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Effects of inoculating feruloyl esterase-producing Lactiplantibacillus plantarum A1 on ensiling characteristics,in vitro ruminal fermentation and microbiota of alfalfa silage

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Journal of Animal Science and Biotechnology 2023年第4期14卷 1713-1729页

作者： Fuhou Li Samaila Usman Wenkang Huang Mengya Jia Zohreh Akhavan Kharazian Tao Ran Fadi Li Zitong Ding Xusheng Guo State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730000People’s Republic of China Probiotics and Biological Feed Research Centre Lanzhou UniversityLanzhou 730000People’s Republic of China State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems School of Life SciencesLanzhou UniversityNo.222 South Tianshui RoadLanzhou 730000People’s Republic of China

Background Ferulic acid esterase(FAE)-secreting Lactiplantibacillus plantarum A1(Lp A1)is a promising silage inoculant due to the FAE’s ability to alter the plant cell wall structure during ensiling,an action that is expected to improve forage ***,little is known regarding the impacts of Lp A1 on rumen *** research assessed the influences of Lp A1 in comparison to a widely adopted commercial inoculant Lp MTD/1 on alfalfa’s ensilage,in vitro rumen incubation and *** Samples of fresh and ensiled alfalfa treated with(either Lp A1 or Lp MTD/1)or without additives(as control;CON)and ensiled for 30,60 and 90 d were used for fermentation quality,in vitro digestibility and batch culture *** treated silage had lower(Psilage treated with Lp A1 had lower(Psilage treated with Lp MTD/1,silage treated with Lp A1 had significantly(P<0.01)improved ruminal gas production and digestibility,which were equivalent to those of fresh *** PCR analysis indicated that Lp A1 inoculation improved the relative abundances of rumen’s total bacteria,fungi,Ruminococcus albus and Ruminococcus flavefaciens,while the relative abundance of methanogens was reduced by Lp MTD/1 compared with *** component analysis of rumen bacterial 16S rRNA gene amplicons showed a clear distinction between CON and inoculated treatments without noticeable distinction between Lp A1 and Lp MTD/1 *** analysis revealed differences in the relative abundance of some bacteria in different taxa between Lp A1 and Lp MTD/1 *** treated with Lp A1 exhibited improved rumen fermentation characteristics due to the inoculant effects on the rumen micr

关键词： Digestibility Ferulic acid esterase In vitro fermentation Rumen microbial community silage

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Probiotic effect of ferulic acid esterase-producing Lactobacillus plantarum inoculated alfalfa silage on digestion,antioxidant,and immunity status of lactating dairy goats

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Animal Nutrition 2022年第4期11卷 38-47页

作者： Fuhou Li Baibing Zhang Yixin Zhang Xia Zhang Samaila Usman Zitong Ding Lizhuang Hao Xusheng Guo State Key Laboratory of Grassland Agro-ecosystems School of Life SciencesCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou730000China Probiotics and Biological Feed Research Centre Lanzhou UniversityLanzhou730000China Key Laboratory of Plateau Grazing Animal Nutrition and Feed Science of Qinghai Province The Academy of Animal and Veterinary SciencesState Key Laboratory of Plateau Ecology and AgricultureQinghai UniversityXining810016China

A feeding experiment was conducted to determine the effects of inoculating alfalfa silage with a ferulic acid esterase-producing inoculum on feed digestibility,rumen fermentation,antioxidant,and immunity status of lactating dairy *** dairy goats were distributed into 2 experimental groups consisting of control diet(Lp MTD/1,including Lactobacillus plantarum MTD/1 inoculated silage)against diet containing silage treated with ferulic acid esterase-producing *** A1(Lp A1).Alfalfa silage inoculated with a ferulic acid esterase-producing Lp A1 had better fermentation quality than the Lp MTD/*** application of Lp A1 improved silage antioxidant capacity as indicated by greater total antioxidant capacity(T-AOC),superoxide dismutase(SOD)and glutathion peroxidase(GSH-Px)activities in Lp A1 treated silage versus Lp MTD/1 *** with Lp MTD/1 treated group,inoculation of silage with Lp A1 increased apparent total tract digestibility of dietary dry matter,organic matter and crude protein,and ruminal concentrations of total volatile fatty acids,acetate,propionate and isobutyrate as *** results of current study also demonstrated improved antioxidant capacity and immune performance of dairy goats with Lp A1 *** Lp A1-treated silage increased dairy goats’serum antioxidase activity,such as T-AOC,SOD,GSH-Px and catalase,and the serum concentration of immunoglobulin A,while decreased tumor necrosis factor a,interleukin(IL)-2 and *** addition,compared with Lp MTD/1,diet containing alfalfa silage inoculated with Lp A1 endowed dairy goats’milk with greater fat and protein contents,improved dairy goat milk quality without affecting feed efficiency.

