Effects of Black Soldier Fly Larvae on the Fecal Characteristics, Skin and Coat Health Markers, Immune Function, and Oral Health Measures of Healthy Adult Cats.

IF 2.7 2区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Patrícia M Oba, Vanessa M De La Guardia-Hidrogo, Olivia R Swanson, Julio C Mioto, Elizabeth A Koutsos, Daniel Adams, Gene Pavlovsky, Stephanie C J Keating, Andrew J Steelman, Kelly S Swanson
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引用次数: 0

Abstract

Black soldier fly larvae (BSFL) is a recently approved alternative protein source for dog and cat foods and treats in the US, but research in cats remains limited. The objective of this study was to determine the effects of BSFL on the serum chemistry, hematology, skin and coat health markers, fecal characteristics, immune function, and oral health measures of healthy adult cats. Twenty-five adult cats (17 females and 8 males; 6.28 ± 0.27 yr; 4.50 ± 0.18 kg) were used in a completely randomized design. The study was composed of a 21-d baseline period and a 70-d experimental period. During the baseline period, all cats were fed a chicken meal-based control diet (35% of diet). After baseline, cats were assigned to 1 of 2 experimental diets: control diet (n=12) or a BSFL-containing diet (20% whole BSFL meal and 24% chicken meal; n=13). At baseline, teeth were cleaned by a veterinarian. Breath samples were analyzed for odor components, salivary pH was measured, and blood samples were collected after baseline cleaning, d 35, and d 70. Feces were scored, fecal samples were collected, skin was assessed, and hair was collected at baseline and d 70. Oral health indicators were assessed by a board-certified veterinarian at d 70. Data were analyzed using the mixed models procedure of SAS, testing for effects of diet (oral microbiota) or diet, time, and diet*time (variables measured over time), with P<0.05 being significant. Diet*time interactions (P<0.05) were noted for blood calcium, cholesterol, and triglyceride concentrations and fecal characteristics, metabolite concentrations, and microbiota populations. Some hematologic measures were affected by time, but none were impacted by diet. Cats fed BSFL had lower (P<0.05) fecal pH, dry matter, and phenol, indole, and branched-chain fatty acid concentrations, and greater (P<0.05) fecal scores and short-chain fatty acid concentrations. Fecal microbiota populations were affected by BSFL, with alpha diversity, beta diversity, and >20 bacterial genera being different between groups. Immune markers, skin and hair measures, salivary pH, breath odor, and oral microbiota and health measures were unaffected by the diet. In conclusion, a 20% dietary BSFL inclusion had clear effects on the fecal characteristics, metabolites, and microbiota of healthy adult cats, shifting most outcomes in a positive direction. Inclusion of BSFL had mild effects on serum metabolites and did not significantly affect the other variables measured.

黑兵蝇幼虫对健康成年猫粪便特征、皮肤和皮毛健康指标、免疫功能和口腔健康指标的影响
黑兵蝇幼虫(BSFL)最近在美国被批准为狗和猫食品和零食的替代蛋白质来源,但对猫的研究仍然有限。本研究的目的是确定BSFL对健康成年猫的血清化学、血液学、皮肤和被毛健康指标、粪便特征、免疫功能和口腔健康指标的影响。25只成年猫(17只母猫和8只公猫);6.28±0.27年;4.50±0.18 kg),采用完全随机设计。研究分为21 d的基线期和70 d的试验期。在基线期,所有猫都喂食以鸡粉为基础的对照饮食(占饮食的35%)。基线后,猫被分配到两种试验饲粮中的一种:对照饲粮(n=12)或含BSFL的饲粮(20%全BSFL粉和24%鸡粉;n = 13)。在基线时,由兽医清洁牙齿。分析呼吸样本的气味成分,测量唾液pH值,并在基线清洁后,第35天和第70天收集血液样本。对粪便进行评分,收集粪便样本,评估皮肤,并在基线和70 d时收集毛发。口腔健康指标在70岁时由委员会认证的兽医评估。数据分析采用SAS混合模型程序,检测日粮(口腔微生物群)或日粮、时间和日粮*时间(随时间测量的变量)的影响,各组间P20细菌属不同。免疫指标、皮肤和头发指标、唾液pH值、呼吸气味、口腔微生物群和健康指标均未受到饮食的影响。综上所述,饲粮中添加20%的BSFL对健康成年猫的粪便特征、代谢物和微生物群有明显影响,大多数结果都朝着积极的方向发展。BSFL的加入对血清代谢物有轻微影响,对其他测量变量没有显著影响。
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来源期刊
Journal of animal science
Journal of animal science 农林科学-奶制品与动物科学
CiteScore
4.80
自引率
12.10%
发文量
1589
审稿时长
3 months
期刊介绍: The Journal of Animal Science (JAS) is the premier journal for animal science and serves as the leading source of new knowledge and perspective in this area. JAS publishes more than 500 fully reviewed research articles, invited reviews, technical notes, and letters to the editor each year. Articles published in JAS encompass a broad range of research topics in animal production and fundamental aspects of genetics, nutrition, physiology, and preparation and utilization of animal products. Articles typically report research with beef cattle, companion animals, goats, horses, pigs, and sheep; however, studies involving other farm animals, aquatic and wildlife species, and laboratory animal species that address fundamental questions related to livestock and companion animal biology will be considered for publication.
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