Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats
11 páginas, 5 tablas.
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American Dairy Science Association
2013-03
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| Subjects: | Goats, Quebracho tannins, Saliva, Sheep, |
| Online Access: | http://hdl.handle.net/10261/92891 |
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dig-igm-es-10261-928912021-03-18T16:54:34Z Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats Salem, A. Z. M. López, Secundino Ranilla, María José González, Jesús Salvador Goats Quebracho tannins Saliva Sheep 11 páginas, 5 tablas. Eight Merino sheep (49.4 +/- 4.23 kg BW) and 8 Alpine goats (53.2 +/- 2.51 kg BW) were used to study the effect of ingestion of quebracho tannins on salivation. Four sheep and 4 goats were individually fed a daily allotment of 20 g DM of alfalfa hay/kg BW (Control). Another 4 sheep and 4 goats were also given 20 g DM of alfalfa hay/kg BW supplemented with 50 g of quebracho/kg DM (Tannin) for a period of 64 d. The saliva secretion from the left parotid gland was collected by insertion of a polyvinyl chloride catheter into the parotid duct and the amount of parotid saliva produced recorded over three 48-h periods on d 1 and 2 (P1), d 31 and 32 (P2), and d 61 and 62 (P3) after the tannin feeding was initiated. The total amount of saliva produced was estimated from rumen water kinetics determined on d 4, d 34, and d 64 of the experiment. Experimental design was completely randomized, with repeated measures on each experimental unit, performing separate analysis for sheep and goats. Parotid saliva production was not affected by the sampling period in either animal species receiving the Control diet. Corresponding values for sheep were 2.04, 2.12, and 2.27 L/d (P = 0.89) and for goats 1.65, 1.79, and 1.86 L/d (P = 0.95). Sheep fed the Tannin diet produced 55, 73, and 107% of the amount of saliva recorded in sheep fed the Control diet on P1, P2, or P3, respectively. Corresponding values in goats were 88, 130, and 134% on P1, P2, or P3, respectively. Estimated total saliva production was not affected (P = 0.50 for sheep and P = 0.97 for goats) by the ingestion of quebracho. There was no difference (P > 0.10) in osmotic pressure, P, Mg, Ca, urea, and protein concentrations in parotid saliva. There were, however, differences in Na and K concentrations in response to the ingestion of quebracho tannins, with Na concentrations increasing (P = 0.05) and K concentrations decreasing (P = 0.04) in sheep saliva and pH increasing (P = 0.05) in goat saliva. In conclusion, the inclusion of quebracho at 50 g/kg DM for 64 d does not appear to alter saliva production in sheep and goats. Peer reviewed 2014-03-04T09:51:45Z 2014-03-04T09:51:45Z 2013-03 artículo http://purl.org/coar/resource_type/c_6501 Journal of Animal Science 91(3) : 1341-1349 (2013) 0021-8812 http://hdl.handle.net/10261/92891 10.2527/jas.2010-3811 en http://dx.doi.org/10.2527/jas.2010-3811 open American Dairy Science Association |
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Goats Quebracho tannins Saliva Sheep Goats Quebracho tannins Saliva Sheep |
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Goats Quebracho tannins Saliva Sheep Goats Quebracho tannins Saliva Sheep Salem, A. Z. M. López, Secundino Ranilla, María José González, Jesús Salvador Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats |
| description |
11 páginas, 5 tablas. |
| format |
artículo |
| topic_facet |
Goats Quebracho tannins Saliva Sheep |
| author |
Salem, A. Z. M. López, Secundino Ranilla, María José González, Jesús Salvador |
| author_facet |
Salem, A. Z. M. López, Secundino Ranilla, María José González, Jesús Salvador |
| author_sort |
Salem, A. Z. M. |
| title |
Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats |
| title_short |
Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats |
| title_full |
Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats |
| title_fullStr |
Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats |
| title_full_unstemmed |
Short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats |
| title_sort |
short- to medium-term effects of consumption of quebracho tannins on saliva production and composition in sheep and goats |
| publisher |
American Dairy Science Association |
| publishDate |
2013-03 |
| url |
http://hdl.handle.net/10261/92891 |
| work_keys_str_mv |
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| _version_ |
1777663948952174592 |