Tropical animal health and production最新文献

{"title":"Sperm production, gonadal oxidative stress, DNA damage biomarkers and reproductive hormonal responses of cocks fed AFB1-contaminated diets supplemented with wireweed leaf.","authors":"Olumuyiwa Joseph Olarotimi, Francis Ayodeji Gbore, Olugbenga David Oloruntola, Olatunji Abubakar Jimoh, Andrew Bamidele Falowo, Catherine Olukemi Adeniran","doi":"10.1007/s11250-024-04251-0","DOIUrl":"10.1007/s11250-024-04251-0","url":null,"abstract":"<p><p>To assess the ameliorative effects of wireweed leaf supplement (WLS) and ascorbate on reproductive potentials and gonadal oxidative status of cocks fed aflatoxin B1 (AFB1) contaminated diets, a total of 250 sexually mature cocks were distributed into five treatment groups: 1 (Control/Basal diet), 2 (Basal + 1 mg/kg AFB1), 3 (Basal + 1 mg/kg AFB1 + 200 mg/kg Ascorbate), 4 (Basal + 1 mg/kg AFB1 + 2.50 g/kg WLS) and 5 (Basal + 1 mg/kg AFB1 + 5.00 g/kg WLS). Each group was replicated 5 times with 10 cocks per replicate. The cocks in group 2 recorded significantly (P < 0.05) reduced daily sperm production and efficiency; gonadal antioxidative enzymes: superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx), total proteins, luteinising hormone and testosterone concentrations while there were significant (P < 0.05) elevations in the gonadal malondialdehyde (MDA), myeloperoxidase (MPO) peroxidation activity, 8-hydroxy-2'-deoxyguanosine (8-OHdG) and nitric oxide (NO) levels when compared with cocks in the control group. However, cocks in groups 3, 4 and 5 recorded improvements in all the parameters studied when compared with group 2 cocks. Therefore, inclusions of WLS and ascorbate were beneficial to the reproductive potentials of cocks fed AFB1 contaminated diets.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"14"},"PeriodicalIF":1.7,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142910910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between fiber quality and follicle density in Ch'aku llamas (Lama glama).","authors":"Virgilio Machaca, Julio Málaga, Oscar Gómez-Quispe","doi":"10.1007/s11250-024-04263-w","DOIUrl":"10.1007/s11250-024-04263-w","url":null,"abstract":"<p><p>In the high altitudes of the Andes, llama breeders shear the fiber from their animals, obtaining fleeces for many purposes. Dehairing the fleece of these animals is a viable alternative to improving the quality and value of the fleece. The study examined the attributes of fiber quality and pilose follicle of dehaired and non-dehaired fleece from Ch'aku llamas and the relationship among these characteristics. From 80 animals, 480 fleece samples (240 dehaired and 240 non-dehaired), and 198 skin biopsies of dehaired specimens were collected. The data was analyzed using a model that contain fleece type effect, age group effect, sex effect, body region effect, and their respective interactions. Also, the Spearman correlation between fiber quality attributes and pilose follicle traits was calculated. The findings showed that non-dehaired fiber had a diameter of 22.01 ± 0.17 µm, while dehaired fiber measured 20.85 ± 0.16 µm. Removing the hair from the fiber resulted in a decrease in the average fiber diameter, standard deviation, and coefficient of variation while increasing the comfort factor and curvature index. The age group had an impact on primary follicles, secondary follicles, follicular density, and follicular index. Furthermore, gender influenced secondary follicles and follicular density, whereas body region affected secondary follicles and follicular density. Negative correlations were observed between mean of follicular density (MFoD) and mean fiber diameter (MFD), as well as curvature ratio (CRV), whereas a positive correlation was found between mean of follicular index (MFoI) and MFoD, and a negative correlation was noted between MFoI and CRV. It is concluded that the dehairing of the Ch'aku llama fiber improves the quality of the fleece.