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Replacing Alfalfa with Paper Mulberry in Total Mixed Ration Silages: Effects on Ensiling Characteristics, Protein Degradation, and In Vitro Digestibility

Animals (Basel), 2021-04, Vol.11 (5), p.1273 [Peer Reviewed Journal]

2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2021 by the authors. 2021 ;ISSN: 2076-2615 ;EISSN: 2076-2615 ;DOI: 10.3390/ani11051273 ;PMID: 33925198

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  • Title:
    Replacing Alfalfa with Paper Mulberry in Total Mixed Ration Silages: Effects on Ensiling Characteristics, Protein Degradation, and In Vitro Digestibility
  • Author: Li, Rongrong ; Zheng, Mingli ; Jiang, Di ; Tian, Pengjiao ; Zheng, Menghu ; Xu, Chuncheng
  • Subjects: Alfalfa ; Amino acids ; Ammonia ; Biodegradation ; Broussonetia papyrifera ; Butyric acid ; Chemical composition ; Corn ; Degradation ; Diet ; Digestibility ; Dry matter ; Feeds ; Fermentation ; Grain ; Grasses ; in vitro digestibility ; Lactic acid ; Medicago sativa ; Microorganisms ; Nitrogen ; paper mulberry ; Peptides ; Phenols ; Protein composition ; protein quality ; Proteins ; Silage ; Soybeans ; Substitutes ; total mixed ration silage ; Total mixed rations ; Wheat ; Wheat bran
  • Is Part Of: Animals (Basel), 2021-04, Vol.11 (5), p.1273
  • Description: To develop an alternative high-protein forage resource to alleviate ruminant feed shortages, we investigated the effects of replacing alfalfa ( L.) with different ratios of paper mulberry ( L., RY) on fermentation quality, protein degradation, and in vitro digestibility of total mixed ration (TMR) silage. The TMR were made with alfalfa and RY mixtures (36.0%), maize meal (35.0%), oat grass (10.0%), soybean meal (7.5%), brewers' grain (5.0%), wheat bran (5.0%), premix (1.0%), and salt (0.5%) on a dry matter basis, respectively. The alfalfa and RY mixtures were made in the following ratios of dry matter: 36:0 (RY0), 27:9 (RY9), 18:18 (RY18), 9:27 (RY27), and 0:36 (RY36). After ensiling for 7, 14, 28, and 56 days, fermentation quality, protein degradation, and microbial counts were examined, and chemical composition and in vitro digestibility were analyzed after 56 days of ensiling. All TMR silages, irrespective of the substitution level of RY, were well preserved with low pH and ammonia nitrogen content, high lactic acid content, and undetectable butyric acid. After ensiling, the condensed tannin content for RY18 silages was higher than the control, but non-protein nitrogen, peptide nitrogen, and free amino acid nitrogen contents was lower, while the fraction B1 (buffer-soluble protein) was not different among all the silages. Dry matter and crude protein digestibility for RY27 and RY36 silages was lower than the control, but there was no difference between control and RY18 silages. This study suggested that ensiling RY with alfalfa inhibited true protein degradation, but decreased in vitro dry matter and crude protein digestibility of TMR silages, and that 18:18 is the optimal ratio.
  • Publisher: Switzerland: MDPI AG
  • Language: English
  • Identifier: ISSN: 2076-2615
    EISSN: 2076-2615
    DOI: 10.3390/ani11051273
    PMID: 33925198
  • Source: AUTh Library subscriptions: ProQuest Central
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    ROAD: Directory of Open Access Scholarly Resources
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