Supplementary feeding

补充喂养
  • 文章类型: Journal Article
    三胞胎母羊及其羔羊的低存活率代表着生产损失和福利问题。按报价(FOO;低:1205与高:1980公斤DM/公顷)和浓缩物补充(低:50vs.高:300克/母羊/天)在10个商业农场中,使用1772只三胞胎母羊对三胞胎母羊及其羔羊的存活进行了调查。母羊和羔羊的存活率估计在标记时,在妊娠晚期和标记时记录母羊身体状况评分(BCS)。尽管FOO治疗对三胞胎母羊死亡率没有影响,与较低的补充相比,接受较高的补充将死亡率降低了40%,并在标记时将BCS增加了0.14(p<0.05)。补充,FOO治疗,产羊和庇护所期间的天气条件对三胞胎的存活没有影响。这些发现表明,当妊娠晚期和产仔期间FOO水平超过1200kgDM/ha时,对三胞胎母羊的生存没有额外的好处,但是增加补充剂可以降低母羊的死亡率。需要进一步的研究来确定在较低的FOO水平下对三胞胎的美利诺母羊及其羔羊的补充水平的反应,并确定在怀孕后期和用较高水平的浓缩物补充三胞胎的母羊是否具有成本效益。
    Low survival of triplet-bearing ewes and their lambs represents lost production and a welfare issue. The effects of feed-on-offer (FOO; low: 1205 vs. high: 1980 kg DM/ha) and concentrate supplementation (low: 50 vs. high: 300+ g/ewe/day) levels during late pregnancy and lambing on the survival of triplet-bearing ewes and their lambs were investigated on 10 commercial farms using 1772 triplet-bearing Maternal ewes. Ewe and lamb survival were estimated at marking, and ewe body condition score (BCS) was recorded in late pregnancy and at marking. Although FOO treatment had no effect on triplet-bearing ewe mortality, receiving higher supplementation decreased mortality by 40% and increased BCS at marking by 0.14 compared with a lower supplementation (p < 0.05). Supplementation, FOO treatments, weather conditions during lambing and shelter availability had no effect on triplet-lamb survival. These findings suggest no additional benefit to triplet-bearing ewe survival when FOO levels exceed 1200 kg DM/ha during late pregnancy and lambing, but increased supplementation can reduce ewe mortality. Further research is required to determine the response to the supplementation level at lower FOO levels on triplet-bearing Merino ewes and their lambs and establish whether supplementation of triplet-bearing ewes during late pregnancy and lambing with higher levels of concentrates would be cost-effective.
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  • 文章类型: Journal Article
    已知代表广泛分类群体的动物选择特定的食物组合以实现营养均衡的饮食。营养平衡假说表明,如果有机会,动物选择食物来达到特定的目标营养平衡,这种平衡发生在两餐之间和几天之间。对于居住在以人类土地利用为主的景观中的野生反刍动物来说,营养不平衡的饮食可能是由于摄取富含淀粉和糖的农作物(非结构性碳水化合物[NCs]),可以由人们提供给他们作为补充饲料。这里,我们通过评估Alcesalces(驼鹿)摄入此类作物可能对饲料摄入量的潜在影响来检验营养平衡假设。我们预测,驼鹿通过选择冬季更适合其瘤胃微生物组的具有丰富营养成分的树木饲料来补偿过量NC的摄入不平衡。我们在瑞典冬季应用了DNA元编码来鉴定同一驼鹿中粪便和瘤胃含量的植物。我们发现,粪便中富含NC的作物的浓度可以预测瘤胃样品中云杉(挪威云杉)的存在。这一发现与驼鹿使用树木饲料作为营养补充资源来平衡其富含NC的食物摄入量的预测一致。并且他们特别摄取了白菊(通常是驼鹿很少食用的牧草),因为它是最容易获得的树。我们的发现为草食动物生态学中模型物种的觅食行为提供了新的思路,以及人类栖息地的改变如何改变野生动物的行为。
    Animals representing a wide range of taxonomic groups are known to select specific food combinations to achieve a nutritionally balanced diet. The nutrient balancing hypothesis suggests that, when given the opportunity, animals select foods to achieve a particular target nutrient balance, and that balancing occurs between meals and between days. For wild ruminants who inhabit landscapes dominated by human land use, nutritionally imbalanced diets can result from ingesting agricultural crops rich in starch and sugar (nonstructural carbohydrates [NCs]), which can be provided to them by people as supplementary feeds. Here, we test the nutrient balancing hypothesis by assessing potential effects that the ingestion of such crops by Alces alces (moose) may have on forage intake. We predicted that moose compensate for an imbalanced intake of excess NC by selecting tree forage with macro-nutritional content better suited for their rumen microbiome during wintertime. We applied DNA metabarcoding to identify plants in fecal and rumen content from the same moose during winter in Sweden. We found that the concentration of NC-rich crops in feces predicted the presence of Picea abies (Norway spruce) in rumen samples. The finding is consistent with the prediction that moose use tree forage as a nutritionally complementary resource to balance their intake of NC-rich foods, and that they ingested P. abies in particular (normally a forage rarely eaten by moose) because it was the most readily available tree. Our finding sheds new light on the foraging behavior of a model species in herbivore ecology, and on how habitat alterations by humans may change the behavior of wildlife.
