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1.
试验旨在研究在妊娠后期母猪饲粮中添加牲血旺对母猪及新生仔猪生产性能的影响。选择大白母猪90头,其中试验组42头、对照组48头,对照组饲喂基础饲粮,试验组于母猪产前30天至分娩结束的基础饲粮中添加牲血旺1 500克/吨。试验结果表明:试验组母猪产活仔数比对照组增加0.06头,初生窝重增加0.09千克,仔猪平均初生重增加0.02千克;试验组初生仔猪血红蛋白指数并没有提高,但试验组母猪产程比对照组减少了0.39小时。结论,牲血旺能够改善母猪产活仔数、初生窝重和仔猪平均重,但仔猪生后仍需补铁。 相似文献
2.
《养殖与饲料．饲料世界》2017,(11)
选择胎次、生产性能相近的经产母猪60头,按每组30头,分为试验组和对照组。试验结果表明,试验组与对照组窝产活仔数、平均出生窝重、窝断奶数、平均断奶窝重差异极显著(P0.01)。仔猪在哺乳期治疗药费试验组比对照组少45.6元,母猪在哺乳期治疗药费试验组比对照组低64.8元。说明自配益母健仔宝能提高窝产活仔数、平均出生窝重、窝断奶数、平均断奶窝,降低哺乳期仔猪和母猪的治疗药费。 相似文献
3.
《中国兽医杂志》2018,(10)
为了研究中药饲料添加剂巴戟散对繁殖母猪生产性能的影响,选择胎次相同、体况无显著差异和配种日期相近的68头妊娠母猪,随机分成对照组和试验组两组,每组34头,自产前20 d开始,对照组母猪饲喂基础日粮(555妊娠料),试验组(555妊娠料+每吨饲料添加2 kg中药饲料添加剂巴戟散),产前7 d转入产房中,均喂567哺乳母猪料。试验组与对照组保持一致的常规饲养条件和方式。结果显示,在同样的温度、湿度、光照和饲喂条件下,与对照组相比,试验组母猪产程缩短了54. 27%,差异显著(P 0. 05);窝产死胎数降低了50%,差异显著(P 0. 05);仔猪出生重比对照组略高,但差异不显著(P 0. 05),总产仔数和健仔率也分别提高8. 71%、8. 73%。表明在母猪妊娠后期饲料中添加中药饲料添加剂巴戟散,可以缩短母猪的产仔时长,减少窝产仔死胎数,提高活仔率,从而提高繁殖母猪的生产性能。 相似文献
4.
《饲料工业》2015,(13)
试验旨在考察抗菌肽天蚕素对母猪繁殖性能及哺乳仔猪生长性能的影响。试验选用92头经产母猪,随机分为对照组和试验组,每组46头。对照组饲喂基础日粮,试验组在日粮中添加天蚕素500 mg/kg,其它按猪场正常药物保健程序进行。从产前30 d到产后31 d,总计饲喂61 d。结果显示,日粮中额外添加抗菌肽的试验组与对照组相比,母猪的产仔数、健仔率都显著提高,同时哺乳仔猪断奶成活率和体重增加有明显的提高趋势。与对照组相比,添加抗菌活性肽试验组总产仔数484头,平均窝产健仔数为9.27头;对照组总产仔数431头,平均窝产健仔数为8.41头。试验组哺乳仔猪断奶成活率达到100%,断奶体重可以多增加1.3%。结果提示母猪饲粮中额外添加500 mg/kg天蚕素能够增加母猪的繁殖性能和提升哺乳仔猪的生长性能。 相似文献
5.
“复方女贞子散”对繁殖母猪生产性能与哺乳仔猪生长性能的影响 总被引：5，自引：0，他引：5
为研究产前饲喂中药"复方女贞子散"对繁殖母猪和哺乳仔猪生产性能的影响,试验选择20头胎次相同、配种日期接近的妊娠长白母猪,随机分为2组,每组10头。在基础日粮与饲养环境相同的情况下,试验组母猪从预产期前30d开始每天每头添加30"g复方女贞子散",连喂30d,对照组母猪不添加任何药物,均按常规饲养,并连续观察至仔猪40日龄断奶时结束,试验结果表明:试验组母猪的产活仔数、成活率、初生重与断奶重均比对照组高,仔猪初生重较对照组提高24.04%,40日龄重较对照组提高18.07%,日增重较对照组提高17.32%,均达极显著水平(P<0.01)。仔猪腹泻的次数试验组比对照组显著降低。本试验结果表明,中药"复方女贞子散"可以增强母猪和新生仔猪的抗病能力,显著提高繁殖母猪与哺乳仔猪的生产性能。 相似文献
6.