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"12"},"PeriodicalIF":1.7,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142898388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of hay type and breed on the fattening, centesimal and fatty acid composition of Nigerian sheep.","authors":"Immanuel Ishaku Madziga, Sadiku Musa Otaru, Cyril Ugochukwu Osuhor, Romilda Rodrigues do Nascimento, Gildenia Araújo Pereira, José Morais Pereira Filho, Leilson Rocha Bezerra, Clarence Ayodele Mawo Lakpini","doi":"10.1007/s11250-024-04256-9","DOIUrl":"10.1007/s11250-024-04256-9","url":null,"abstract":"<p><p>This study aimed to evaluate the intake, performance, quality, and fatty acids (FA) composition of the meat of three Nigerian sheep breeds (Balami, Uda, and Yankasa) fed two different hays, Brachiaria decumbens or Digitaria smutsii. A total of sixty sheep, twenty from each breed, Balami, Uda, and Yankasa, were used, with average body weights of 24.7 ± 3.5 kg, 25.5 ± 3.6 kg, and 25.5 ± 3.5 kg, respectively. The sheep were arranged in a factorial 2 (hay types) × 3 (breeds) design within a completely randomized setup, totalling ten experimental units per treatment. There was no significant (p > 0.05) interaction effect between breed and hay type on any variables. Sheep-fed D. smutsii hay presented higher (p ≤ 0.05) DM intake from the concentrate, hay, total feed, final BW, ADG, intramuscular fat, and FA contents than sheep-fed B. decumbens, except for 18:1n-9, where sheep fed B. decumbens presented higher (p ≤ 0.05) concentration. Balami sheep presented higher (p ≤ 0.05) total weight gain than the Uda breed and once performed better than the Yankasa breed, without difference (p > 0.05) to feed efficiency. Longissimus lumborum of the Yankasa breed presented lower concentrations (p ≤ 0.05) of total polyunsaturated FA (PUFA) than Balami and Uda sheep. The content of n-3 and n-6 PUFA (linolenic, EPA, DPA, and DHA), n-6/n-3 ratio, and EPA + DHA were higher in the Balami sheep than in the Uda sheep. Balami breed had the highest carcass weight and meat protein content but had a lower (p ≤ 0.05) moisture content than other breeds. Uda and Yankasa sheep presented similar moisture content (p ≤ 0.05). However, the carcass weight, protein, and fat content of the longissimus lumborum were higher (p ≤ 0.05) in Uda compared to Yankasa sheep. Nigerian sheep fed D. smutsii hay compared to B. decumbens hay to provide greater DM intake, improving fattening and meat fat and increasing all fatty acids in the longissimus lumborum. Balami breed presented greater DM intake, performance, and carcass weight, and consequently higher intramuscular fat deposition and concentration of most fatty acids in the longissimus lumborum than the breeds Uda and Yankasa.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"11"},"PeriodicalIF":1.7,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142898386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selection signatures associated with adaptation in South African Drakensberger, Nguni, and Tuli beef breeds.","authors":"Gomo Maxman, Este van Marle-Köster, Simon Frederick Lashmar, Carina Visser","doi":"10.1007/s11250-024-04265-8","DOIUrl":"10.1007/s11250-024-04265-8","url":null,"abstract":"<p><p>In the present study 1,709 cattle, including 1,118 Drakensberger (DRB), 377 Nguni (NGI), and 214 Tuli (TUL), were genotyped using the GeneSeek® Genomic Profiler™ 150 K bovine SNP panel. A genomic data set of 122,632 quality-filtered single nucleotide polymorphisms (SNPs) were used to identify selection signatures within breeds based on conserved runs of homozygosity (ROH) and heterozygosity (ROHet) estimated with the detectRUNS R package. The mean number of ROH per animal varied across breeds ranging from 36.09 ± 12.82 (NGI) to 51.82 ± 21.01 (DRB), and the mean ROH length per breed ranged between 2.31 Mb (NGI) and 3.90 Mb (DRB). The smallest length categories i.e., ROH < 4 Mb were most frequent, indicating historic inbreeding effects for all breeds. The ROH based inbreeding coefficients (F_ROH) ranged between 0.033 ± 0.024 (NGI) and 0.081 ± 0.046 (DRB). Genes mapped to candidate regions were associated with immunity (ADAMTS12, LY96, WDPCP) and adaptation (FKBP4, CBFA2T3, TUBB3) in cattle and genes previously only reported for immunity in mice and human (EXOC3L1, MYO1G). The present study contributes to the understanding of the genetic mechanisms of adaptation, providing information for potential molecular application in genetic evaluation and selection programs.