Early Growth and Development of Boer Goats from Embryo Transplant

[ Objective] To study the growth-development of Boer goats from embryo transplant. [ Method] With Boer goats from embryo transplant as the tested animals and natural breeding Boer goats born in the same period as CK, the weight of Boer goats at birth and at the age of 1,3 and 6 months as well as the body size at the age of 3 and 6 months were investigated in this study, while their health conditions were also observed and recorded. [ Result] Under the normal feeding conditions, Boer goats from embryo transplant developed well at early stage, and their meat-using body type were also obvious. The average birth weight of bucks was （4.25±0.95） kg, and that of does was （3.74±0.10） kg. The average weight of bucks at the age of 6 months was （31.90 ±0.74） kg and that of was （25.90 ±0.67） kg. The daily gains of bucks and ewes from birth to 6 months of age were 153.64 and 123.11 g respectively, while their body length, body height and chest circumference increased obviously, and there was no significant difference in body weight or body size between them and natural breeding goats. [ Condusioa] The study lays a foundation for further studies on the breedinq and utilization of Boer noats from embryo transplant at early staae.

STUDY ON EMBRYONIC DEVELOPMENT AND EARLY GROWTH OF TRIPLOID AND GYNOGENETIC DIPLOID LEFT-EYED FLOUNDER, PARALICHTHYS OLIVACEUS (T. et S.)

The early effects of chromosomal manipulation of eggs and sperm on the yields of triploid and gynogenetic diploid larvae of Paralichthys olivaceus were investigated. Triploidy was achieved by cold shocking fertilized eggs at 0-2℃ for 45 minutes duration 5 minutes after fertilization, and the induced triploidy rates were 31.2%-50% and the relative hatching rates were 53.3%-99%. Gynogenetic diploids were obtained when eggs were inseminated with irradiated sperm and cold shocked at 0-2℃ for 45 minutes duration 5 minutes after fertilization. The induced gynogenetic diploid rates and the relative hatching rates were 94%-96% and 48.5%-68.5% respectively. The embryonic development of the triploid experimental group and of the gynogenetic diploid experimental group was delayed at first compared with the control group. But from the gastrula stage, it was not delayed anymore. There were no significant differences in the growth of the triploid experimental group larvae and the control group larvae, and in the growth of the gynogenetic diploid experimental group larvae and the control group larvae according to Student’s t test (α=0.05). The relationship between the early growth of the triploid experimental group larvae and that of gynogenetic diploid experimental group larvae was also studied.

Modified halloysite nanotubes reduce the toxic effects of zearalenone in gestating sows on growth and muscle development of their offsprings

Background： Zearalenone （ZEN） is an estrogenic mycotoxin that is primarily produced by Fusarium fungi and has been proven to affect the reproductive capacity of many species to varying degrees. The present experiment was designed to study the maternal persistent effects of zearalenone toxicity in gestating sows on growth and muscle development of their offsprings, and the alleviation of zearalenone toxicity by modified halloysite nanotubes （MHNTs）. Methods： Eighteen sows were fed with one of three dietary treatments that included the following： （1） a control diet, （2） a contaminated grain diet （with 50 % moldy corn, 2.77 mg/kg ZEN）, and （3） a contaminated grain diet （with 50 % moldy corn, 2.76 mg/kg ZEN） ＋ 1% MHNTs. Each sow was exclusively fed its experimental diets from 35 to 70 d of gestation at a total of 2 kg daily. Muscle samples were collected from six piglets per treatment at birth, weaning and finishing. Results： The results showed that feeding the sows with the ZEN-contaminated diets from 35 to 70 d of gestation decreased the ADG, ADFI and G：F of their offsprings （P 〈 0.05）. The muscle fiber numbers in the newborn, weaning and growing-finishing pigs and the muscle fiber diameters at birth and weaning were also decreased by maternal ZEN exposure （P 〈 0.05）. The expressions of IGF-I, IGF-II, Myf-5 and Mstn at birth and IGF-II, Pax7, Myf-5 and MyoD1 at weaning were altered by feeding gestating sows with ZEN-contaminated diets （P 〈 0.05）. The MHNTs reduced most of the ZEN-induced toxic effects： the ADG and ADFI on growth performance, the muscle fiber numbers at weaning and finishing and the muscle fiber diameters at weaning （P 〈 0.05）. The expression levels of IGF-II and Mstn in newborn piglets and IGF-II and Myf-5 in weaning piglets were also prevented by adding 1% MHNTs （P 〈 0.05）. Conclusions： The present study demonstrated that the offsprings of sows fed with ZEN-contaminated diets from 35 to 70 day of gestation exhibited weakening on growth performance, physiological changes in their muscle fibers and alterations of mRNA expression in their muscle tissues, and also indicated that MHNTs prevented most of the ZEN- induced weakening in the muscle tissues.