为观察复方中草药制剂对母猪分娩和泌乳效果的影响,试验选择妊娠80-90 d的68头妊娠母猪,按配种日龄、胎次、体况、品种随机均分为中草药制剂组和对照组,每组34头,每头母猪为1个重复。两组基础饲粮相同,中草药制剂组在基础饲粮中按每吨300 g添加中草药制剂,试验期为妊娠80 d至断奶。结果表明,与对照组相比,中草药制剂组窝均产活仔数和断奶窝均仔猪数分别提高0.93头（P＜0.05）和1.09头（P＜0.01）;产活仔率和健仔率分别提高5.91和4.52个百分点;仔猪初生个体均重、断奶个体均重、仔猪平均日增重分别提高0.05 kg、0.5 kg、22.6 g,差异均显著（P＜0.05）。中草药制剂可有效提高母猪分娩质量和泌乳水平。 相似文献
7.
为探究饲料中添加乳酸菌素对母猪及哺乳仔猪的影响，试验选择健康状况良好、预产期相近、胎次相近（3～6胎）的20头母猪，按完全随机设计法分为对照组和试验组，每组10个重复，每个重复1头母猪，试验期54 d。对照组饲喂基础日粮，试验组饲喂基础日粮+0.25 g/kg的乳酸菌素。结果表明：与对照组相比，试验组母猪在重胎期及哺乳期的采食量均较高（P>0.05）；试验组母猪的窝产仔数、窝产活仔数、窝产健仔数、初生总窝重、健仔重及母乳中的免疫球蛋白含量有所增加（P>0.05）；母猪日粮中添加0.25 g/kg的乳酸菌素不影响母猪粪便中的微生物（乳酸菌、大肠杆菌及产气荚膜梭菌）、断奶后的发情情况及哺乳仔猪粪便中的免疫球蛋白含量。因此，哺乳母猪料中添加0.25 g/kg乳酸菌素可提高重胎期和哺乳期母猪的采食量，改善母猪的产仔情况，提高母猪乳汁中的免疫球蛋白A(IgA)与免疫球蛋白G(IgG)的含量，降低仔猪的死胎率、弱仔率及腹泻率。综上，哺乳母猪料中添加0.25 g/kg乳酸菌素可改善母猪的繁殖性能，提高哺乳仔猪的生长性能。 相似文献
8.
《甘肃畜牧兽医》2021,51(7)
试验旨在研究日粮中添加葡萄糖对母猪繁殖性能的影响。采用随机区组设计,将20头纯种大白母猪与20头纯种长白母猪按品种分为对照组和试验组,对照组在试验中仅饲喂基础日粮,试验组在妊娠85 d时开始添加葡萄糖,50 g/d,产前一周变量,以100 g/d的量饲喂至断奶结束,试验时间长达50 d,待母猪分娩产仔后,对猪只所产健仔数、弱仔数、仔猪初生重、木乃伊胎与21 d断奶重等数据进行综合评估。通过独立样本检验,得出试验组母猪所产健仔数、木乃伊胎、仔猪初生重及断奶重表现差异显著(P0.05)。结果显示:试验组母猪饲料中添加葡萄糖可显著提高母猪产健仔数,降低母猪产死胎数和木乃伊胎数,同时可显著提高仔猪初生重及断奶重,对母猪的繁殖性能具有一定的促进作用。 相似文献
9.
《养猪》2021,(2)
为研究复方中草药对母猪繁殖性能的影响,在北京市SPF猪育种管理中心的猪场随机选取40头大白母猪进行饲养试验。将40头母猪按随机区组法分成对照组和复方中草药组,每组20头。对照组饲喂基础饲粮,复方中草药组从母猪产前30d开始至仔猪28d断奶饲喂每天在基础饲粮中添加复方中草药粉剂30 g/头的饲粮。结果表明,与对照组相比,复方中草药组母猪窝产仔数、窝产活仔数以及仔猪初生窝重、21日龄窝重均显著提高(P0.05),断奶窝重和窝断奶仔猪数均极显著提高(P0.01),仔猪成活率提高,仔猪腹泻率和母猪断奶至发情的间隔天数降低,但差异不显著(P0.05)。由此可以看出,复方中草药在规模化养猪生产中具有很高的应用价值,值得推广。 相似文献
10.