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"13"},"PeriodicalIF":1.7,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11680604/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142898390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genome-wide association studies of milk composition traits in indicine Badri cattle using ddRAD sequencing approach.","authors":"Javid Ur Rahman, Devendra Kumar, Satya Pal Singh, Bijendra Narayan Shahi, Ashis Kumar Ghosh, Aashaq Hussain Dar, Oshin Togla","doi":"10.1007/s11250-024-04266-7","DOIUrl":"10.1007/s11250-024-04266-7","url":null,"abstract":"<p><p>Genome-wide association studies (GWAS) offer potential for discovering genomic regions that can be exploited to increase milk production. However, available GWAS and single nucleotide polymorphism (SNP) datasets are heavily skewed towards taurine breeds, which restricts their utility for genomic research in indicine cattle breeds. This study conducts a GWAS on the Badri breed of Indicine cattle to estimate variance components and identify significant variants associated with milk composition traits, utilizing double digest restriction-site associated DNA (ddRAD) sequencing data. A total of 65,483 high-confidence SNPs were identified and utilized to conduct GWAS on various milk composition traits, including fat percent (FP), protein percent (PP), casein percent (CP), lactose percent (LP), glucose percent (GP), galactose percent (GLP), total solids percent (TS), and solids-not-fat percent (SNF), each analysed separately. The heritability estimates for the studied milk composition traits were 0.386 for fat percent (FP), 0.427 for protein percent (PP), 0.469 for casein percent (CP), 0.567 for lactose percent (LP), 0.547 for glucose percent (GP), 0.590 for galactose percent (GLP), 0.437 for total solids percent (TS), and 0.476 for solids-not-fat percent (SNF). Several genomic regions and candidate genes, including SLC9A9, LPP, C2H2orf76, LGSN, HMGCS2, Bv1, SCYL2, PLAC8, SRGAP2, CR2, ZNF787, OTUB2, DSC2, SYNPO2, and CTNNA3 which may have a potential role in regulating milk production in indicine cattle were identified. The high confidence SNPs and candidate genes will be an important inclusion into commercial genotyping arrays for the early and best selection of breeding animals for desired milk composition and improved production.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"10"},"PeriodicalIF":1.7,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic parameters and correlations between growth traits and packed cell volume of N'Dama cattle in the Gambia.","authors":"Kebba Nyabally, Tobias O Okeno, Thomas Kainga Muasya","doi":"10.1007/s11250-024-04252-z","DOIUrl":"10.1007/s11250-024-04252-z","url":null,"abstract":"<p><p>The evolution of body weight under the natural trypanosome challenge and its association with disease tolerance to trypanosomosis is of utmost economic importance in cattle. This study estimated heritability for growth traits and packed cell volume (PCV) and their genetic correlations in the N'Dama cattle in the Gambia. A total of 2,488, 2,442, 1,471, 1,934, and 1,452 bodyweight records at 12 months (WT12), 16 months (WT16), 18 months (WT18), 24 months (WT24), 36 months (WT36) and 50 months (WT50) and 1,782, 1,800, 1,844, 1,608, and 1,459 records for PCV at 12 months (PCV12) 18 months (PCV18), 24 months (PCV24), 36 months (PCV36), and 50 months (PCV50), respectively, were analysed. Genetic parameters were estimated using univariate and multivariate animal models using the GIBBSF90 software. Least square means for WT12, WT18, WT24, WT36 and WT50 were 75.08 ± 0.37 kg, 95.58 ± 0.52, 123.80 ± 0.52 kg, 149.90 ± 0.73 kg and 190.37 ± 0.68 kg, respectively. The Least square means for PCV declined from 24.56 ± 0.18 at 12 months of age to 23.18 ± 0.19 at 50 months. Heritability estimates for growth ranged from 0.47 ± 0.05 at 12 months to 0.31 ± 0.06 at 50 months, while for PCV the estimates were 0.09 ± 0.01 to 0.15 ± 0.01. Genetic correlations between bodyweights were high and positive (0.73 ± 0.01 to 0.96 ± 0.01) while those between PCV traits were low to medium and positive (0.16 ± 0.04 to 0.56 ± 0.02). Genetic correlations between bodyweight and PCV range from -0.14 ± 0.02 to 0.59 ± 0.02. BW18 and PCV18 had high heritability estimates and as well as the highest genetic correlation and therefore could be used as selection criteria for body weight and trypanotolerance, respectively.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"7"},"PeriodicalIF":1.