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  • 文章类型: Journal Article
    在非洲,在不同的生产系统中,畜牧业农民正在使用各种各样的饮食(牧草+作物副产品或其他农业副产品)来适应气候变化。这项研究旨在评估苏丹富拉尼泽布牛的各种当地饲养策略的表现。对10只最初年龄为33个月(142kg体重-BW)的牛进行了两个实验。这些动物被喂食八种不同的饮食,摄入水平为3.2%LW的干物质(DM),包括两种100%牧场牧草(100%RF)的对照饮食和六种由牧草和作物副产品组成的实验饮食(75:25DM比例)。在第一个实验中,对照饮食由牧场饲料(RF)组成,补充剂由四种谷物副产品(CC)组成,即玉米,高粱,小米,还有稻草.在第二个实验中,对照饮食包括Panicummaximum(Pmax)干草,测试的补充剂是两种豆类副产品(LC),也就是牛仔和花生。每个实验持续3周,包括2周的饮食适应和1周的个体动物数据收集(摄入量,表观消化率,和肠甲烷)。饮食的NDF含量在每个实验中是不同的(p<0.05)。在含有CC的饮食中,含有稻草的饮食的DM摄入量[g/kgBW]显着高于其他饮食(31%;p=0.025),显示与射频饮食相似的水平。在含有LC的饮食中,摄入显著高于Pmax饮食(p=0.004).花生饲料的摄入量高于cow豆饲料。每个实验中不同饮食之间的DM消化率相似。与RF和Pmax对照饮食相比,来自含CC和LC饮食的肠甲烷(eCH4)产量[g/kgdMI]分别平均降低23%和20%。提高农牧民对作物副产品使用的认识为萨赫勒地区减少eCH4排放提供了真正的前景。
    In Africa, a wide variety of diets (forage + crop co-products or other agricultural by-products) is being used by livestock farmers in different production systems to adapt to climate change. This study aimed to assess the performance of various local feeding strategies on Sudanese Fulani zebu cattle. Two experiments were carried out on 10 steers aged initially 33 months (142 kg body weight - BW). The animals were fed eight different diets at an intake level of 3.2% LW in dry matter (DM), including two control diets of 100% rangeland forage (100% RF) and six experimental diets made up of forage and crop co-products (75:25 DM ratio). In the first experiment, the control diet was made up of rangeland forage (RF) and supplements consisted of four cereal co-products (CC), i.e. maize, sorghum, millet, and rice straws. In the second experiment, the control diet consisted of Panicum maximum (Pmax) hay, and the supplements tested were two legume co-products (LC), i.e. cowpea and peanut haulms. Each experiment lasted 3 weeks, including 2 weeks of adaptation to the diet and 1 week of data collection on individual animals (intake, apparent digestibility, and enteric methane). The NDF content of the diets was different within each experiment (p < 0.05). Among diets containing CC, DM intake [g/kg BW] was significantly higher (+31%; p = 0.025) for the diet containing rice straw than for the other diets, which showed similar levels to the RF diet. Among diets containing LC, intake was significantly higher (p = 0.004) than for the Pmax diet. Intake was higher for the peanut haulm diet than for the cowpea haulm diet. The DM digestibility was similar between the different diets in each experiment. Enteric methane (eCH4) yield [g/kg DMI] from the CC and LC-containing diets were reduced by an average of 23% and 20% compared to the RF and Pmax control diets respectively. Raising awareness among agro-pastoralists about the use of crop co-products offers real prospects for eCH4 emissions mitigation in the Sahel region.