Assessment of growth monitoring among children younger than 5 years at early childhood development centres in Nelson Mandela Bay,South Africa

Introduction:Early childhood development(ECD)centres are important community hubs in South Africa and act as sites for community detection of childhood nutrition problems.This study aimed to assess the ability of trained ECD practitioners with optimal support to correctly classify the nutritional status of infants and young children at ECD centres in the Nelson Mandela Bay.Methods:A descriptive,cross-sectional study was used to collect data from 1645 infants and children at 88 ECD centres.Anthropometric measurements were taken by trained fieldworkers and growth monitoring and promotion infrastructure was audited at ECD centres.Results:Of the sample,4.4%(n=72)were underweight by weight for age Z-score(WAZ<-2)and 0.8%(n=13)were severely underweight(WAZ<-3).Results showed that 13.1%(n=214)were stunted by height for age Z-score(HAZ<-2)and 4.5%(n=74)were severely stunted(HAZ<-3).The prevalence of moderate acute malnutrition was 1.2%and severe acute malnutrition was 0.5%,while the prevalence of overweight was 9.2%and the prevalence of obesity was 4%.A significant level of agreement between the correct interpretation and the ECD practitioners'interpretation was observed across all the anthropometric indicators investigated.The true positive wasting cases had a mean mid-upper arm circumference(MUAC)of 14.6 cm,which may explain the high false negative rate found in terms of children identified with wasting,where ECD practitioners fail to use the weight for height Z-score(WHZ)interpretation for screening.Conclusion:By using ECD centres as hub to screen for malnutrition,it may contribute to the early identification of failure to thrive among young children.Although it was concerning that trained ECD practitioners are missing some children with an unacceptably high false negative rate,it may have been due to the fact that wasting in older children cannot be identified with MUAC alone and that accurate WFH plotting is needed.Onsite mentorship by governmental health workers may provide ECD practitioners with more confidence to screen children for growth failure based on regular WFH measurements.Moreover,ECD practitioners will be more confident to monitor the Road to Health booklets for missed vaccinations,vitamin A and deworming opportunities.

Effects of galacto-oligosaccharides on growth and gut function of newborn suckling piglets