《饲料工业》2017,(7):27-30
试验旨在研究母猪日粮中添加多肽菌素对妊娠母猪繁殖性能和新生仔猪生长性能的影响。试验选取胎次、体况相近,预产期前45 d的母猪23头,随机分为2组,试验组12头,对照组11头。每头母猪单栏饲喂,作为一个重复。对照组饲喂基础日粮,试验组在基础日粮中添加2 g/kg多肽菌素。试验期69 d(妊娠期45 d,哺乳期24 d)。结果表明:(1)试验组母猪窝产仔总数比对照组高2.98%,窝产活仔数比对照组高4.98%,窝产健仔数比对照组高6.95%,健仔率比对照组高3.90%,但差异均不显著(P0.05)。(2)试验组仔猪初生窝重、初生个体重、断奶窝重、断奶个体重、平均窝增重及平均个体增重均比对照组显著提高(P0.05);(3)试验组仔猪初生窝重均匀度及断奶窝重均匀度分别比对照组提高32.23%和38.78%,差异极显著(P0.01)。说明妊娠母猪日粮添加2 g/kg多肽菌素可提高妊娠母猪繁殖性能和初生仔猪生长性能,提高生猪养殖的实际效益。 相似文献
11.
S Urcelay D W Hird E M Huffman K Parker T B Farver 《Canadian journal of veterinary research》1984,48(4):394-401
To determine risk factors for development of diarrhea in litters of preweaned piglets, data were analyzed from records of 4,397 litters of swine farrowed on a central California ranch 1978-1982. Sixty-four percent of litters were treated for diarrhea. Statistical analysis by multiple logistic regression showed that litters born to young sows (parity less than or equal to 2) were 1.7 times more likely to develop diarrhea before weaning than were litters born to older sows (parity greater than or equal to 3) and that litters born on one end of farrowing barns were 1.3 times more likely to develop diarrhea than were litters born in the other end. The association of diarrhea with other variables--dam breed, sire, gestation group, gestation length, size of litter, number of mummies, runts or stillbirths per litter, farrowing barn of birth or day of the week farrowed--was weak or nonexistent (P greater than 0.01). 相似文献
12.
M. A. MacDonald D. E. Holness J. E. Moxley 《Canadian journal of veterinary research》1963,27(10):237-240
Analyses of the records of 244 litters of purebred Yorkshire, Landrace, the crosses, backcrosses and crisscrosses of these two breeds were carried out to evaluate some of the factors influencing the losses of piglets prior to weaning.
There were differences in percentage survival between mating systems, with crossbred Landrace x Yorkshire piglets showing the highest rate of survival.
A direct relationship existed between the duration of farrowing and the incidence of stillbirths. The incidence of stillbirths was higher for male piglets than for female piglets.
Litter size at birth and weight loss of sow from parturition to weaning were important factors in determining litter size at weaning. Litter size at birth however, exerted a more important influence on litter performance than weight loss.
Age of sow had no significant effect on the number of piglets alive at weaning and implied that gilts were apparently as good mothers as sows.
From computed least squares estimates, it was implied that in general, piglets of low birthweights had much less chance of survival than those born with heavier weights.
相似文献13.
本文系对103头360窝太湖猪的繁殖性能进行系统研究。结果是60头母猪在6个繁殖周期中共繁殖360窝,平均繁殖周期158.33天,年产仔2.31胎。窝产仔16.35头,活仔15.10头,35日龄断奶育成14.44头,窝重83.48公斤。每头母猪年产仔37.69头,年产活仔34.81头,年提供断奶仔猪33.29头。其中窝产仔达到18头以上,出现1胎或连续4胎高产的母猪69头,占试验母猪群66.99％。 相似文献
14.
