Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage Utilization
Digestion of cell wall fractions of forage in the rumen is incomplete due to the complex links which limit their degradation. It is therefore necessary to find options to optimize the use of forages in ruminant production systems. One alternative is to use exogenous enzymes. Exogenous fibrolytic enz...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/247437 |
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| author | Germán D. Mendoza Octavio Loera-Corral Fernando X. Plata-Pérez Pedro A. Hernández-García Mónica Ramírez-Mella |
| author_facet | Germán D. Mendoza Octavio Loera-Corral Fernando X. Plata-Pérez Pedro A. Hernández-García Mónica Ramírez-Mella |
| author_sort | Germán D. Mendoza |
| collection | DOAJ |
| description | Digestion of cell wall fractions of forage in the rumen is incomplete due to the complex links which limit their degradation. It is therefore necessary to find options to optimize the use of forages in ruminant production systems. One alternative is to use exogenous enzymes. Exogenous fibrolytic enzymes are of fungal or bacterial origin and increase nutrient availability from the cell wall, which consists of three fractions in different proportions depending on the species of forage: digestible, potentially digestible, and indigestible. The response to addition of exogenous enzymes varies with the type of forage; many researchers infer that there are enzyme-forage interactions but fail to explain the biological mechanism. We hypothesize that the response is related to the proportion of the potentially digestible fraction. The exogenous enzyme activity depends on several factors but if the general conditions for enzyme action are available, the potentially digestible fraction may determine the magnitude of the response. Results of experiments with exogenous fibrolytic enzymes in domestic ruminants are inconsistent. This, coupled with their high cost, has made their use unattractive to farmers. Development of cheaper products exploring other microorganisms with fibrolytic activity, such as Fomes fomentarius or Cellulomonas flavigena, is required. |
| format | Article |
| id | doaj-art-ecf6f51dc81149e2b09d425535beff01 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-ecf6f51dc81149e2b09d425535beff012025-02-03T07:24:39ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/247437247437Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage UtilizationGermán D. Mendoza0Octavio Loera-Corral1Fernando X. Plata-Pérez2Pedro A. Hernández-García3Mónica Ramírez-Mella4Unidad Xochimilco, Universidad Autónoma Metropolitana, Calzada del Hueso No. 1100, Colonia Villa Quietud, 04960 Delegación Coyoacán, DF, MexicoUnidad Iztapalapa, Universidad Autónoma Metropolitana, Avenida San Rafael Atlixco No. 186, Colonia Vicentina, 09340 Delegación Iztapalapa, DF, MexicoUnidad Xochimilco, Universidad Autónoma Metropolitana, Calzada del Hueso No. 1100, Colonia Villa Quietud, 04960 Delegación Coyoacán, DF, MexicoCentro Universitario UAEM Amecameca, Universidad Autónoma del Estado de México, Carretera Amecameca, Ayapango km. 2.5, 56900 Amecameca de Juárez, MEX, MexicoUnidad Xochimilco, Universidad Autónoma Metropolitana, Calzada del Hueso No. 1100, Colonia Villa Quietud, 04960 Delegación Coyoacán, DF, MexicoDigestion of cell wall fractions of forage in the rumen is incomplete due to the complex links which limit their degradation. It is therefore necessary to find options to optimize the use of forages in ruminant production systems. One alternative is to use exogenous enzymes. Exogenous fibrolytic enzymes are of fungal or bacterial origin and increase nutrient availability from the cell wall, which consists of three fractions in different proportions depending on the species of forage: digestible, potentially digestible, and indigestible. The response to addition of exogenous enzymes varies with the type of forage; many researchers infer that there are enzyme-forage interactions but fail to explain the biological mechanism. We hypothesize that the response is related to the proportion of the potentially digestible fraction. The exogenous enzyme activity depends on several factors but if the general conditions for enzyme action are available, the potentially digestible fraction may determine the magnitude of the response. Results of experiments with exogenous fibrolytic enzymes in domestic ruminants are inconsistent. This, coupled with their high cost, has made their use unattractive to farmers. Development of cheaper products exploring other microorganisms with fibrolytic activity, such as Fomes fomentarius or Cellulomonas flavigena, is required.http://dx.doi.org/10.1155/2014/247437 |
| spellingShingle | Germán D. Mendoza Octavio Loera-Corral Fernando X. Plata-Pérez Pedro A. Hernández-García Mónica Ramírez-Mella Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage Utilization The Scientific World Journal |
| title | Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage Utilization |
| title_full | Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage Utilization |
| title_fullStr | Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage Utilization |
| title_full_unstemmed | Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage Utilization |
| title_short | Considerations on the Use of Exogenous Fibrolytic Enzymes to Improve Forage Utilization |
| title_sort | considerations on the use of exogenous fibrolytic enzymes to improve forage utilization |
| url | http://dx.doi.org/10.1155/2014/247437 |
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