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Abstract
SummaryBloat in identical twin lactating cattle grazing clover-rich pastures was controlled by twice-daily drenching with 7 ml ‘ Pluronic’ L 64 in water. The drench did not alter milk composition and there was no significant difference in milk production between control and treated groups. A significant (P <0·05) linear relationship between bloat protection and butterfat production was found between twin sets. Drenching increased milk production in high-bloating cows but slightly depressed production in low-bloating animals.
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Vasconcelos JT, Galyean ML. ASAS Centennial Paper: Contributions in the Journal of Animal Science to understanding cattle metabolic and digestive disorders1. J Anim Sci 2008; 86:1711-21. [DOI: 10.2527/jas.2008-0854] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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DAVIS JD, ESSIG HW. COMPARISON OF THREE BLOAT-PREVENTING COMPOUNDS FOR CATTLE GRAZING CLOVER. CANADIAN JOURNAL OF ANIMAL SCIENCE 1972. [DOI: 10.4141/cjas72-037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Eighteen steers that had previous records of bloat susceptibility were used to compare the effectiveness of two defaunating agents, copper sulfate (CuSO4) and dioctyl sodium sulfosuccinate (DOSS), with a nonionic surfactant, poloxalene (POE), for preventing bloat in steers grazing Regal clover (Trifolium repens). All compounds were equally effective in preventing bloat following the morning grazing period. Steers in all three treatments had a greater (P <.05) incidence and severity of bloat after the afternoon grazing period than after the morning grazing. Combined morning and afternoon incidence of bloat was highest (P <.05) for the POE-treated steers. Rumen content from CuSO4-treated steers had a lower (P <.05) acetic, propionic, butyric, valeric, and total VFA (volatile fatty acids) concentration change than the rumen content from other groups of steers. VFA concentration change of rumen content from DOSS-treated steers was similar to POE-treated except for propionic, which was negative and lower (P <.05). Protozoa were present in the CuSO4-treated steers, though the mean count before and after grazing appeared to be lower than in the other two treatments. DOSS-treated steers also appeared to have lower mean counts of protozoa than the POE-treated steers. In vitro gas production by CuSO4-treated steers was less (P <.01) than the DOSS and POE-treated animals. Protozoa appear to be important contributors to legume bloat in ruminants.
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Stiles D, Bartley E, Kilgore G, Boren F, Perry H. Comparative Value of Alfalfa Pasture, Alfalfa Greenchop, or Alfalfa Hay for Lactating Dairy Cows. J Dairy Sci 1971. [DOI: 10.3168/jds.s0022-0302(71)85779-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Stiles D, Bartley E, Dayton A, Perry H, Kilgore G, Boren F. Growth of Holstein Calves Fed Alfalfa Pasture, Alfalfa Greenchop, or Alfalfa Hay. J Dairy Sci 1970. [DOI: 10.3168/jds.s0022-0302(70)86237-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Stiles D, Bartley E, Kilgore G, Boren F, Ott R, Clark J. Comparative Value of Afalfa Pasture, Bromegrass Pasture, or Alfalfa Hay for Lactating Dairy Cows. J Dairy Sci 1968. [DOI: 10.3168/jds.s0022-0302(68)87242-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Foote LE, Girouard RE, Johnston JE, Rainey J, Brown PB, Willis WH. Poloxalene for prevention of legume bloat. J Dairy Sci 1968; 51:584-90. [PMID: 5689910 DOI: 10.3168/jds.s0022-0302(68)87032-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Stiles DA, Bartley EE, Erhart AB, Meyer RM, Boren FW. Bloat in cattle. 13. Efficacy of molasses-salt blocks containing poloxalene in control of alfalfa bloat. J Dairy Sci 1967; 50:1437-43. [PMID: 6064143 DOI: 10.3168/jds.s0022-0302(67)87646-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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