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  • 文章类型: Journal Article
    关于6个月以下(<6米)婴儿营养不良管理的建议是基于有限的证据。本研究旨在描述其特点,尼日利亚东北部无国界医生(MSF)住院和流动治疗性喂养中心(ITFC和ATFC)收治的6米以下营养不良婴儿的治疗结果和结果相关因素,2019-2022年。我们对队列和逻辑回归进行了描述性分析,以衡量两个选定的结局之间的关联-住院患者死亡率和门诊计划的违约-以及可能的相关因素。总的来说,940名<6m的婴儿在ITFC入院。他们中的大多数表现为严重的急性营养不良和合并症,腹泻是最常见的。出院时,13.3%(n=125)的婴儿治愈,72.9%(n=684)稳定(参考ATFC),6.5%(n=61)不建议就医,4.2%(n=39)死亡。平均住院时间为10天[IQR7-14]。住院时间短于10天与住院患者死亡率显着相关(aOR=12.51,95%置信区间[CI]=3.72-42.11,p≤0.01)。在ATFC随访的561名婴儿中,只有2.8%报告合并症。出院时,80.9%(n=429)被治愈,16.2%(n=86)违约,1.1%(n=6)死亡。男性(aOR=1.94,95%CI=1.15-3.27,p=0.01),内部流离失所状态(aOR=1.70,95%CI=1.05-2.79,p=0.03)和<-3WLZ(aOR=1.95,95%CI=1.05-3.63,p=0.03)与计划违约显着相关。在所研究的项目中,营养不良婴儿的稳定和恢复率<6m符合人道主义背景下的可接受标准。应进一步探讨门诊护理的显着违约率。
    Recommendations for the management of malnutrition among infants aged less than 6 months (<6 m) are based on limited evidence. This study aimed to describe the characteristics, treatment outcomes and outcome-associated factors among malnourished infants <6 m admitted at Médecins Sans Frontières (MSF) inpatient and ambulatory therapeutic feeding centres (ITFC and ATFC) in North-East Nigeria, 2019-2022. We conducted a descriptive analysis of the cohorts and logistic regression to measure the association between two selected outcomes-inpatient mortality and defaulting from the ambulatory programme-and possible factors associated. In total, 940 infants <6 m were admitted at ITFC. Most of them presented severe acute malnutrition and comorbidities, with diarrhoea being the most frequent. On discharge, 13.3% (n = 125) of infants were cured, 72.9% (n = 684) stabilized (referred to ATFC), 6.5% (n = 61) left against medical advice and 4.2% (n = 39) died. The median length of hospital stay was 10 days [IQR 7-14]. A hospital stay shorter than 10 days was significantly associated with inpatient mortality (aOR = 12.51, 95% confidence interval [CI] = 3.72-42.11, p ≤ 0.01). Among 561 infants followed up at the ATFC, only 2.8% reported comorbidities. On discharge, 80.9% (n = 429) were cured, 16.2% (n = 86) defaulted and 1.1% (n = 6) died. Male sex (aOR = 1.94, 95% CI = 1.15-3.27, p = 0.01), internally displaced status (aOR = 1.70, 95% CI = 1.05-2.79, p = 0.03) and <-3 WLZ (aOR = 1.95, 95% CI = 1.05-3.63, p = 0.03) were significantly associated with programme defaulting. Stabilization and recovery rates among malnourished infants <6 m in the studied project align with acceptable standards in this humanitarian setting. Notable defaulting rates from outpatient care should be further explored.
