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The effect of ensiled paulownia leaves in a high-forage diet on ruminal fermentation,methane production,fatty acid composition,and milk production performance of dairy cows

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Journal of Animal Science and Biotechnology 2023年第1期14卷 339-357页

作者： Haihao Huang dorota lechniak Malgorzata Szumacher‑Strabel Amlan Kumar Patra Martyna Kozłowska Pawel Kolodziejski Min Gao Sylwester Ślusarczyk Daniel Petrič Adam Cieslak Department of Animal Nutrition PoznańUniversity of Life SciencesWołyńska 3360‑637 PoznańPoland. Department of Genetics and Animal Breeding PoznańUniversity of Life SciencesWolynska 33Poznań60‑637Poland. Department of Animal Nutrition West Bengal University of Animal and Fishery Sciences37 K.B.SaraniKolkataIndia. Institute of Genetics and Animal Biotechnology Polish Academy of SciencesPostępu 36A05‑552MagdalenkaWarsawPoland. Department of Animal Physiology Biochemistry and BiostructurePoznan University of Life SciencesWolynska 35Poznan 60‑637Poland. Department of Pharmaceutical Biology and Botanic Garden of Medicinal Plants Wrocław Medical UniversityWrocław 50‑556Poland. Institute of Animal Physiology Centre of Biosciences of Slovak Academy of SciencesŠoltesovej 4‑6040‑01 KošiceSlovak Republic. Department of Animal Nutrition Faculty of Veterinary Medicine and Animal SciencePoznańUniversity of Life SciencesPoznań60‑637Poland.

Background:The use of industrial by-products rich in bioactive compounds as animal feeds can reduce greenhouse gas *** leaves silage(PLS)was supplemented to dairy cows'diet and evaluated in vitro(Exp.1;Rusitec)and in vivo(Exp.2,cannulated lactating dairy cows and Exp.3,non-cannulated lactating dairy cows).The study investigated the PLS effect on ruminal fermentation,microbial populations,methane production and concentration,dry matter intake(DMI),and fatty acid(FA)proportions in ruminal fluid and ***:Several variables of the ruminal fluid were changed in response to the inclusion of *** Exp.1,the p H increased linearly and quadratically,whereas ammonia and total volatile fatty acid(VFA)concentrations increased linearly and cubically.A linear,quadratic,and cubical decrease in methane concentration was observed with increasing dose of the ***.2 revealed an increase in ruminal p H and ammonia concentrations,but no changes in total VFA *** of PLS increased ruminal propionate(at 3 h and 6 h after feeding),isovalerate,and valerate *** of PLS also affected several populations of the analyzed *** abundances of protozoa and bacteria were increased,whereas the abundance of archaea were decreased by *** production decreased by 11%and 14%in PLS-fed cows compared to the control in Exp.2 and 3,***.3 revealed a reduction in the milk protein and lactose yield in the PLS-fed cows,but no effect on DMI and energy corrected milk ***,the PLS diet affected the ruminal biohydrogenation process with an increased proportions of C18:3 cis-9 cis-12 cis-15,conjugated linoleic acid,C18:1 trans-11 FA,polyunsaturated fatty acids(PUFA),and reduced n6/n3 ratio and saturated fatty acids(SFA)proportion in *** relative transcript abundances of the 5 of 6 analyzed genes regulating FA metabolism ***:The dietary PLS replacing the alfalfa silage at 60 g/kg diet can red

关键词： Dairy cow Fatty acid composition in milk Methane emission Paulownia leaves

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Dietary Coleus amboinicus Lour. decreases ruminal methanogenesis and biohydrogenation, and improves meat quality and fatty acid composition in longissimus thoracis muscle of lambs

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Journal of Animal Science and Biotechnology 2022年第3期13卷 816-834页

作者： Yulianri Rizki Yanza Malgorzata Szumacher-Strabel dorota lechniak Sylwester Ślusarczyk Pawel Kolodziejski Amlan Kumar Patra Zora Váradyová Dariusz Lisiak Mina Vazirigohar Adam Cieslak Department of Animal Nutrition Faculty of Veterinary Medicine and Animal SciencePoznań University of Life Sciences60-637 PoznańPoland Department of Biology Education Universitas Islam RiauJl.Kaharuddin Nasution 113Pekanbaru 28284Indonesia Department of Genetics and Animal Breeding Poznań University of Life SciencesWołyńska 3360-637 PoznańPoland Department of Pharmaceutical Biology and Botany Wrocław Medical University50-556 WrocławPoland Department of Animal Physiology and Biochemistry Faculty of Veterinary Medicine and Animal SciencePoznań University of Life Sciences60-637 PoznańPoland Department of Animal Nutrition West Bengal University of Animal and Fishery SciencesBelgachiaK.B.Sarani 37Kolkata 700037India Institute of Animal Physiology Centre of Biosciences of Slovak Academy of SciencesŠoltésovej 4-604001 KošiceSlovak Republic Department of Meat and Fat Technology Wacław Dąbrowski Institute of Agricultural and Food BiotechnologyRakowiecka 3602-532 WarszawaPoland Zist Dam Group University Incubator CenterUniversity of ZanjanZanjan 45371-38791Iran

Background:Methane production and fatty acids(FA)biohydrogenation in the rumen are two main constraints in ruminant production causing environmental burden and reducing food product *** functions can be modulated by the biologically active compounds(BACs)of plant origins as shown in several studies *** in methane emission,modulation of FA composition with positive impact on the ruminant *** amboinicus Lour.(CAL)contains high concentration of polyphenols that may potentially reduce methane production and modulate ruminal biohydrogenation of unsaturated *** study aimed to investigate the effect of BAC of Coleus amboinicus Lour.(CAL)fed to growing lambs on ruminal methane production,biohydrogenation of unsaturated FA and meat *** this study,the in vitro experiment aiming at determining the most effective CAL dose for in vivo experiments was followed by two in vivo experiments in rumen-cannulated rams and growing *** 1(RUSITEC)comprised of control and three experimental diets differing in CAL content(10%,15%,and 20%of the total diet).The two in vivo experiments were conducted on six growing,rumen-cannulated lambs(Exp.2)and 16 growing lambs(Exp.3).Animals were assigned into the control(CON)and experimental(20%of CAL)*** parameters were examined in vitro(pH,ammonia and VFA concentrations,protozoa,methanogens and select bacteria populations)and in vivo(methane production,digestibility,ruminal microorganism populations,meat quality,fatty acids profiles in rumen fluid and meat,transcript expression of 5 genes in meat).Results:CAL lowered in vitro methane production by 51%.In the in vivo Exp.3,CAL decreased methane production by 20%compared with the CON group,which corresponded to reduction of total methanogen counts by up to 28%in all experiments,notably *** Exp.3,CAL increased or tended to increase populations of some rumen bacteria(Ruminococcus albus,Megasphaera elsdenii,Butyrivibr

关键词： Bioactive compounds Biohydrogenation Meat characteristics Methane Microorganism Ruminal fermentation Sheep

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