关键词： Ferulic acid esterase silage Digestibility Antioxidant Immunity

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Effects of sowing methods on nitrogen compounds and protease activities of whole‐crop wheat silage

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Grassland Research 2023年第1期2卷 46-55页

作者： Liuxing Xu Guojian Tang Dan Wu Jianguo Zhang College of Agronomy and Life Sciences Zhaotong UniversityZhaotongChina Department of Grassland Science South China Agricultural UniversityGuangzhouChina

Background:Whole‐crop wheat(Triticum aestivum)has high nutritive value,and it has become one of the main sources of roughage for ruminants in some countries or *** study investigates the effects of no tillage on nitrogen compounds and protease activities of whole‐crop wheat ***:Wheat was planted on the 9th day(NB9)and 5th day(NB5)before rice harvest and on the first day after rice *** before harvest involved no tillage and sowing after rice harvest involved either no tillage(NA1)or conventional tillage(CK).Results:Compared to CK,the crude protein content of NB9 and NB5 decreased by 16.4%and 9.58%,*** the delay of the sowing date,the contents of non‐protein nitrogen,rapidly degraded protein,and slowly degraded protein in whole‐plant wheat tended to *** to NA1 wheat silage,the NH_(3)‐N content of NB9 and NB5 silages decreased by 52.7%and 34.4%,*** acid protease activity of NA1 was significantly higher than that of other treatments(p<0.05).Conclusions:There was no significant difference in the degree of protein degradation between NA1 and CK *** the degree of protein degradation in early sowing was low,the degree of fermentation was also weak.

关键词： nitrogen distributions no‐tillage protein fractions silage whole‐crop wheat

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silage Feeding with Water Hyacinth in the Tropics: A Research Note

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Agricultural Sciences 2022年第2期13卷 282-289页

作者： Danny Agustin Flores Skye Blue Internet Port Coquitlam Canada

Water hyacinth has ecological significance in addition to its agricultural and energy uses. Lower quality silage is defined in this paper as requiring nitrogen supplementation and treatment to improve nutritive value (NV). Ensilage of water hyacinth as a test case centers largely around the process to optimize protein nitrogen retention in silage-based regimens. A previous hypothesis proposed earlier by the author of that of functional amino acid ratios [tyrosine (TYR): large neutral amino acids (LNAA), tyrosine (TYR): phenylalanine (PHE)] were subsequently found to be counter to what the given schemata predicts. And subsequently with another study there was no corroborative evidence for it to support the espoused hypothesis using the same schemata. The role of N status is still the most viable option among factors from studies continuing how amino acids like histidine (HIS) and arginine (ARG) and their growth-related endocrine functions play a role. There are other schemas illustrating non-homeostatic type regulation with protein intake. To focus on molecular-level mechanisms to ruminal protein digestion it is becoming clear what factors in feed and microbial cell fermentation contribute to optimizing microbial cell protein (MCP) synthesis from ATP with organic matter (OM) digestibility and preformed amino acids (PFAA) from peptides and free amino acids in addition to non-protein nitrogen (NPN), the former more efficiently assimilated in MCP than NPN in the rumen. Accordingly, it has been recommended that soluble proteins fed to dairy cows not exceed microbial requirements along with high dietary escape protein fed with a sufficient amino acid profile to meet dairy production.

关键词： Water Hyacinth Lower Quality silage Functional Amino Acids Nitrogen Status Nutritive Value

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The effect of lactic acid bacteria inoculums on in vitro rumen fermentation, methane production, ruminal cellulolytic bacteria populations and cellulase activities of corn stover silage

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Journal of Integrative Agriculture 2020年第3期19卷 838-847页

作者： GUO Gang SHEN Chen LIU Qiang ZHANG Shuan-lin SHAO Tao WANG Cong WANG Yongxin XU Qing-fang HUO Wen-jie College of Animal Sciences and Veterinary Medicines Shanxi Agricultural UniversityTaigu 030801P.R.China Institute of Ensiling and Processing of Grass Nanjing Agricultural UniversityNanjing 210095P.R.China

The objective of this study was to investigate the effect of lactic acid bacteria(LAB) inoculums on fermentation quality and in vitro digestibility of corn stover *** stover was ensiled without(control) or with Lactobacillus plantarum(LP),Enterococcus faecalis(EF),and Enterococcus mundtii(EM) for 45 *** fermentation characteristics were assessed,and subsequent in vitro dry matter digestibility(DM-D),neutral detergent fiber digestibility(NDF-D),volatile fatty acids(VFA),methane(CH4) production,cellulolytic bacteria proportions and their activities per corn stover silage were also *** was no significant difference(P>0.05) among the silage pH,lactic acid,crude protein(CP),water soluble carbohydrates(WSC) and lignocelluloses contents of different *** relative proportions of Ruminococcus flavefaciens and Fibrobacter succinogenes,carboxymethyl-ocellulose and β-glycosidase activities,DM-D,NDF-D,and VFA production of in vitro incubation was higher(Psilages inoculated with LP and EF than those of the control *** inoculated with LP showed the lowest(Psilage were efficiently improved by inoculated with ***.