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  • 文章类型: Randomized Controlled Trial
    需要进行先天性心脏病(CHD)手术的新生儿在术后经常难以口服喂食,并且在出院时可能需要喂食管。这项研究的目的是确定口腔或鼻插管途径对出院时喂养方法的影响。这是一项针对2018年至2021年间接受冠心病手术的62例新生儿的非盲随机对照试验。鼻部(25例)和口腔(37例)组的婴儿在喂养困难的术前风险因素方面相似,包括出生时完成孕周(39vs38周),出生体重(3530vs3100克),术前PO摄入量(92%vs81%),术前插管率(22%vs28%)。手术风险因素也相似,包括胸外科医师协会-欧洲心胸外科协会类别(3.9vs4.1),分流安置(32%对41%),体外循环时间(181vs177分钟),和交叉钳制时间(111对105分钟)。96%的鼻插管患者通过出院完全口服喂养,而78%的口服插管婴儿(p=0.05)。经鼻插管的婴儿比经口插管的婴儿平均提前3天达到完全经口喂养。在这群患者中,与经口插管的同龄人相比,经鼻插管的婴儿更快达到经口喂养,并且不太可能需要补充管喂养。插管途径是口腔厌恶的潜在可改变的危险因素,在新生儿中似乎是安全的。该研究获得了弗吉尼亚大学健康科学研究机构审查委员会的批准,并于2022年5月18日在clinicaltrials.gov(NCT05378685)上进行了回顾性注册。
    Neonates who require surgery for congenital heart disease (CHD) frequently have difficulty with oral feeds post-operatively and may require a feeding tube at hospital discharge. The purpose of this study was to determine the effect of oral or nasal intubation route on feeding method at hospital discharge. This was a non-blinded randomized control trial of 62 neonates who underwent surgery for CHD between 2018 and 2021. Infants in the nasal (25 patients) and oral (37 patients) groups were similar in terms of pre-operative risk factors for feeding difficulties including completed weeks of gestational age at birth (39 vs 38 weeks), birthweight (3530 vs 3100 g), pre-operative PO intake (92% vs 81%), and rate of pre-operative intubation (22% vs 28%). Surgical risk factors were also similar including Society of Thoracic Surgeons-European Association for Cardio-Thoracic Surgery category (3.9 vs 4.1), shunt placement (32% vs 41%), cardiopulmonary bypass time (181 vs 177 min), and cross-clamp time (111 vs 105 min). 96% of nasally intubated patients took full oral feeds by discharge as compared with 78% of orally intubated infants (p = 0.05). Nasally intubated infants reach full oral feeds an average of 3 days earlier than their orally intubated peers. In this cohort of patients, nasally intubated infants reach oral feeds more quickly and are less likely to require supplemental tube feeding in comparison to orally intubated peers. Intubation route is a potential modifiable risk factor for oral aversion and appears safe in neonates. The study was approved by the University of Virginia Institutional Review Board for Health Sciences Research and was retrospectively registered on clinicaltrials.gov (NCT05378685) on May 18, 2022.
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  • 文章类型: Journal Article
    放牧是一种常见的饲养方法。我们研究了放牧期间补充对牛奶产量和成分的影响,血液生物化学,伊犁马的粪便微生物。控制母马正常放牧,而I组和II组接受1kg/d的浓缩物和1kg/d的浓缩物+0.4kg/d的涂层FA,分别。Ⅰ组和Ⅱ组的奶量明显高于对照组,在前两次中,II组的牛奶量明显高于I组。乳脂,乳糖,II组的蛋白质水平明显高于其他组。I组BUN显著低于对照组。具体FAs,总SFA,II组的总UFA明显高于其他组。喂食后,等离子体GLU,免费FA,TG,LDL,Ⅱ组VLDL显著高于其他组。对照组,I组,第二组有4984、5487和5158个OTU,分别,3483个OTUs是所有组的共同点。拟杆菌和厚壁菌的丰度>75%。I组和II组的Verrucomicrobia的丰度明显高于对照组,在前两次中,II组明显高于I组。对照组和其他组之间的螺旋体_糖原的丰度显着不同,和WCHB1_41,Kiritimatielae,和Verrucomicrobia的丰度在II组和其他组之间显着不同。
    Grazing is a common approach to rearing. We investigated the effects of supplementation during grazing on milk yield and composition, blood biochemistry, and fecal microflora in Yili horses. The control mares grazed normally, while those in groups I and II received 1 kg/d of concentrate and 1 kg/d of concentrate + 0.4 kg/d of coated FA, respectively. Milk volumes were significantly higher in groups I and II than in the control group, and among the previous two, milk volumes were significantly higher in group II than in group I. Milk fat, lactose, and protein levels were significantly higher in group II than in the others. BUN was highly significantly lower in group I than in the control group. Specific FAs, total SFA, and total UFA were significantly higher in group II than in the other groups. After feeding, plasma GLU, free FA, TG, LDL, and VLDL were significantly higher in group II than in the other groups. The control group, group I, and group II had 4984, 5487, and 5158 OTUs, respectively, and 3483 OTUs were common to all groups. The abundance of Bacteroidetes and Firmicutes was >75%. The abundance of Verrucomicrobia was significantly higher in groups I and II than in the control group and, among the previous two, significantly higher in group II than in group I. The abundance of Treponema_saccharophilum significantly differed between the control and other groups, and WCHB 1_41, Kiritimatiellae, and Verrucomicrobia abundances significantly differed between groups II and the other groups.