Background: Most research on galacto-oligosaccharides(GOS) has mainly focused on their prebiotic effects on the hindgut,but their beneficial effects on the small intestine(SI) have received little attention.Since jejunum is the important place to digest and absorb nutrients efficiently,optimal maturation of the jejunum is necessary for maintaining the high growth rate in the neonate.Therefore,this study investigates the effect of the early intervention with GOS on the intestinal development of the jejunum.Methods: A total of 6 litters of neonatal piglets(10 piglets per litter; Duroc × Landrace × Large White) with an average birth weight of 1.55 ± 0.05 kg received 1 of 2 treatments based on their assignment to either the control(CON) group or the GOS(GOS) group in each litter.Piglets in the GOS group were orally administrated 10 mL of a GOS solution(reaching 1 g GOS/kg body weight) per day from the age of 1 to 7 d; the piglets in the CON group were treated with the same dose of physiological saline.All piglets were weaned on d 21.On d 8 and 21 of the experimental trial,1 pig per group from each of the 6 litters was euthanized.Results: The early intervention with GOS increased the average daily gains in the third week(P < 0.05).Decreased crypt depth was also observed in the jejunum of the piglets on d 21(P < 0.05).The early intervention with GOS increased the jejunal lactase activity on d 8,maltase activity and sucrase activity on d 21(P < 0.05).In addition,the early intervention with GOS also facilitated the mRNA expression of Sodium glucose co-transporter 1(SGLT1) on d 8 and the m RNA expression of Glucose transporter type 2(GLUT2) on d 21(P < 0.05).It was further determined that GOS up-regulated the m RNA expression of preproglucagon(GCG),insulin-like growth factor 1(IGF-1),insulin-like growth factor 1 receptor(IGF-1 R) and epidermal growth factor(EGF).GOS also up-regulated the protein expression of glucagon-like peptide-2(GLP-2) and EGF in the jejunum of the piglets.Furthermore,it was also found that GOS enhanced the protein expression of ZO-1 and occludin on d 8(P < 0.05),as well as increased the mRNA expression of TGF-β and decrease the mRNA expression of IL-12(P < 0.05).Conclusions: These results indicate that GOS have a positive effect on piglet growth performance in addition to decreasing the crypt depth and enhancing functional development in jejunum of suckling piglets.

Impact of dietary L-arginine supply during early gestation on myofiber development in newborn pigs exposed to intra-uterine crowding

Background: Intra-uterine crowding(IUC) observed in hyperprolific sows impairs myofiber hyperplasia and overall fetal growth. Arginine supplementation(ARG) in gestation diets has been shown to positively affect litter and muscle development. The study objective was to assess whether the effect of ARG on offspring characteristics, with special emphasis on myofiber hyperplasia, differs under IUC conditions from these responses,because in that situation growth retardation is particularly prevalent due to reduced fetal nutrient supply.Unilateral oviduct ligation(OL) was used as a model for an uncrowded and hyperprolificacy(IN) as a model for a crowded intra-uterine environment.Methods: Five OL and five IN sows were fed a diet supplemented daily with either 43 g L-alanine(Ctrl) or 25 g L-arginine from d 14 to 28 of gestation in a cross-over design(two periods: 5^( th) and 6^( th) parity). At farrowing, two male and two female offspring, respectively, with a low and intermediate birth weight(BtW) were selected. After euthanization, the Semitendinosus muscle(STM) was removed and weighed, and the light and dark portions(STM_d and STM_l) were prepared for myofiber histochemistry using ATPase staining and the entire STM for gene expression analysis of myogenesis-related genes using RT-qPCR. In addition, various organs were removed and weighed. Data were analyzed using the MIXED model in SYSTAT.Results: No effect of either IUC or dietary treatment was found in litter characteristics. Offspring of ARG sows displayed a greater muscle area in STM(P < 0.01) as a result of the greater myofiber hyperplasia(P < 0.01). The increase was more distinct in the STM_l(P < 0.05) than in the STM_d(P = 0.131). Offspring of OL sows were heavier at birth(P < 0.01), had a heavier STM(P < 0.05), liver(P < 0.01) and kidney(P < 0.05), but when expressed relative to birth weight, these differences were absent. In addition, IUC had an effect(P < 0.05) on the expression of one of the myogenesis-related genes investigated.Conclusions: Independent from the extent of IUC, ARG improved Bt W, muscle and organ weights and myofiber hyperplasia in offspring.

生命早期1000天的养育对全程生长发育的影响

生命早期的1000天对组织和器官的发育有着重要而持久的影响,对个体成长和健康发展至关重要,良好的营养支持可以降低慢性疾病的风险。文章概述生命早期1000天的营养状况对个体生长发育的重要意义,指出孕前、产前、哺乳期、辅食和早期普食期4个阶段需均衡营养,提出通过生命早期的健康饮食和生活方式,特别是母乳喂养,为个体健康打下坚实基础。