关键词： corn stover in vitro digestibility lactic acid bacteria silage

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Effects of formic acid and corn flour supplementation of banana pseudostem silages on nutritional quality of silage,growth,digestion,rumen fermentation and cellulolytic bacterial community of Nubian black goats

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Journal of Integrative Agriculture 2021年第8期20卷 2214-2226页

作者： Zhang Hao Cheng Xuan Mabrouk ELSABAGH Lin Bo Wang Hong-rong Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition College of Animal Science and TechnologyYangzhou UniversityYangzhou 225009P.R.China Joint International Research Laboratory of Agriculture and Agri-Product Safety Ministry of Education/Yangzhou UniversityYangzhou 225009P.R.China Department of Animal Production and Technologies Faculty of Agricultural Sciences and TechnologiesNiğdeÖmer Halisdemir UniversityNiğde 51240Turkey Department of Nutrition and Clinical Nutrition Faculty of Veterinary MedicineKafrelsheikh UniversityKafr El-Sheikh 33516Egypt College of Animal Science Guangxi UniversityNanning 530004P.R.China

The objective of this study was to evaluate the effects of adding formic acid and corn flour supplementation to banana pseudostem silages on the nutritional quality of these silages,growth,digestion,rumen fermentation and cellulolytic bacterial community of Nubian black goats fed these *** pseudostem silage was prepared either conventionally without any additives(CON)or mixed with 0.6% formic acid(F),10% corn flour(C),or both(F+C).Four experimental diets containing 40% of the corresponding silages were designed with roughage to concentrate ratio of 50:50(dry matter(DM)basis).A total of 48 Nubian black castrated goats(body weight(BW),(22.64±1.82)kg;4-mon-old)were randomized into one of the four treatment groups with 12 replicates of one castrated goat per replicate for each treatment in a completely randomized *** group was fed on one of the four experimental diets for 40 days.A factorial arrangement of treatments of 2(formic acid levels:0 and 0.6%)×2(corn flour:0 and 10%)was *** acid supplementation increased(P0.05)for any of the other indices except for the apparent digestibility of non-fibrous carbohydrate(NFC)(Psilages improved the nutritional quality of these silages and enhanced the growth performance of Nub

关键词： banana pseudostem silage goat nutrient digestion rumen fermentation ruminal cellulolytic bacteria

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Study on round rice straw bale wrapping silage technology and facilities

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International Journal of Agricultural and Biological Engineering 2018年第4期11卷 88-95页

作者： Liqiao Li Defu Wang Xing Yang College of Engineering Northeast Agricultural UniversityHarbin 150030China Key Laboratory of Swine Facilities Engineering Ministry of AgricultureHarbin 150030China

Specific to problems of the existing round bale wrapping machine in China,such as small application scope and failing to satisfy the wrapping demands of round bales of different specifications,a tumbler-type round bale wrapping machine based on wrapping silage with stretch film was *** theoretical analysis and preliminary experiments of the corresponding wrapping process,revolving speed of tumbler,speed ratio between tumbler and carrier rollers,and pre-load force of stretch film were determined as experimental factors,while wrapping time and consumption of stretch film per unit mass of round bale were determined as evaluation ***,quadratic regression orthogonal rotational combination experimental design was adopted to carry out the wrapping *** regression models were set up,and influencing rules of experimental factors on evaluation indexes were also *** optimal parameter combination scheme was revolving speed of tumbler of 31-32 r/min,speed ratio between tumbler and carrier rollers of 2.6,and pre-load force of stretch film of 20-22 *** such a circumstance,the corresponding wrapping time required was 37.7-38.9 s and consumption of stretch film per unit mass of round bale was 3.21-3.46 kg/*** predicted values and the measured values of evaluation indexes basically coincided with each other and the relative error fell below 5%,which indicated that both the optimized regression models acquired through the wrapping experiment and the relevant parameter optimization results were *** guarantee the quality of rice straw silage,the round bale should be wrapped by no less than five layers of stretch films through the utilization of the tumbler-type round bale wrapping *** study results could be used as references for research and development of the round bale wrapping machine.

