Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cows
This study aimed to evaluate the associative effect of monensin and tannins on intake, feeding behaviour, digestibility, rumen kinetics, microbial protein synthesis and nitrogen balance. In a 2 × 4 factorial arrangement, 8 rumen cannulated Nellore cows were distributed in 2 contemporary 4 × 4 Latin...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-12-01
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| Series: | Italian Journal of Animal Science |
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| Online Access: | http://dx.doi.org/10.1080/1828051X.2020.1729667 |
| _version_ | 1818572149550481408 |
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| author | Ramos Jorge Tseu Flavio Perna Junior Roberta Ferreira Carvalho Guilherme Acácio Sene Cristiane Barbosa Tropaldi Alice Helena Peres Paulo Henrique Mazza Rodrigues |
| author_facet | Ramos Jorge Tseu Flavio Perna Junior Roberta Ferreira Carvalho Guilherme Acácio Sene Cristiane Barbosa Tropaldi Alice Helena Peres Paulo Henrique Mazza Rodrigues |
| author_sort | Ramos Jorge Tseu |
| collection | DOAJ |
| description | This study aimed to evaluate the associative effect of monensin and tannins on intake, feeding behaviour, digestibility, rumen kinetics, microbial protein synthesis and nitrogen balance. In a 2 × 4 factorial arrangement, 8 rumen cannulated Nellore cows were distributed in 2 contemporary 4 × 4 Latin squares and received 8 diets that differed in the level of tannins (0.00, 0.75, 1.50 and 2.25% DM) and presence of monensin. Monensin was daily administered to each cow in one square (about 32 mg/kg DM). No interaction between monensin and tannins was observed (p > .05). Tannins linearly reduced feed intake, but linearly increased daily eating time (p < .05), although these did not alter the number of meals. Monensin increased CP digestibility by 6% (p = .0387) while tannins linearly reduced digestibility of DM, CP, OM and TDN, whereas the reduction was quadratic for ADF and NDF. Tannins linearly reduced the rumen disappearance rate by linearly reducing both passage and digestion rates. Tannins also linearly reduced urinary urea, though neither additive affected microbial protein synthesis. Monensin reduced the proportion of N excreted in faeces, whereas tannins linearly increased faecal N and linearly reduced both urinary and retained N. Monensin and tannins have shown independent effects on feeding behaviour, feed intake, digestive parameters, microbial protein synthesis and N balance, but they did not improve nutrient usage, although monensin alone has shown to have potential to promote N utilisation. Tannins may play an important role in reducing the excretion of N in urine.Highlights Tannins reduce the efficiency of nutrient usage in cattle. Tannins change the pathway of the excretion of the feeding nitrogen. The emission of N2O from the urine may be reduced by the use of tannins in cattle feeding. |
| first_indexed | 2024-12-14T18:53:26Z |
| format | Article |
| id | doaj.art-290d5a40ac3b45a284c7cf93fdfa1c4f |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-14T18:53:26Z |
| publishDate | 2020-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-290d5a40ac3b45a284c7cf93fdfa1c4f2022-12-21T22:51:11ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2020-12-0119126227310.1080/1828051X.2020.17296671729667Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cowsRamos Jorge Tseu0Flavio Perna Junior1Roberta Ferreira Carvalho2Guilherme Acácio Sene3Cristiane Barbosa Tropaldi4Alice Helena Peres5Paulo Henrique Mazza Rodrigues6Department of Animal Production, Veterinary College, Eduardo Mondlane UniversityDepartment of Animal Nutrition and Production of the College of Veterinary Medicine and Animal Science (FMVZ), of University of Sao Paulo (USP)Department of Animal Nutrition and Production of the College of Veterinary Medicine and Animal Science (FMVZ), of University of Sao Paulo (USP)Department of Animal Science of the College of Animal Science and Food Engineering (FZEA), University of Sao PauloDepartment of Animal Nutrition and Production of the College of Veterinary Medicine and Animal Science (FMVZ), of University of Sao Paulo (USP)Department of Animal Science of the College of Animal Science and Food Engineering (FZEA), University of Sao PauloDepartment of Animal Nutrition and Production of the College of Veterinary Medicine and Animal Science (FMVZ), of University of Sao Paulo (USP)This study aimed to evaluate the associative effect of monensin and tannins on intake, feeding behaviour, digestibility, rumen kinetics, microbial protein synthesis and nitrogen balance. In a 2 × 4 factorial arrangement, 8 rumen cannulated Nellore cows were distributed in 2 contemporary 4 × 4 Latin squares and received 8 diets that differed in the level of tannins (0.00, 0.75, 1.50 and 2.25% DM) and presence of monensin. Monensin was daily administered to each cow in one square (about 32 mg/kg DM). No interaction between monensin and tannins was observed (p > .05). Tannins linearly reduced feed intake, but linearly increased daily eating time (p < .05), although these did not alter the number of meals. Monensin increased CP digestibility by 6% (p = .0387) while tannins linearly reduced digestibility of DM, CP, OM and TDN, whereas the reduction was quadratic for ADF and NDF. Tannins linearly reduced the rumen disappearance rate by linearly reducing both passage and digestion rates. Tannins also linearly reduced urinary urea, though neither additive affected microbial protein synthesis. Monensin reduced the proportion of N excreted in faeces, whereas tannins linearly increased faecal N and linearly reduced both urinary and retained N. Monensin and tannins have shown independent effects on feeding behaviour, feed intake, digestive parameters, microbial protein synthesis and N balance, but they did not improve nutrient usage, although monensin alone has shown to have potential to promote N utilisation. Tannins may play an important role in reducing the excretion of N in urine.Highlights Tannins reduce the efficiency of nutrient usage in cattle. Tannins change the pathway of the excretion of the feeding nitrogen. The emission of N2O from the urine may be reduced by the use of tannins in cattle feeding.http://dx.doi.org/10.1080/1828051X.2020.1729667degradabilitydigestibilityfeeding additivemicrobial proteinretention |
| spellingShingle | Ramos Jorge Tseu Flavio Perna Junior Roberta Ferreira Carvalho Guilherme Acácio Sene Cristiane Barbosa Tropaldi Alice Helena Peres Paulo Henrique Mazza Rodrigues Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cows Italian Journal of Animal Science degradability digestibility feeding additive microbial protein retention |
| title | Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cows |
| title_full | Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cows |
| title_fullStr | Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cows |
| title_full_unstemmed | Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cows |
| title_short | Effect of tannins and monensin on feeding behaviour, feed intake, digestive parameters and microbial efficiency of nellore cows |
| title_sort | effect of tannins and monensin on feeding behaviour feed intake digestive parameters and microbial efficiency of nellore cows |
| topic | degradability digestibility feeding additive microbial protein retention |
| url | http://dx.doi.org/10.1080/1828051X.2020.1729667 |
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