甜菜碱对猪的“母子一体化”营养调控研究进展

甜菜碱是甘氨酸的三甲基衍生物,主要来源于甜菜及其副产物,作为甲基供体,能将同型半胱氨酸转化为蛋氨酸,并提供S-腺苷甲硫氨酸。甜菜碱具有促进生长发育、提高繁殖性能、增强机体免疫和抗氧化水平、调节机体代谢和改善产品品质等功能,其作为一种重要的营养添加剂已被广泛应用于畜禽生产中。母体的营养和健康状况对子代的生长发育和物质代谢至关重要。在养猪生产中,常利用“母子一体化”营养调控策略来提高母猪的繁殖性能,改善其子代的生长性能、肠道健康、免疫功能和营养代谢等。基于此,本文综述了甜菜碱在猪“母子一体化”营养调控中的作用及其潜在价值,旨在为甜菜碱在养猪生产中的应用提供依据。

早教新型护理模式在新生儿护理中的应用价值分析

目的:分析早教新型护理模式在新生儿护理中的应用价值。方法:选取2022年1月—2023年3月泰安市妇幼保健院接收的106例新生儿作为研究对象,随机分为对照组(n=53,实施常规护理)和观察组(n=53,实施早教新型护理)。比较两组新生儿家长护理知识掌握度,两组新生儿体格发育、神经发育、运动功能和智力发育情况。结果:观察组新生儿家长护理知识掌握度评分高于对照组(P<0.05);两组新生儿出生时的体格发育、神经发育、运动功能和智力发育情况无明显差异(P>0.05);出生3个月后,观察组新生儿的体格发育、神经发育、运动功能和智力发育情况均优于对照组(P<0.05)。结论:早教新型护理模式能够显著提升新生儿家长的护理知识掌握程度,促进新生儿体格生长、神经、运动及智力发育水平。

围产期母体营养调控对犊牦牛生长发育、血清生化及免疫功能的影响

本研究基于高寒牧区牦牛产业母犊培育现状,旨在探究围产期母体营养均衡供给与早期断奶的营养调控方式对犊牛生长发育、血清生化及免疫功能的影响,为牦牛高效养殖提供科学基础。研究选取18头健康、体重相近、胎次为2~4次、预产期相近的妊娠后期麦洼牦牛,随机分为放牧对照组(GF)、营养供给组(SF)、早期断奶组(SW)3个组(n=6),GF组牦牛产前及产后阶段均于天然牧场自然放牧,SF组牦牛在产前30 d至产后90 d按妊娠后期、泌乳早期营养需要以“精料+青干草+放牧”方式给予营养均衡供给,SW组牦牛在营养均衡供给基础上,于产后60 d对犊牛进行早期断奶处理。对GF、SF、SW组牦牛所产犊牛初生重、90 d体重及体尺指标进行测定,并采集犊牛90日龄血清样本,分析不同母体营养调控方式下犊牦牛血清生化、生长相关激素分泌及免疫功能差异。结果表明,SF和SW组犊牛的初生重显著高于GF组(P<0.05);90日龄时,SF和SW组犊牦牛的体重、体高以及胸围均显著高于GF组(P<0.05),SW与SF组之间犊牛体重、体尺无显著差异(P>0.05)。与GF组相比,SF和SW组犊牛血清葡萄糖(GLU)、球蛋白(GLB)、胆固醇(CHO)浓度显著上升(P<0.05);SF组TP水平显著高于GF组(P<0.05)。生长相关激素方面,SF和SW组胰岛素样生长因子I(IGF-Ⅰ)水平显著高于GF组(P<0.05);SW组生长激素(GH)浓度显著高于GF组(P<0.05)。SF、GF组犊牦牛血清分泌型免疫球蛋白A(sIgA)浓度显著高于SW组(P<0.05)。相较于GF组,SF、SW组血清免疫球蛋白A(IgA)水平显著升高(P<0.05),SF组血清免疫球蛋白G(IgG)浓度显著高于GF组(P<0.05)。综上所述,营养均衡供给为妊娠后期和泌乳前期牦牛母体提供了充足的养分,通过增加犊牦牛养分摄入,提升了犊牛初生重、血清糖、氮营养代谢物水平,增加了生长相关激素及免疫球蛋白水平,从而促进了犊牦牛生长发育;早期断奶搭配营养均衡供给方式对犊牦牛生长发育、免疫功能无显著负面影响,并进一步促进生长激素分泌。

