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The current research on the manganese (Mn) transfer from soil to plant as well as to grazing Kajli rams in the form of sampling periods was carried out under semi-arid environmental conditions. Forage, soil and blood plasma samples were collected during 4 months of the year after a 1-month interval, and Mn concentrations were assessed after wet digestion using an atomic absorption spectrophotometer. Results showed that Mn concentration in soil ranged from 48.28 to 59.44 mg/kg, with incoherent augment and decline across sampling periods, and effect of sampling period on soil Mn was also found to be significant (P < 0.05). The mean levels of Mn in soil appeared higher than the critical value and sufficient for forage crop requirement. The Mn concentration in forage ranged between 24.8 and 37.2 mg/kg, resulting deficient based on the requirement allowance of Mn for livestock grazing animals, therein with almost unchanged forage Mn concentration. The Mn values in blood plasma of rams varied from 0.066 to 0.089 mg/l, with a consistent increase based on sampling period, and the effect of sampling periods on plasma Mn was found to be highly significant (P < 0.05). The Mn levels in ram blood plasma were lesser than the normal level suggesting reasonable need for supplementation. Our study revealed the role of Mn availability in soil and plant species amassing capability on the transport of Mn in the soil-plant-animal system. Results indicated a much higher accumulation rate at the sampling characterized by vegetation dominated by legumes in comparison to grasses, crop residues and mixed pasture and a pronounced seasonal supply of Mn at the four sampling period of grazing land of diverse botanical composition.
The current research on the manganese (Mn) transfer from soil to plant as well as to grazing Kajli rams in the form of sampling periods was carried out under semi-arid environmental conditions. Forage, soil and blood plasma samples were collected during 4 months of the year after a 1-month interval, and Mn concentrations were assessed after wet digestion using an atomic absorption spectrophotometer. Results showed that Mn concentration in soil ranged from 48.28 to 59.44 mg/kg, with incoherent augment and decline across sampling periods, and effect of sampling period on soil Mn was also found to be significant (P < 0.05). The mean levels of Mn in soil appeared higher than the critical value and sufficient for forage crop requirement. The Mn concentration in forage ranged between 24.8 and 37.2 mg/kg, resulting deficient based on the requirement allowance of Mn for livestock grazing animals, therein with almost unchanged forage Mn concentration. The Mn values in blood plasma of rams varied from 0.066 to 0.089 mg/l, with a consistent increase based on sampling period, and the effect of sampling periods on plasma Mn was found to be highly significant (P < 0.05). The Mn levels in ram blood plasma were lesser than the normal level suggesting reasonable need for supplementation. Our study revealed the role of Mn availability in soil and plant species amassing capability on the transport of Mn in the soil-plant-animal system. Results indicated a much higher accumulation rate at the sampling characterized by vegetation dominated by legumes in comparison to grasses, crop residues and mixed pasture and a pronounced seasonal supply of Mn at the four sampling period of grazing land of diverse botanical composition.
Xaiigaiiiiiangel beini Wiederkiuer 3. AIliffeiZiiwg JIanganmangclbcdirlgte Fort.pflnnzungs-, Skclctt-untl Rcrvcnst.6rungcn bci wcibliclicn \\'icdcrkiiucrn und ilircn Xaclikoninicn Eiiilcituiig 1111 Gcgensstz ZII Jlaus, Rattc, JZccrscli~vcii~chc~iJ Kaninclicn 1111cl Huhn psisticrcn iibcr die Un-niangelbcdingtcn BusfallcrsclicinuiIgeii bcini V'iederkiucr n w wcnigc cspcrinicntcllc Untersucliungen. In tlicscn Arbcitcn win1 liiitgctcilt, clan bci ungcniigcndcr JIn-Vcrsorgung dic Briinst bci FIrscn iintl Ziegcn rerspitct eintritt und die Riilie cincn sclilcchtcren Erstbesaniungscrfol~ aufwcisci; [ I , 11, 21, 23, 25, 31, 43, 41,1G,4iJ5G,S7,5S]. EiiicIdciitifiLicrung tlcr JIn-mangelbcdingt en Vcriindcru~igen war erst durch Untersucl~ungcn an Zicgeii nls JIodcllticrc anstclle der liiilie und den1 Eiiisatz Iialbs~iitlictisclier Rationcii mit. gcringcni JTn-G~hnlt m6glich [4]. Dicsc Persuche siiid mit synthctischc~i Rationcn untl < 2 ppni JIn fortgcsctzt worden, wobci die Vcrsuclisticrc in Kunststoff buchtcn init Zellstoffeinstrcu, die die Frenidaufnah~ne \-on JIn nahezu ausschlieRcn, untcrgebracht wirden. Sic crm6glichcn cinc wcitcrc Priizisicrung dcr JIn-mangclbedingtcii Fortpflaiizungs-, Sliclett -und Xcrvcnsch~idcn. Die Untcrsnchungcn wurden tlurcli langfristigc Erlicbiingcn an \vcibliclicn Rindern und ilircn Nnclikomnicn crgiinzt . 2. JIatcrinl untl JIctlioden Die Untersuchungcrr crfolgten iiber einen Zeitrauni von 39 Jlonsten an 1G Kontrolf-und 20 JIn-Jlangelziegcn niit insgessnit 28 bzw. 28 Vcrpaarungen ini Lade dcr drei Versuchsjahrc. Das Fritter der 3In-JInngelziegeii entliielt iin ersten Persucllsjehr 5,s und in den folgciidcii Jahren 1.0 ppm >In. Die Kontrollziegen bckainen > 90 ppin 1111 iiiit den: Futter. Die \'ersucliskiihc standen in zwci nebeneinonderliegcndeii Stdllanlageii n i t 90 Tieren (Kontrollration > 100 ppni A h ) bzw. 109 Tieren (Jln-J1angeldiS.t niit 43 ppiii Nn). Die Erliebungcn erstrcckteii sicli bei den Iiiilicn i~u d ilircii Snclikoninien voni 1. 1. lSGG bis znni 31. 12-MGB, die Un-Bcifiitterurrg a n die Kontrollkiilio begann an1 1. 10. 1SGB. Einzelheiten der Versiichsanlage und -auswcrtung wurdcn von HESSIG u. a. [24] bcschriebcn.Downloaded by [University of Florida] at 15:49 13 June 2016 10.5. Lebeiistng verstorbeiic LHiiimer, [I:', , ] -Die O w l n t ion tlcr Zicgcn ist ivahrsclieinlicli normal, tla bci Brunstcrkcnnnng nuch die Jhl-JIangdziegen oline Schwicrigkeiten trlclitig wurden (Tab. 1). Die Bctlcutung tlcs >In fiir die Fortpflanziing zeigt. sicli aucli iiii Abortantcil dcr JIn-Jlnngclziegen. I m JIittcl dcr drei Persuclisjalire rcrlnmintcii 3 G ' : ' , , clcr JI1i-JIallgelziegcii. Die Differcnz zii den Iiontrollzicgcii ohno lrcrlaminungcii ist signifikant. Bci eiiicni Ah-Angcbot \-on 5,5 ppin im erst en Pcrsuclisjalir betrug Downloaded by [University of Florida] at 15:49 13 June 2016 AIKE, 31.: Dcr 1Leiigcn-und Spurcnclciiieiitgelialt dcs Rinderliaares als Inclikator dcr Knlziuni-, Nagncsiuni-, Pliosplior-, Knlium-, Nntriuni-, Eiscn-, Zink-, AIangan-, Kupfcr-, 3IolybdIn-und ICobaltv...
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