This study evaluated how socializing piglets before weaning affects behavior of lactating sows and the pre- and postweaning behavior and performance of piglets. Two farrowing rooms, each with 6 pens, and 1 nursery with 4 pens were used. In total, data were obtained from 24 sows and their litters. In each farrowing room, the solid barriers between 3 farrowing pens were removed on d 12 after farrowing, and the sows remained confined in their crates (experimental group). In the other 3 farrowing pens of each farrowing room, sows and their litters were kept under conventional conditions until weaning (control group). All piglets were weaned 28 d after birth. After weaning, piglets from each group remained together in 1 pen of the nursery. The behavior of sows (lying, standing, sitting, nursing) and piglets (lying, active, suckling) in the farrowing rooms was observed for 24 h before and for 48 h after removal of the barriers between the pens. In addition, behavior (active, lying, feeding, agonistic behavior) of piglets was observed in the nursery during the initial 48-h period after weaning. Each piglet was weighed on d 5, 12, and 28 after birth and thereafter weekly until the fifth week of rearing. In the farrowing room, mixing of litters did not influence behavior of piglets and sows. Preweaning weight gain of the piglets did not differ (P = 0.60) between the treatments. In the initial 48 h after weaning, less agonistic behavior (P < 0.001) was observed in piglets belonging to the experimental group. During 5 wk of rearing, piglets in the experimental group gained more weight compared with the control group (P = 0.05). The advantage shown by the experimental group became especially conspicuous in the first week after weaning (P = 0.05). By socializing unfamiliar piglets before weaning, stress due to mixing could at least be distanced in time from the other burdens of weaning, thereby improving performance. 相似文献
15.
本试验旨在研究给妊娠后期和哺乳期母猪补饲发酵芦笋下脚料对母猪和哺乳仔猪血清抗氧化能力、免疫功能和炎性因子含量的影响。选择15头膘情、胎次和预产期相近的妊娠母猪,随机分成3组,每组5个重复,每个重复1头猪。A(对照)、B和C组母猪每头每天分别补饲0、0.25和0.50 kg发酵芦笋下脚料。试验从母猪妊娠期的第85天开始至产后第21天结束。在母猪分娩和仔猪断奶时采集母猪耳静脉血液,在仔猪10和21日龄时采集仔猪前腔静脉血液,分别测定血清指标。结果表明:1)C组母猪在仔猪断奶时血清超氧化物歧化酶(T-SOD)活性极显著高于对照组(P0.01),在母猪分娩和仔猪断奶时血清丙二醛(MDA)含量均极显著低于对照组(P0.01)。B组哺乳仔猪10日龄时血清T-SOD活性显著高于对照组(P0.05),血清MDA含量显著低于对照组(P0.05)。2)C组母猪在母猪分娩时血清生长激素(GH)含量显著高于对照组(P0.05)。3)C组母猪在母猪分娩时血清免疫球蛋白A(IgA)和免疫球蛋白G(IgG)含量显著高于对照组(P0.05)。4)B和C组母猪血清白细胞介素-6(IL-6)含量在母猪分娩和仔猪断奶时均极显著低于对照组(P0.01)。C组母猪在仔猪断奶时血清肿瘤坏死因子-α(TNF-α)含量显著低于对照组(P0.05)。C组哺乳仔猪10日龄时血清TNF-α含量显著低于对照组(P0.05)。综上,每头母猪每天补饲0.50 kg发酵芦笋下脚料可增强其抗氧化能力和免疫功能,提高GH含量,减少炎性反应,同时可提高仔猪的抗氧化能力,减少炎性反应的发生。 相似文献
16.
17.
E M SPICER S J DRIESEN V A FAHY B J HORTON L D SIMS R T JONES R S CUTLER R W PRIME 《Australian veterinary journal》1986,63(3):71-75
Causes of preweaning mortality were examined on a large intensive piggery. Diagnosis was made using comprehensive clinical histories combined with post-mortem data. Two thousand four hundred and twenty-six piglets were born in 238 litters. Pre-parturient and parturient losses were 2.9% and 5.4% of the total numbers of piglets born. Birth to weaning mortality was 11.3%. Among piglets born alive, overlaying was the most frequent cause of death (2.1%), followed by deaths due to diarrhoea (1.7%), anaemia (1.2%), savaging (1.1%) and losses of small weak piglets (0.9%). Most deaths, including stillbirths, were associated with below average birth weight, and two-thirds of all deaths of liveborn pigs occurred within 4 days of birth. Increased litter size resulted in decreased birth weights, an increased percentage of stillborn piglets and mummified foetuses, but duration of parturition was not affected. Stillborn piglets were born late in the litter and after a longer interval between pigs born (interpig interval). Over 70% of deaths due to overlay were in previously healthy piglets, but some were associated with illness of the sow (18%) or both sow and piglet (3%). Savaging was confined mainly to first parity sows and was responsible for 20% of all deaths in these litters. Sixty-two per cent of all piglets with a birth weight of less than 800g were stillborn or died before weaning compared with 18.7% mortality for all piglets. Anaemia in piglets was considered to be due to umbilical haemorrhage. Anaemic piglets had a 36% mortality to weaning compared with 10% for non-anaemic piglets.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
18.