不同滴灌量对匀播冬小麦生长发育和产量的影响

【目的】研究不同滴灌量对匀播冬小麦产量形成规律的响应,为小麦节水高产提供依据。【方法】以新冬22号为材料,采用田间试验,设置5种滴灌量处理:W_(1)(1800 m^(3)/hm^(2))、W_(2)(2250 m^(3)/hm^(2))、W_(3)(2700 m^(3)/hm^(2))、W_(4)(3150 m^(3)/hm^(2))和CK(对照,3600 m^(3)/hm^(2)),以上5种处理每次滴灌量均为450 m^(3)/hm^(2),研究不同滴灌量对匀播冬小麦植株性状、干物质积累的影响,分析不同滴灌量对匀播冬小麦产量形成响应。【结果】随着滴灌量的增加,各处理小麦旗叶SPAD值和干物质积累量均呈W_(4)>CK>W_(3)>W_(2)>W_(1);在小麦成熟期较CK相比,W_(1)、W_(2)和W_(3)分别节水50%、37.5%和25%,干物质积累量、干物质分配率、穗长、有效小穗、穗数、穗粒数和产量均低于CK;而W_(4)较CK节水12.5%,其干物质积累量、主茎穗长、穗数、穗粒数和产量较CK分别高0.80%、0.69%、1.80%、3.57%和2.86%,主茎有效小穗、分蘖穗长、分蘖有效小穗较CK分别低0.71%、0.52%和0.00%。【结论】W_(4)处理(3150 m^(3)/hm^(2))可以满足冬小麦不同生长时期需水量,从而获得较高的产量。

胎儿宫内及出生后生长轨迹研究进展

胎儿出生体重是妊娠结束时评估胎儿生长状况的最直观指标,但其作为一个单一的衡量指标并不能反映整个妊娠期胎儿生长的动态变化,相似的出生体重可能沿着不同的生长轨迹获得。目前胎儿生长受限或巨大儿等诊断是基于估计胎儿体重或腹围的横断面临界值判断的,而横断面测量可能会遗漏某些未能达到其潜能、但仍高于传统临界值的胎儿亚组,这些亚组的胎儿同样面临不良围产结局的风险。对胎儿生长进行纵向评估可能是解决这一临床问题的有效方法之一。本文从胎儿宫内及出生后生长轨迹的影响因素、不同轨迹下胎儿的远期健康结局等方面进行综述,以期为相关领域的进一步研究提供参考。

乌原鲤早期发育过程中生长及主要消化酶活性和肠道组织变化

本实验探究了乌原鲤(Procypris mera)1 DAH(Day after hatching,日龄)仔鱼到80 DAH幼鱼的生长过程中脂肪酶、淀粉酶、胰蛋白酶、碱性磷酸酶活性变化规律及其生长和肠道组织变化情况。结果显示,乌原鲤仔稚幼鱼阶段全长和体质量的拟合增长方程分别为y=-0.00481x^(2)+1.00636x+3.33020(R^(2)=0.985,P<0.05)和y=0.1731x^(2)+3.76634x-40.61142(R^(2)=0.990,P<0.05),特定生长率为7.7402%/d。肠道组织8 DAH时出现大量的杯状细胞和黏膜褶皱,15 DAH时肠道组织分层明显,27 DAH时黏膜褶皱高度不一、肌肉层增厚,45 DAH时出现肠腺,标志发育趋于完善。脂肪酶、淀粉酶、胰蛋白酶、碱性磷酸酶在1 DAH时均已检测出活性,且这4种消化酶呈现出不同的变化趋势。脂肪酶活性在1~13 DAH时期是先上升后下降趋势并于13 DAH达到最小值(0.654±0.165)U/g,在17 DAH达到峰值(1.437±0.110)U/g后呈先波动下降后显著上升的趋势;淀粉酶活性在3 DAH达到最小值(0.039±0.002)U/g,随后显著上升,在7 DAH达到最大值(0.146±0.005)U/g后呈波动下降趋势;胰蛋白酶活性在6 DAH达到最小值(232.677±26.620)U/mg,在6~13 DAH时期显著上升,在17 DAH后总体呈上升趋势;碱性磷酸酶活性在1~4 DAH时期缓慢上升,在5~13 DAH时期显著上升,在13~35 DAH时期波动下降,在35 DAH后又呈显著上升趋势。由此可得出结论,乌原鲤早期发育过程中的主要消化酶活性随着生长发生显著变化,其消化功能逐渐完善;在5~15 DAH应投喂含有足量蛋白质和脂肪的饵料,在15~45 DAH需投喂充足蛋白质和脂肪的配合饲料,在45~80 DAH需投喂营养均衡并含有一定比例碳水化合物的配合饲料。

