪饲粮中添加处理后的复方中草药,极显著提高经产母猪的雌激素、孕激素、促卵泡素和促黄体素的含量(P<0.01)。综上所述,中草药能够提高母猪体内孕激素、雌激素、促黄体素和促卵泡素的含量,促进母猪排卵,提高母猪的发情率和妊娠率,缩短母猪发情间隔,提高母猪繁殖性能。

In order to improve the estrus and pregnancy rates of sows,shorten the estrus interval,and improve reproductive performanceThis experiment selected 180 adult binary hybrid reserve sows with similar age(150±5)and body weight(120±10 kg),healthy and disease-free,good growth and physical condition,and randomly divided into 3 treatment groups,each with 6 replicates and 10 pigs per replicate.The transition period is 3 days,and the official trial is 44 daysThe control group did not add Chinese herbal medicine,the untreated group added 50g of untreated Chinese herbal compound additives per pig per day,the treatment group added 50g of treated Chinese herbal compound additives per pig per day,and the sows stopped feeding Chinese herbal medicine after estrus.On the seventh day of the experiment,blood was collected from the anterior vena cava of sows after static reflex and serum was collected.2.Select 90 multiparous sows with the same parity(2-3 fetuses),similar breeding dates,no significant differences in reproductive performance and physical condition,and healthy and disease-free conditions,and randomly divide them into 3 treatment groups,with 6 replicates for each treatment and 5 pigs for each replicate.The sow officially starts on the second day after weaning,and the experimental period is 37 days.The experimental feed and grouping are completely consistent with the aforementioned reserve sow grouping.The results showed that(1)the estrus rate and pregnancy rate of the treated compound Chinese herbal medicine in the reserve sow feed were significantly higher than those of the control group(P<0.01);(2)Adding processed Chinese herbal medicine to the diet of reserve sows can significantly increase the levels of estrogen,follicle stimulating hormone,and luteinizing hormone(P<0.01),and significantly increase the levels of progesterone(P<0.05).(3)Compared with the control group,the estrus rate and pregnancy rate of the treated compound Chinese herbal medicine added to the diet of postpartum sows were not significantly different(P>0.05);But significantly shortened the estrus interval of multiparous sows(P<0.05);(4)The addition of processed compound Chinese herbal medicine to the diet of multiparous sows significantly increased the levels of estrogen,progesterone,follicle stimulating hormone,and luteinizing hormone(P<0.01).In summary,it can increase the levels of progesterone,estrogen,luteinizing hormone,and follicle stimulating hormone in the body of sows,promote ovulation,increase estrus and pregnancy rates,shorten estrus intervals,and improve reproductive performance of sows.