Analysis of Possible Influence of Conjugated Linoleic Acid on Growth Performance and Losses of Piglets 
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下载免费PDF全文 The aim of this work was to evaluate the effect of supplementing the feed ration for lactating sows with the conjugated linoleic acid (CLA) on the growth performance and losses of piglets from birth to weaning. The monitoring comprised 20 litters in control and 20 litters in experimental group of Czech Large White × Czech Landrace hybrid combination sows. The control group was given a standard feed mixture for lactating sows, and experimental group was fed with the feed mixture supplemented with 2% of CLA, from the day of farrowing to the weaning of piglets, that is for the time of 28 days. The results of the experiment indicate the significantly better parameters of the numbers of reared piglets in the experimental group and the related lower level of losses of piglets from birth to weaning (p < 0.01). However, the feed mixture for lactating sows enriched in conjugated linoleic acid had no significant effect on the growth performance of piglets from birth to weaning (p > 0.05). Sows in the experimental group showed earlier onset of post‐partal oestrus after weaning of piglets (p < 0.05). These findings demonstrate that the supplementation of diet for lactating sows with CLA can improve survival of piglets from birth to weaning and shortening of weaning‐to‐oestrous interval in sows. 相似文献
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本试验旨在研究仔猪出生后10~20 d,早期断奶仔猪小肠谷氨酸转运载体基因表达情况与哺乳仔猪的差异。试验分别从40头不同母猪的仔猪中各选出体重相近,10日龄的"杜×长×大"三元杂交仔猪1头,共40头仔猪,随机不配对分为2组,每组20头仔猪,对照组(哺乳组)为哺乳仔猪,随母猪喂养;试验组(断奶组)为断奶仔猪,隔离断奶饲养;试验期10 d。饲养结束,每组随机取12只仔猪,宰杀取空肠和回肠,测定谷氨酸转运载体兴奋性氨基酸转运载体1(EAAC1)蛋白质表达情况和游离氨基酸含量。结果显示,断奶显著降低了仔猪空肠和回肠EAAC1(57和73 ku)及其相关蛋白谷氨酸转运联合蛋白(GTRAP3-18)(50 ku)的蛋白质和mRNA表达量(P0.05)。断奶提高了仔猪空肠游离谷氨酸和总氨基酸含量,却降低了仔猪回肠游离谷氨酸和总氨基酸含量,差异显著(P0.05)。结果提示,早期断奶降低EAAC1和GTRAP3-18的蛋白质含量,这可能与早期断奶仔猪遭受营养谷氨酸缺乏导致的肠道氨基酸吸收转运障碍有关。 相似文献
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母猪产死胎、弱胎和断奶仔猪腹泻是兽医临床养猪业亟待解决的问题。为了响应国家在养殖业中执行的“减抗替抗”政策,本文基于中医辩证论治,探讨中草药复方芪英汤、子甘汤分别对母猪繁殖性能和断奶仔猪生长性能的影响。对同期发情的母猪(35头)和同期断奶仔猪(140头)进行中药方剂预混饲料的饲养方式,分别持续饲养至分娩结束、30 d,同时记录母猪分娩数据包括窝均出生仔猪数、窝均重、窝均死胎数、死胎率等,仔猪生长数据包括初重、末重、料肉比和腹泻率,通过酶联免疫吸附方法(ELISA)、荧光定量PCR(RT-PCR)检测母猪血清中IL-6、IL-1β、TNF-α、IgG、IgA、IgM和断奶仔猪血清中IgA的分泌情况以及母猪圆环病毒2型、伪狂犬病病毒、猪繁殖与呼吸综合征病毒及抗体来确定母猪免疫力情况。结果表明,芪英汤可以显著降低妊娠母猪炎性因子IL-6、TNF-α分泌水平,降低低胎次母猪生产新生仔猪死胎率、弱胎率、死亡率,分别下降1.96%、5.83%、8.25%,提高母猪的繁殖性能。子甘汤和芪英汤联用能够显著提高仔猪断奶后期IgA水平,降低腹泻率和料肉比, 提高生长性能,降低断奶仔猪血液中白细胞水平,红细胞恢复到正常水平。综上,中药复方芪英汤和子甘汤有助于提高母猪繁殖性能和恢复断奶仔猪生长性能。 相似文献