Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning
To examine the effects of endophyte-infected tall fescue during late gestation on maternal and offspring performance, multiparous Angus cows (n = 40) were bred via AI and allocated into grazing treatments: toxic (E+) or nontoxic (E-) endophyte tall fescue. Cows body weight (BW), body temperature, body condition score (BCS), and respiration rate were recorded and blood samples collected on 180, 210 and 240 days of gestation. Calf's BW were recorded at birth and weaning. Cow/calf pairs were managed as one group on nontoxic pasture from calving until weaning (180 days of age). Body weight decreased (P = 0.022) and body temperature increased (P < 0.0001) at day 240 in E+ compared to E-cows. BCS did not differ (P = 0.891) between treatments. Respiratory frequency increased (P = 0.003) in E+ compared to E-cows. Ergovaline concentration of urine increased (P = 0.003) at day 210 and 240 in E+ compared to E-cows. Prolactin concentrations decreased (P < 0.0001) at day 210 in E+ compared to E-cows. Birth and weaning weight decreased (P < 0.05) in calves from E+ cows compared to E-cows. Overall, grazing endophyte-infected tall fescue reduced maternal and subsequent offspring BW.
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Format: | info:ar-repo/semantics/artículo biblioteca |
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ECronicon Open Access
2020-01-03
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Subjects: | Ganado de Carne, Ternero, Calves, Festuca Arundinacea, Endofitas, Fitotoxicidad, Producción Animal, Beef Cattle, Endofyty, Phytotoxicity, Animal Production, |
Online Access: | http://hdl.handle.net/20.500.12123/6721 https://www.ecronicon.com/ecve/exposure-to-toxic-fescue-during-late-gestation-on-beef-cows-effects-on-cow-performance-and-offspring-performance-from-birth-to-weaning.php |
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oai:localhost:20.500.12123-67212020-02-11T12:37:47Z Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning McCarty, Keelee Bence, Ángel Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Canton, German Jose Long, Nathan M. Ganado de Carne Ternero Calves Festuca Arundinacea Endofitas Fitotoxicidad Producción Animal Beef Cattle Endofyty Phytotoxicity Animal Production To examine the effects of endophyte-infected tall fescue during late gestation on maternal and offspring performance, multiparous Angus cows (n = 40) were bred via AI and allocated into grazing treatments: toxic (E+) or nontoxic (E-) endophyte tall fescue. Cows body weight (BW), body temperature, body condition score (BCS), and respiration rate were recorded and blood samples collected on 180, 210 and 240 days of gestation. Calf's BW were recorded at birth and weaning. Cow/calf pairs were managed as one group on nontoxic pasture from calving until weaning (180 days of age). Body weight decreased (P = 0.022) and body temperature increased (P < 0.0001) at day 240 in E+ compared to E-cows. BCS did not differ (P = 0.891) between treatments. Respiratory frequency increased (P = 0.003) in E+ compared to E-cows. Ergovaline concentration of urine increased (P = 0.003) at day 210 and 240 in E+ compared to E-cows. Prolactin concentrations decreased (P < 0.0001) at day 210 in E+ compared to E-cows. Birth and weaning weight decreased (P < 0.05) in calves from E+ cows compared to E-cows. Overall, grazing endophyte-infected tall fescue reduced maternal and subsequent offspring BW. EEA Balcarce Fil: McCarty, Keelee. Clemson University. Department of Animal and Veterinary Sciences; Estados Unidos Fil: Bence, Ángel. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina Fil: Maresca, Sebastián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina. Fil: Lopez Valiente, Sebastián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina. Fil: Rodriguez, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina. Fil: Cantón, Germán José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Long, Nathan M. Clemson University. Department of Animal and Veterinary Sciences; Estados Unidos 2020-02-11T12:16:44Z 2020-02-11T12:16:44Z 2020-01-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/6721 https://www.ecronicon.com/ecve/exposure-to-toxic-fescue-during-late-gestation-on-beef-cows-effects-on-cow-performance-and-offspring-performance-from-birth-to-weaning.php eng info:eu-repo/semantics/openAccess application/pdf ECronicon Open Access EC Veterinary Science 5 (2) : 01-15. (2020) |
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Ganado de Carne Ternero Calves Festuca Arundinacea Endofitas Fitotoxicidad Producción Animal Beef Cattle Endofyty Phytotoxicity Animal Production Ganado de Carne Ternero Calves Festuca Arundinacea Endofitas Fitotoxicidad Producción Animal Beef Cattle Endofyty Phytotoxicity Animal Production |
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Ganado de Carne Ternero Calves Festuca Arundinacea Endofitas Fitotoxicidad Producción Animal Beef Cattle Endofyty Phytotoxicity Animal Production Ganado de Carne Ternero Calves Festuca Arundinacea Endofitas Fitotoxicidad Producción Animal Beef Cattle Endofyty Phytotoxicity Animal Production McCarty, Keelee Bence, Ángel Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Canton, German Jose Long, Nathan M. Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning |
description |
To examine the effects of endophyte-infected tall fescue during late gestation on maternal and offspring performance, multiparous Angus cows (n = 40) were bred via AI and allocated into grazing treatments: toxic (E+) or nontoxic (E-) endophyte tall fescue. Cows body weight (BW), body temperature, body condition score (BCS), and respiration rate were recorded and blood samples collected on 180, 210 and 240 days of gestation. Calf's BW were recorded at birth and weaning. Cow/calf pairs were managed as one group on nontoxic pasture from calving until weaning (180 days of age). Body weight decreased (P = 0.022) and body temperature increased (P < 0.0001) at day 240 in E+ compared to E-cows. BCS did not differ (P = 0.891) between treatments. Respiratory frequency increased (P = 0.003) in E+ compared to E-cows. Ergovaline concentration of urine increased (P = 0.003) at day 210 and 240 in E+ compared to E-cows. Prolactin concentrations decreased (P < 0.0001) at day 210 in E+ compared to E-cows. Birth and weaning weight decreased (P < 0.05) in calves from E+ cows compared to E-cows. Overall, grazing endophyte-infected tall fescue reduced maternal and subsequent offspring BW. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Ganado de Carne Ternero Calves Festuca Arundinacea Endofitas Fitotoxicidad Producción Animal Beef Cattle Endofyty Phytotoxicity Animal Production |
author |
McCarty, Keelee Bence, Ángel Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Canton, German Jose Long, Nathan M. |
author_facet |
McCarty, Keelee Bence, Ángel Maresca, Sebastian Lopez Valiente, Sebastian Rodriguez, Alejandro Martin Canton, German Jose Long, Nathan M. |
author_sort |
McCarty, Keelee |
title |
Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning |
title_short |
Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning |
title_full |
Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning |
title_fullStr |
Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning |
title_full_unstemmed |
Exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning |
title_sort |
exposure to toxic fescue during late gestation on beef cows: effects on cow performance and offspring performance from birth to weaning |
publisher |
ECronicon Open Access |
publishDate |
2020-01-03 |
url |
http://hdl.handle.net/20.500.12123/6721 https://www.ecronicon.com/ecve/exposure-to-toxic-fescue-during-late-gestation-on-beef-cows-effects-on-cow-performance-and-offspring-performance-from-birth-to-weaning.php |
work_keys_str_mv |
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