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vitro and in vivo analysis of rumen fermentation after supplementary niacin in high concentrated fed cattle.","authors":"Yuting Wei, Xiaowen Lei, Yufei Gao, Yu Guo, Xianghui Zhao, Yanjiao Li, Xiaolong Hu, Qinghua Qiu, Kehui Ouyang","doi":"10.1007/s11250-024-04260-z","DOIUrl":"10.1007/s11250-024-04260-z","url":null,"abstract":"<p><p>Rumen acidosis is a common nutritional metabolic disease in ruminants, and the developing of feed additives to prevent this disorder has great application prospect. This study was conducted to investigate the effects of dietary niacin supplementation with different concentrate to roughage ratio on rumen fermentation evaluated by simulated rumen fermentation in vitro and in vivo. The cattle fed with basal feed (dietary concentrate-to-forage ratio was 5: 5) and high concentrate feed (dietary concentrate-to-forage ratio was 8: 2) were defined as Control stage and HC stage, respectively. The HCN was defined as the cattle were fed with high concentrate feed with supplementary niacin (800 mg/kg). Three healthy male Jinjiang cattle were used as rumen fluid donors in the in vitro experiment and in vivo experiment, finally the fermentation parameters were determined. The results showed: dietary niacin retards the decline of pH induced by high concentrate diet via regulation of lactic acid produce in both in vitro and in vivo fermentation; dietary niacin inhibited the increased production of VFAs induced by high concentrate diet in in vitro fermentation; dietary niacin also affected the production of microbial proteins (MCP), gas and NH3-N. The present study provided baseline data to indicate that the niacin had the potential to use as a feed additive to prevent the occurrence of rumen acidosis in cattle.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"9"},"PeriodicalIF":1.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Replacing yellow maize with Illipe nut (Shorea stenoptera) improves growth performance and meat quality of porker pigs.","authors":"L L L Evelyn, N H Abu Daud, T C Loh, S C L Candyrine","doi":"10.1007/s11250-024-04264-9","DOIUrl":"10.1007/s11250-024-04264-9","url":null,"abstract":"<p><p>The effects of incorporating Illipe nut into the diet of pigs, in replacement of yellow maize, on their growth performance and meat quality was investigated in a 60 days feeding trial. Twenty-four male pigs were divided into two treatments and fed diets with 0% (T1) or 15% (T2) Illipe nut inclusion. Feed intake, live weight (LW) and backfat thickness (BFT) were taken and used to calculate average daily feed intake (ADFI), average daily gain (ADG), feed conversion ratio (FCR) and increase in backfat (IBF). At the end of the trial, final LW and BFT were measured. Pigs were then slaughtered and hot carcass weight (HCW), pH_45mins, pH_24hrs and dressing percentage (DP) were determined. Other analysis, including total moisture, thawing loss (TL), cooking loss (CL) and water holding capacity (WHC), were conducted on pork samples. Nutritional content and fatty acid (FA) composition of pork samples were analyzed, and nutritional indices were calculated. Improvements (P < 0.05) in final LW, ADG, final BFT, IBF and FCR were seen in pigs fed the T2 diet. Additionally, the T2 pork was superior (P < 0.05) in HCW, DP, pH_24hrs, TL, CL, total moisture and WHC than T1 pork. The FA composition of T2 pork was also improved, with a higher (P < 0.05) PUFA:SFA ratio, indicating lower SFA and higher PUFA levels than T1 pork. Along with this, T2 pork had lower (P < 0.05) index of atheroginicity (IA) and higher (health promoting index) HPI levels, indicating that the T2 pork is a healthier choice for consumption. These findings indicate that the inclusion of 15% Illipe nut into the diet of porker pigs improved their overall growth performance and meat quality.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"8"},"PeriodicalIF":1.