关键词： round bale silage wrapping machine tumbler-type analysis experiment

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Nutritive Value and silage Fermentation Characteristics of Forage Sorghum (Sorghum bicolor L.) Genotypes and Lablab (Lablab purpureus L.) Mixture

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American Journal of Plant Sciences 2022年第6期13卷 723-733页

作者： M. Rangappa Umesh Isaac Lepcha Sultan Begna Prasanna Gowda Sangu Angadi Agriculture Science Center Clovis New Mexico State University Las Cruces NM USA

This study was conducted to assess the fermentation and nutritive value of sorghum silage mixed with lablab at different proportions. The treatments consisted of a combination of two sorghum genotypes viz. “Brown midrib” and “Brachytic dwarf” genotype of lablab and six population proportions viz. 150:0, 112.5:37.5, 75:75, 37.5:112.5, 0:150 and 150:150 × 103 plants·ha-1 sorghum genotypes and lablab, respectively totalling to 12 numbers. Sorghum genotypes and lablab were grown as monocrop and in intercropping systems in the same field. Forage sorghum was harvested at the late-dough stage and lablab at 20% bloom. They were cut and chopped together and ensiled. Lablab in the silage mixture was its actual contribution to the total forage mixture. For each mixture, a 1-L glass jar (mini-silo) was filled with 500 g of fresh material and replicated four times. Forage in mini silos was fermented for 60 days at room temperature (25°C). Pre and post-silage dry samples were analysed for nutritive value and ensiled samples were analysed for fermentation characteristics. There was no significant difference in nutritive value between sorghum genotypes. The greatest impact of mixing lablab with sorghum genotypes was on crude protein (CP) and acid detergent fiber (ADF), but not on neutral detergent fiber (NDF). Across treatments, CP, ADF pH, lactic, and acetic acid concentrations increased as the proportion of LB was increased. The results indicated that lablab as an intercrop with sorghum for greater DM yield and forage and silage quality than respective monocrops.

关键词： Brown Midrib Brachytic Dwarf Ensilage Forage Quality Intercropping Lablab silage

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Browse silage as potential feed for captive wild ungulates in southern Africa:A review

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Animal Nutrition 2018年第1期4卷 1-10页

作者： Khanyisile R.Mbatha Archibold G.Bakare University of South Africa Department of Agriculture and Animal Health Fiji National University College of AgricultureFisheries and Forestry

The objective of the review was to assess the potential of indigenous browse trees as sustainable feed supplement in the form of silage for captive wild *** attempts to use silage as feed in zoos in temperate regions have been conducted with *** on silage from the indigenous browse trees preferred by wild ungulates in southern Africa is *** use of silage from the browse trees is of interest as it has potential to reduce or replace expensive feed sources(pellets,fruits and farm produce) currently offered in southern African zoos,game farms and reserves,especially during the colddry *** leaf biomass from the indigenous browse trees can be produced for silage *** nutrient content and minerals from indigenous browsable trees are highly *** browse trees have low water-soluble carbohydrates(WSC) that render them undesirable for *** such as wilting browse leaves,mixing cereal crops with browse leaves,and use of additives such as urea and enzymes have been studied extensively to increase WSC of silage from the indigenous browse ***-nutritional factors from the indigenous browse preferred by the wild ungulates have also been studied *** browse silages are a potential feed resource for the captive wild *** the browse trees are used to make silage,they are likely to improve performance of wild ungulates in captivity,especially during the cold-dry season when browse is *** is needed to assess the feasibility of sustainable production and the effective use of silage from indigenous browse trees in southern *** intake and nutrient utilisation and reducing the concentrations of anti-nutritional compounds in silage from the indigenous browse trees of southern Africa should be the focus for animal nutrition research that need further investigation.

关键词： Anti-nutritional factors Indigenous browsable trees Nutritive value silage Ungulates

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Effect of different levels of corn steep liquor addition on fermentation characteristics and aerobic stability of fresh rice straw silage

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Animal Nutrition 2016年第4期2卷 345-350页

作者： Xinxin Li Wenbin Xu Jinshan Yang Hongbo Zhao Hangshu Xin Yonggen Zhang College of Animal Science and Technology Northeast Agricultural University Institute of New Rural Development Northeast Agricultural University

The object of this study was to determine the proper mixing ratio of fresh rice straw to corn steep liquor(CSL) to obtain a high protein content silage feed. The following experimental silages were generated: the control(C1), composed of fresh rice straw without CSL additive, mixed with CSL in the ratios of 4:1(C4),3:1(C3) and 2:1(C2). Lactic acid bacteria(LAB) inoculant was applied at the rate of 50 mL/kg(fresh basis)of forage to achieve a final application rate of 1 x 10~6 cfu/g of fresh matter(FM). Duplicate silos for each treatment were opened after 0,3, 7,10,20,30,45 and 60 d for microbiological and chemical analysis. The results showed that the addition of CSL significantly increased crude protein(CP) contents, and decreased neutral detergent fiber(NDF) and acid detergent fiber(ADF) contents of treatments after 60 d of ensiling(P silage. However, a large proportion of CSL(C3) had a negative impact on the aerobic stability of fresh rice straw.

关键词： Corn steep liquor Fresh rice straw Lactic acid bacteria Mixing ratio silage

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