稻茬烤烟生长和烟叶品质对促早生快发施肥模式的响应

为解决湖南稻作烟区烤烟大田前期低温阴雨抑制烤烟生长、导致烟叶原料质量差和烤烟品质下降的问题,以云烟87为材料,设计优化基肥(添加微生物菌剂)和提苗肥(配施尿素),即促早生快发施肥模式,通过测定烤烟的农艺性状、干物质积累量和氮积累量、经济性状、物理特性、化学成分并进行烟叶感官评吸,对烟叶产量和质量综合效果进行模糊评价。结果表明:基肥中添加微生物菌剂和专用提苗肥配施尿素,可以提高株高和最大叶叶长、最大叶叶宽、最大叶叶面积,增加烟株干物质积累量和氮积累量,提高烤烟的产量和产值,提高烟叶的平衡含水率和叶片厚度、烟叶总糖含量,降低烟碱含量,提高烟叶感官评吸质量,二者互作最终得到产量和质量综合效果较好的烟叶。与传统基肥和提苗肥的处理相比,经过在基肥中添加微生物菌剂并配施尿素作提苗肥的处理后,烤烟经济性状指数、感官质量指数和综合效果指数可分别提高11.27%、20.01%、12.61%。

早期吞咽功能训练联合重力喂养护理在早产低体重儿中的应用效果

目的:观察早期吞咽功能训练联合重力喂养护理在早产低体重儿中的应用效果。方法:选取2020年6月至2022年6月该院收治的80例早产低体重儿进行前瞻性研究,按照随机数字表法将其分为观察组和对照组各40例。两组均实施常规护理,在此基础上,对照组实施重力喂养护理,观察组在对照组基础上联合早期吞咽功能训练。比较两组喂养相关指标(恢复至出生体质量时间、达到全胃肠内喂养时间、开始经口喂养时间、住院时间)水平、护理前后生长发育指标(身长、体质量、头围)水平、早期神经发育[新生儿20项行为神经测定(NBNA)]评分,以及喂养不良反应发生率。结果:观察组恢复至出生体质量时间、达到全胃肠内喂养时间、开始经口喂养时间、住院时间均短于对照组,差异有统计学意义(P<0.05);护理后,观察组身长、体质量、头围水平均高于对照组,差异有统计学意义(P<0.05);观察组行为能力、被动肌张力、主动肌张力、原始反射、一般评估等NBNA各维度评分及总分均高于对照组,差异有统计学意义(P<0.05);观察组喂养不良反应发生率为17.50%(7/40),低于对照组的40.00%(16/40),差异有统计学意义(P<0.05)。结论:早期吞咽功能训练联合重力喂养护理应用于早产低体重儿可改善喂养相关指标水平,提高生长发育指标水平和早期神经发育评分,降低喂养不良反应发生率,效果优于单纯重力喂养护理。