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  • 文章类型: Journal Article
    背景:气候变化的影响,在过去的几十年中,Fennoscandia的半驯化驯鹿(Rangifertarandustarandus)的补充饲料增加的主要原因是牧场流失到其他土地利用以及大型食肉动物的存在。喂养可能会使驯鹿承受压力,并增加动物与动物的接触,导致传染病传播的风险增加,如感染性角膜结膜炎(IKC)。因为它可以快速发展并且非常痛苦,IKC被描述为重要的动物福利问题和潜在的经济损失来源。这项研究的目的是通过在线问卷调查来调查IKC的当前存在以及IKC和补充喂养之间的潜在关联,2021年分布在挪威和瑞典的驯鹿牧民中。
    结果:76名驯鹿牧民(33名来自挪威,43名来自瑞典)回答了问卷,分别占挪威和瑞典注册驯鹿牧群的6%和4%,分别。感染性角膜结膜炎很常见,在过去的10年中,76名牧民中有54名(71%)出现了临床症状。这些症状主要表现为流泪增加,导致“湿脸颊”,也有角膜炎和结膜炎。秋季和冬季是观察到IKC最多的季节。牧民报告了几项措施,例如屠宰和隔离受影响的驯鹿,阻止疾病的传播。2019/2020年的放牧年与牧群中IKC爆发的报道有关,也是大多数牧民(80%)进行补充喂养的放牧年。发现IKC与在围栏中进行的喂养之间存在显着关联(比值比=15.20),虽然以自由放养地区为食没有显著,负,与IKC暴发出现的关系(比值比=0.29)。最后,数据中有一个趋势表明IKC尤其影响小牛.
    结论:感染性角膜结膜炎是一种常见疾病,主要在冬季和秋季观察。它通常具有轻度至中度严重的临床体征。我们的结果表明,IKC与压力和喂养情况有关,小牛可能比成年人更容易受到影响。然而,这需要进一步的研究来证实,优选在个体动物水平。
    BACKGROUND: The effects of climate change, loss of pastureland to other land usage and presence of large carnivores are the main reasons for the increase in supplementary feeding of semi-domesticated reindeer (Rangifer tarandus tarandus) in Fennoscandia over the last decades. Feeding might expose reindeer to stress and increased animal-to-animal contact, leading to an increased risk of infectious disease transmission, such as infectious keratoconjunctivitis (IKC). As it can develop rapidly and be very painful, IKC is described as an important animal welfare concern and a potential source of economic loss. The aim of this study was to investigate the current presence of IKC and potential associations between IKC and supplementary feeding through an online questionnaire survey, distributed among reindeer herders in Norway and Sweden in 2021.
    RESULTS: Seventy-six reindeer herders (33 from Norway and 43 from Sweden) responded to the questionnaire, representing 6% and 4% of the registered reindeer herding groups in Norway and Sweden, respectively. Infectious keratoconjunctivitis was common, with 54 (71%) of the 76 herders that responded having observed clinical signs during the past 10 years. These signs were mainly observed as increased lacrimation, causing \"wet cheeks\", but also as keratitis and conjunctivitis. Autumn and winter were the seasons in which IKC was observed most. The herders reported several measures, such as slaughter and isolation of affected reindeer, to counteract the spread of disease. The herding year 2019/2020 was associated with reports of outbreaks of IKC in herds as well as being the herding year where most herders (80%) had performed supplementary feeding. A significant association was found between IKC and feeding performed in an enclosure (odds ratio = 15.20), while feeding on free-range areas had a non-significant, negative, relationship with the appearance of IKC outbreaks (odds ratio = 0.29). Finally, there was a trend in the data suggesting that IKC affected calves especially.
    CONCLUSIONS: Infectious keratoconjunctivitis is a common disease, mainly observed in winter and autumn. It usually has mild to moderately severe clinical signs. Our results imply that IKC is associated with stress and feeding situations and that calves might be more susceptible than adults, however, this needs to be confirmed with further studies, preferably at an individual animal level.