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New manufacturing technology for rumen-protected fat using Apis mellifera beeswax: yield, characterization, and ruminant feeding.","authors":"Thiago Feitosa, Leilson Bezerra, Ana Célia Silva, Diego Oliveira, Selma Mazzetto, Mônica Cavalcanti, José Morais Pereira Filho, Ronaldo Oliveira, Juliana Oliveira, Mozart Fonseca, André Silva","doi":"10.1007/s11250-024-04261-y","DOIUrl":"10.1007/s11250-024-04261-y","url":null,"abstract":"<p><p>This study aimed to develop, characterize, and validate an encapsulant based on beeswax (BW) for rumen-protected fat (RPF) using the melting emulsification technique. Buriti oil (BO) was used as the core material, and BW was used as the encapsulating material at three different proportions of BW:BO (9:1, 4:1, and 2:1 g/g ratio respectively). RPF microspheres (BWBO9:1, BWBO4:1, and BWBO2:1) were characterized and tested in six 3-year-old castrated male Santa Ines sheep (average body weight of 56.5 ± 5.23 kg), fistulated and cannulated in the rumen, and randomly distributed in double Latin square design with 3 treatments × 3 periods. The microencapsulation efficiency increased with the addition of BO in the RPF ranging from 73 to 83%. There was a significant linear increase in the dry matter degradability (DMD) of BWBO2:1 (p < 0.05), stabilizing 12 h after the incubation of RPF in the rumen. BWBO4:1 showed a positive quadratic effect (p < 0.05) on DMD, peaking 6 h after incubation. BWBO9:1 showed the lowest DMD rate among RPF, maintaining DMD stable over the incubation time with no statistical difference over the 72 h (p > 0.05). BWBO9:1 promoted the lowest rumen pH compared to BWBO2:1 and BWBO4:1 (p < 0.05). The inclusion of BWBO2:1 in the diet provided the highest number of protozoa (p < 0.001) when compared to the sheep fed BWBO4:1 and BWBO9:1. There was no effect of incubation time on rumen pH and temperature. However, the protozoa count showed a quadratic effect with lower numbers of protozoa at 3 h, and higher amounts at 6 and 48 h. (p < 0.05). The use of RPF significantly altered the serum glucose (p < 0.001) with higher concentrations for BWBO2:1 and BWBO4:1 when compared to BWBO9:1. Lower blood triglyceride concentrations were observed in sheep fed BWBO2:1 (p < 0.001) when compared to BWBO4:1 and BWBO9:1. Beeswax matrix showed to be an efficient microencapsulant for BO using the melt-emulsification technique. The BWBO2:1 rumen-protected fat is best recommended for sheep diets because it increases energy density, rumen microorganisms and degradability without affecting rumen health.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"6"},"PeriodicalIF":1.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Blended phytogenics as an alternative to growth-promoting antibiotics in newly weaned piglets.","authors":"Manoela Karolina Ribeiro Santos, Ronaldo Seghetto, Lucélia Hauptli, Diovani Paiano, Aleksandro Schafer da Silva, Vilmar Benetti Filho, Glauber Wagner, Priscila de Oliveira Moraes","doi":"10.1007/s11250-024-04225-2","DOIUrl":"10.1007/s11250-024-04225-2","url":null,"abstract":"<p><p>The research aimed to evaluate the effects of a commercial blend of phytogenic compounds on the digestibility, antioxidant system, intestinal microbiota, and performance of weaned piglets. Two experiments compared three treatments (diets): control, zinc bacitracin (300 g/t) and blended phytogenic compounds (400 g/t). The first experiment analised of digestibility of the dry matter, organic matter, crude protein, crude energy and metabolizable energy, in addition to blood parameters and gut microbiota in 15 piglets commercial cross-bred, weaned at 28 days of age, castrated males, weighing 9.40 ± 0.622 kg housed in metabolic cages. In the second experiment, performance was evaluated on 108 piglets commercial cross-bred, weaned at 26 days of age, females and castrated males, weighing 7.52 ± 0.356 kg housed in collective stalls with 1,5 m² (3 animals/stall). A completely randomized design was used. The data were subjected to analysis of variance, and the means compared by the Tukey test at 5% significance. There were no differences in piglet digestibility and performance. There was a reduction in the levels of the enzyme superoxide dismutase, lipid peroxidation, and haptoglobulin, and an increase in the levels of the non-protein thiol compound and IgA for the animals receiving the phytogenic compound when compared with the piglets of the other treatments (p < 0.05). A tendency in diversity was observed in the intestinal microbiota of piglets receiving the phytogenic compound in the feed (p = 0.054). Due to its important role in the antioxidant system and intestinal microbiota, it is suggested that the blend of phytogenic additives can replace antibiotics growth promoters in the diet of newly weaned piglets.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 1","pages":"5"},"PeriodicalIF":1.7,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}