稻茬烤烟优化基肥和提苗肥对上部烟叶经济性状和品质的影响

为提高稻茬烤烟上部烟叶品质并改善其经济性状,以云烟87为试验材料,采用双因素试验,研究优化基肥(基肥中添加微生物菌剂)和优化提苗肥(提苗肥配施尿素)对烤烟经济性状、物理特性、化学成分、评吸质量的影响。结果表明:基肥添加微生物菌剂可提高上部烟叶产量与产值;提苗肥配施尿素做可提高上部烟叶单叶质量、叶片厚度、叶面积质量和总糖含量;基肥添加微生物菌剂和提苗肥配施尿素处理较基肥不添加微生物菌剂和单施烟草专用提苗肥的上部烟叶经济性状指数提高了11.53%,评吸质量总分提高了16.14%,综合效果指数提高了9.64%。综合来看,在基肥中添加微生物菌剂,并在提苗肥中适量配施尿素,有利于提高上部烟叶产量、产值和烟叶品质。

早期抚触联合捏脊配合袋鼠式护理对早产儿生长发育及环境适应的影响

目的探究采用早期抚触联合捏脊干预配合袋鼠式护理方法运用于早产儿进行护理干预后对患儿生长发育及环境适应的影响及效果。方法选择我院于2021年3月至2023年4月期间收治进行住院治疗的早产儿进行对照性研究,共有研究对象80例,将80例早产儿随机分组,即对照组(40例)与观察组(40例)。对照组早产儿在治疗期间采用常规护理措施,观察组早产儿则在常规护理措施的基础上添加进行早期抚触联合捏脊配合袋鼠式护理。结果观察组早产儿在生长发育方面与对照组早产儿比较,其结果明显较好,P<0.05;观察组早产儿的营养状况明显好于对照组,P<0.05;观察组早产儿的发育商(DQ)评分显著高于对照组,P<0.05。结论早期抚触联合捏脊干预配合袋鼠式护理对早产儿护理干预后,疗效明显,可有效促进患儿的生长发育,同时可有效提高患儿喂养耐受性,有效促进进食和发育,对改善早产儿营养情况及机体抵抗力、免疫力,环境适应均具有重要意义,并能提高神经发育和环境适应性,为早产儿提供安全有益的治疗手段,具有较高的临床推广价值。

分期播种对日光温室板蓝根生长发育、产量及品质的影响

为研究分期播种对日光温室板蓝根生长发育、产量及品质的影响,采用随机区组试验设计,测定不同播种期下板蓝根苗期和定植后的生长指标、定植后的产量及品质。结果表明:随着播种期的推迟,板蓝根出苗时间相应提前,全生育期逐渐缩短而后又延长,苗期及植株各项生长指标总体呈下降趋势,维生素C、可溶性糖、有机酸质量比均有所下降。试验得出,宁夏地区板蓝根设施栽培的最佳播种期为4月中下旬—5月中下旬,最佳定植期为6月上旬—7月上旬,5月20日播种的板蓝根产量高,经济效益高。

早期康复护理在缺氧缺血性脑病新生儿中的应用

目的探讨早期康复护理在缺氧缺血性脑病新生儿中的应用。方法将2018年1月—2021年12月在本院新生儿科治疗的60例缺氧缺血性脑病(HIE)新生儿随机分为两组,对照组实施常规护理,观察组实施早期康复护理,均护理4周,随访1年,对比两组护理效果。结果观察组在6个月龄、12个月龄的头围、体重、身高均大于对照组(P<0.05);观察组12个月龄时的精细运动、大运动、适应性行为、语言、社交行为等Gesell评分均高于对照组(P<0.05);观察组6个月龄、12个月龄的MDI评分、PDI评分、NBNA评分明显高于对照组(P<0.05)。结论早期康复护理在HIE新生儿中的应用效果显著,能有效改善智力、神经行为等发育,促进体格生长。

深沟覆膜对甜糯玉米采收期及产量的影响

为延长鲜穗消费周期和甜糯玉米企业加工期,结合山西忻州当地种植习惯,试验集覆膜、沟垄作、宽窄行为一体的深沟覆膜播种方式,通过与当地使用最广泛的膜侧播种、膜上播种和裸地平作对比,得出以下结论。深沟覆膜形成了小温室,4月可提高土壤温度13.7%~22.4%,促进玉米早发快长,在玉米生长前期干物质积累显著高于其他播种方式,最终产量与其他播种方式无显著差异,但明显缩短了生育期,甜糯玉米采收时间可提前4~19 d,实现早播早收。