Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goats
Tea waste (TW) has a protein content of approximately 30% and the potential to replace other protein sources. However, the effect of dietary TW supplement is still ambiguous. The objective of this study was to investigate the effect of three levels of a dietary TW supplement on the performances and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Italian Journal of Animal Science |
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| Online Access: | http://dx.doi.org/10.1080/1828051X.2023.2206429 |
| _version_ | 1827276542003118080 |
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| author | Rapepat Sundod Saranporn Poothong Chackrit Nuengjamnong |
| author_facet | Rapepat Sundod Saranporn Poothong Chackrit Nuengjamnong |
| author_sort | Rapepat Sundod |
| collection | DOAJ |
| description | Tea waste (TW) has a protein content of approximately 30% and the potential to replace other protein sources. However, the effect of dietary TW supplement is still ambiguous. The objective of this study was to investigate the effect of three levels of a dietary TW supplement on the performances and physiological changes in goats. Nine multiparous crossbred Saanen lactating goats were arranged in three replicates of a 3 × 3 Latin square. The three groups of goats were fed with 0, 5, or 10 by weight [wt%] dry matter [DM] basis TW, respectively, for a 21-day period. All diets were a total mixed ration (TMR) containing a 40:60 (DM basis) ratio of concentrate: roughage. The goats were weighed at 15 and 21 days. Faeces and urine were collected during the last 7 days of each period. The TW addition had no effect on the DM intake (DMI), DMI% and body weight. The milk protein content in goats on a 10 wt% TW diet was significantly higher (p < 0.05) than that of goats on the other diets. The milk lactose of both TW diets significantly decreased when compared to the control diet (p < 0.01). Goats with 5 and 10 wt% TW tended to decrease digestibility of crude protein (p = 0.10). There were no changes in the DM digestibility, blood glucose, blood urea nitrogen, triglyceride, total protein, ruminal pH, ammonia-nitrogen, total volatile fatty acids, acetic acid (A), propionic acid (P), A:P ratio, nitrogen balance, allantoin excretion and methane emission among treatments. Diets with 5 or 10 wt% TW (DM basis) could be used to replace other plant protein sources.Highlights The tea waste replaced as protein source up to 10% in goat feed with no effect on dry matter intake, blood profile and methane production. The 10% tea waste diet increased milk protein content in dairy goat. Low dose of condensed tannin in tea waste provided more protein absorption in small intestine by reducing ruminal NH3–N level. |
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| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-04-24T07:00:23Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-ee9cdaebbe234ec896cea491cad9238e2024-04-22T08:52:28ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2023-12-0122145346210.1080/1828051X.2023.22064292206429Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goatsRapepat Sundod0Saranporn Poothong1Chackrit Nuengjamnong2Department of Animal Husbandry, Faculty of Veterinary Science, Chulalongkorn UniversityDepartment of Animal Husbandry, Faculty of Veterinary Science, Chulalongkorn UniversityDepartment of Animal Husbandry, Faculty of Veterinary Science, Chulalongkorn UniversityTea waste (TW) has a protein content of approximately 30% and the potential to replace other protein sources. However, the effect of dietary TW supplement is still ambiguous. The objective of this study was to investigate the effect of three levels of a dietary TW supplement on the performances and physiological changes in goats. Nine multiparous crossbred Saanen lactating goats were arranged in three replicates of a 3 × 3 Latin square. The three groups of goats were fed with 0, 5, or 10 by weight [wt%] dry matter [DM] basis TW, respectively, for a 21-day period. All diets were a total mixed ration (TMR) containing a 40:60 (DM basis) ratio of concentrate: roughage. The goats were weighed at 15 and 21 days. Faeces and urine were collected during the last 7 days of each period. The TW addition had no effect on the DM intake (DMI), DMI% and body weight. The milk protein content in goats on a 10 wt% TW diet was significantly higher (p < 0.05) than that of goats on the other diets. The milk lactose of both TW diets significantly decreased when compared to the control diet (p < 0.01). Goats with 5 and 10 wt% TW tended to decrease digestibility of crude protein (p = 0.10). There were no changes in the DM digestibility, blood glucose, blood urea nitrogen, triglyceride, total protein, ruminal pH, ammonia-nitrogen, total volatile fatty acids, acetic acid (A), propionic acid (P), A:P ratio, nitrogen balance, allantoin excretion and methane emission among treatments. Diets with 5 or 10 wt% TW (DM basis) could be used to replace other plant protein sources.Highlights The tea waste replaced as protein source up to 10% in goat feed with no effect on dry matter intake, blood profile and methane production. The 10% tea waste diet increased milk protein content in dairy goat. Low dose of condensed tannin in tea waste provided more protein absorption in small intestine by reducing ruminal NH3–N level.http://dx.doi.org/10.1080/1828051X.2023.2206429crossbred dairy goatmethane emissiontannintea wastevolatile fatty acids |
| spellingShingle | Rapepat Sundod Saranporn Poothong Chackrit Nuengjamnong Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goats Italian Journal of Animal Science crossbred dairy goat methane emission tannin tea waste volatile fatty acids |
| title | Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goats |
| title_full | Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goats |
| title_fullStr | Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goats |
| title_full_unstemmed | Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goats |
| title_short | Substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred Saanen lactating goats |
| title_sort | substitution effect of protein source with tea waste on productive performances and ruminal fermentation in crossbred saanen lactating goats |
| topic | crossbred dairy goat methane emission tannin tea waste volatile fatty acids |
| url | http://dx.doi.org/10.1080/1828051X.2023.2206429 |
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