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  • 文章类型: Journal Article
    本研究旨在确定补充饲料对Jamuna盆地羔羊car体性状和肉质的最佳水平。将40只选定的羔羊分为4种处理,例如T0(无浓缩物补充),T1(1%浓缩饲料),T2(1.5%浓缩饲料)和T3(2%浓缩饲料),每次处理10只羔羊。采用SAS软件进行完全随机设计(CRD)分析。热屠体,敷料百分比,头部,腿,脖子,腰部,心,随着浓缩饲料的增加,脾脏重量和脾脏重量显着增加(p<0.05)。粗蛋白(CP),除T2处理外,乙醚提取物(EE)和灰分值均显着增加(p<0.001)。除T2外,最终pH显著增加,除T3处理外,熟化pH显著降低(p<0.001)。除T3处理外,滴漏损失和蒸煮损失(CL)%显著降低(p<0.001)。除T3处理外,持水量(WHC)%显著增加(p<0.001)。颜色的得分,多汁性和压痛有显著差异(p<0.001)。在不同处理中,风味和总体可接受性评分显著增加(p<0.05)。在所有处理中,颜色值L*和b*具有显著变化(p<0.001),并且发现a*值显著更高(p<0.05)。因此,含1.5%浓缩饲料的12个月龄羔羊在屠体上表现更好,营养,物理化学,感官和仪器颜色值,以提高羔羊的car体和肉质。
    This study aimed to identify the optimum level of supplementary feeds on the carcass traits and meat quality of Jamuna basin lambs. Forty selected lambs were divided into four treatments such as T0 (no concentrate supplementation), T1 (1% concentrate feed), T2 (1.5% concentrate feed) and T3 (2% concentrate feed) having ten lambs per treatment. The data were analyzed through Completely Randomized Design (CRD) with SAS software. Hot carcass, dressing percentage, head, leg, neck, loin, heart, and spleen weight were showed significantly (p < 0.05) higher values with increasing concentrate feed. The crude protein (CP), ether extract (EE) and ash values were significantly increased (p < 0.001) except T2 treatment. The ultimate pH was significantly increased except T2 and cooked pH was significantly decreased (p < 0.001) except T3 treatment. Drip loss and cooking loss (CL) % had significantly reduced (p < 0.001) except T3 treatment. The water holding capacity (WHC) % was significantly increased (p < 0.001) except T3 treatment. The score of color, juiciness and tenderness were significantly different (p < 0.001). Flavor and overall acceptability score were significantly increased (p < 0.05) in different treatments. The color values L* and b* had significantly changed (p < 0.001) and a* value was found significantly higher (p < 0.05) in all treatments. Hence, 12 months of aged lambs with 1.5% concentrate feed showed better performances on carcass, nutritional, physicochemical, sensory and instrumental color values to increase the carcass and the meat quality of lambs.
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  • 文章类型: Journal Article
    背景:对于中度消瘦的儿童是否应该接受补充喂养存在不确定性。
    目的:我们研究了在中度消瘦的儿童中,与单纯的咨询相比,补充喂养是否可以预防严重急性营养不良(SAM)或死亡的进展。
    方法:这是一个回顾性研究,双队列研究,其中1,791名中度消瘦儿童来自先前在塞拉利昂农村地区同一地点进行的2项随机对照试验.共有1077名儿童接受了补充喂养,而714名儿童仅接受咨询。两个队列中的儿童从入学开始随访≥24周。使用Kaplan-Meier分析,主要结果是到SAM或死亡的时间。次要结果包括至死亡的时间以及具有健康错误臂围(MUAC)的儿童比例,适度消瘦,SAM,或在注册后6周、12周和24周死亡。
    结果:接受补充喂养的儿童在整个随访期间发生SAM或死亡的可能性较小(HR:0.53;95%CI:0.44,0.65;P<0.001)。仅死亡时间也显示接受补充喂养的儿童的风险较低(HR:0.52;95%CI:0.28,0.94;P=0.03)。接受补充喂养的儿童在第6周(RR:2.0;95%CI:1.7,2.2)和第12周(RR:1.3;95%CI:1.2,1.5)时更可能有健康的MUAC,在6岁时发展SAM的可能性较小(RR:0.7;95%CI:0.6,0.9),12(RR:0.5;95%CI:0.3,0.8),和24周(RR:0.2;95%CI:0.1,0.5),并且在6周和12周时体重增加和MUAC的速率更高。
    结论:在24周的随访中,对中度消瘦的儿童进行补充喂养可降低SAM和死亡的风险。
    There is uncertainty about whether children with moderate wasting should receive supplementary feeding.
    We examined whether supplementary feeding compared with counseling alone in children with moderate wasting prevented progression to severe acute malnutrition (SAM) or death.
    This was a retrospective, dual-cohort study in which 1791 children with moderate wasting were drawn from 2 prior randomized controlled trials that took place in the same location in rural Sierra Leone. A total of 1077 children received supplementary feeding, whereas 714 children received counseling alone. Children in both cohorts were followed for ≥24 wk from enrollment. The primary outcome was time to SAM or death using Kaplan-Meier analysis. Secondary outcomes included time to death as well as proportions of children with healthy midupper arm circumference (MUAC), moderate wasting, SAM, or death at 6, 12, and 24 wk from enrollment.
    Children who received supplementary feeding were less likely to develop SAM or die across the entire follow-up period (HR: 0.53; 95% CI: 0.44, 0.65; P < 0.001). Time to event for death alone also revealed a lower risk for children who received supplementary feeding (HR: 0.52; 95% CI: 0.28, 0.94; P = 0.03). Children who received supplementary feeding were more likely to have a healthy MUAC at 6 wk (RR: 2.0; 95% CI: 1.7, 2.2) and 12 wk (RR: 1.3; 95% CI: 1.2, 1.5), were less likely to develop SAM at 6 (RR: 0.7; 95% CI: 0.6, 0.9), 12 (RR: 0.5; 95% CI: 0.3, 0.8), and 24 wk (RR: 0.2; 95% CI: 0.1, 0.5), and had higher rates of gain in weight and MUAC at 6 and 12 wk.
    Supplementary feeding of children with moderate wasting reduces risk of SAM and death across 24 wk of follow-up.
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  • 文章类型: Journal Article
    刺猬发生在英国的城市哺乳动物行会中。这个行会通常利用人为食物供应,这对野生动物种群有潜在的好处,但也可能使竞争对手和掠食者接近,提出了这些物种在城市花园中如何相互作用的问题。在这项研究中,我们确定了刺猬之间的相互作用,狐狸,badgers,和家猫使用通过公民科学提交的视频。我们分析了物种内部和物种之间的相互作用,以确定相互作用类型,等级关系,以及补充食物存在/量的影响。我们发现,个体之间的整体激动性相互作用(55.4%)比中性相互作用(44.6%)发生得更频繁,种间相互作用(55.4%)比种内相互作用(36%)表现出更大的激动性。在种内相互作用中,刺猬之间的激动程度最高(54.9%),而the之间的激动程度最低(6.7%)。相互作用的物种组成影响激动,猫和狐狸之间的相互作用表现出最高水平(76.7%)。就整体“赢”而言,那里获得了花园资源,badgers统治着猫,占主导地位或等于狐狸,以刺猬为主.然而,与猫相比,刺猬的总体获胜比例更高(39.3%)。我们的发现对于有文献记载的零星资源对城市野生动物行为的影响很重要,我们表明,提供人为食物可能会导致意想不到的后果。我们建议采取行动,以减少行会竞争对手在空间和时间上的接近,以限制负面影响。
    Hedgehogs occur within an urban mammal guild in the United Kingdom. This guild commonly utilizes anthropogenic food provision, which is potentially beneficial to wild animal populations, but may also bring competitors and predators into proximity, raising the question of how these species interact in urban gardens. In this study, we determined interactions between hedgehogs, foxes, badgers, and domestic cats using videos submitted via citizen science. We analyzed interactions within and between species to determine interaction type, hierarchical relationships, and effect of supplementary food presence/amount. We found that overall agonistic interactions between individuals occurred more frequently (55.4%) than neutral interactions (44.6%) and that interspecific interactions showed greater agonism (55.4%) than intraspecific ones (36%). Within intraspecific interactions, those between hedgehogs were the most agonistic (54.9%) and between badgers the least (6.7%). Species composition of the interaction affected agonism, with interactions between cats and foxes showing the highest level (76.7%). In terms of overall \"wins\", where access to garden resources was gained, badgers dominated cats, which were dominant or equal to foxes, which dominated hedgehogs. However, hedgehogs exhibited a greater overall proportion of wins (39.3%) relative to cats. Our findings are important in the context of the documented impact of patchy resources on urban wildlife behavior, and we show that provision of anthropogenic food can potentially result in unintended consequences. We recommend actions to reduce proximity of guild competitors in space and time to limit negative effects.
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