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Forage and breed effects on behavior and temperament of pregnant beef heifers - Forage and breed effects on behavior and temperament of pregnant beef heifers

Background: Integration of behavioral observations with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.Brahman-influenced(BR;n = 64) and Gelbvieh × Angus(GA;n = 64) heifers consumed either toxic endophyte-infected tall... Full description

Journal Title: 畜牧与生物技术杂志:英文版 - Journal of Animal Science and Biotechnology 2013, Vol.4(03), pp.165-169
Main Author: Angela
Other Authors: R , Mays , Michael , L , Looper , Benjamin , C , Williamson , Kenneth , P , Coffey , Wayne , K , Coblentz , Glen , E , Aiken , Charles , F , Rosenkrans , Jr
Format: Electronic Article Electronic Article
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Quelle: 维普数据 (Chongqing VIP Information Co.)
ID: ISSN: 1674-9782
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title: Forage and breed effects on behavior and temperament of pregnant beef heifers - Forage and breed effects on behavior and temperament of pregnant beef heifers
format: Article
creator:
  • Angela
  • R
  • Mays
  • Michael
  • L
  • Looper
  • Benjamin
  • C
  • Williamson
  • Kenneth
  • P
  • Coffey
  • Wayne
  • K
  • Coblentz
  • Glen
  • E
  • Aiken
  • Charles
  • F
  • Rosenkrans
  • Jr
subjects:
  • 行为观察
  • 小母牛
  • 内生真菌感染
  • 放牧行为
  • 品种类型
  • 动物福利
  • 放牧草场
  • 繁殖
  • Cattle
  • Endophyte-Infected Tall Fescue
  • Grazing Behavior
  • Prolactin
  • Temperament
ispartof: 畜牧与生物技术杂志:英文版 - Journal of Animal Science and Biotechnology, 2013, Vol.4(03), pp.165-169
description: Background: Integration of behavioral observations with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.Brahman-influenced(BR;n = 64) and Gelbvieh × Angus(GA;n = 64) heifers consumed either toxic endophyte-infected tall fescue(E+) or one of two nontoxic endophyte-infected tall fescue(NT) cultivars during two yr.Heifers were weighed at midpoint and termination of grazing.Grazing behavior(grazing,resting in the shade,lying,or standing without grazing) was recorded(n = 13 visual observations per yr in June and July) for each pasture.During yr 2,exit velocity(EV) and serum prolactin(PRL) were determined.Results: Grazing behavior was influenced(P 0.05) by an interaction between fescue cultivar and breed type.Gelbvieh × Angus heifers assigned to E+ pastures had the lowest percentage of animals grazing and the largest percentage of animals resting in the shade.Brahman-influenced heifers had faster EV(P 0.001) than GA heifers(0.52 vs.0.74 ± 0.04 s/m,respectively).Body weight(BW) was affected(P 0.01) by an interaction of tall fescue cultivar and d,and an interaction of tall fescue cultivar and breed type.Heifers grazing NT pastures were heavier(P 0.01) than heifers grazing E+ pastures at midpoint and termination.Gelbvieh × Angus heifers grazing NT pastures were heavier(P 0.01) than GA and BR heifers grazing E+ and BR heifers grazing NT pastures.An interaction of forage cultivar and breed type occurred on serum PRL(P 0.01).Conclusion: Collectively fescue cultivar,EV,and concentrations of serum PRL were associated with grazing behavior.Heifers grazing NT pastures were observed to be grazing more than heifers assigned to E+ pastures,regardless of breed type,which may have contributed to changes in BW and average daily gain(ADG) in heifers.Integration of behavioral observations along with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.
language:
source: 维普数据 (Chongqing VIP Information Co.)
identifier: ISSN: 1674-9782
fulltext: fulltext
issn:
  • 1674-9782
  • 16749782
url: Link


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titleForage and breed effects on behavior and temperament of pregnant beef heifers - Forage and breed effects on behavior and temperament of pregnant beef heifers
creatorAngela ; R ; Mays ; Michael ; L ; Looper ; Benjamin ; C ; Williamson ; Kenneth ; P ; Coffey ; Wayne ; K ; Coblentz ; Glen ; E ; Aiken ; Charles ; F ; Rosenkrans ; Jr
ispartof畜牧与生物技术杂志:英文版 - Journal of Animal Science and Biotechnology, 2013, Vol.4(03), pp.165-169
identifierISSN: 1674-9782
subject行为观察 ; 小母牛 ; 内生真菌感染 ; 放牧行为 ; 品种类型 ; 动物福利 ; 放牧草场 ; 繁殖 ; Cattle; Endophyte-Infected Tall Fescue; Grazing Behavior; Prolactin; Temperament
descriptionBackground: Integration of behavioral observations with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.Brahman-influenced(BR;n = 64) and Gelbvieh × Angus(GA;n = 64) heifers consumed either toxic endophyte-infected tall fescue(E+) or one of two nontoxic endophyte-infected tall fescue(NT) cultivars during two yr.Heifers were weighed at midpoint and termination of grazing.Grazing behavior(grazing,resting in the shade,lying,or standing without grazing) was recorded(n = 13 visual observations per yr in June and July) for each pasture.During yr 2,exit velocity(EV) and serum prolactin(PRL) were determined.Results: Grazing behavior was influenced(P 0.05) by an interaction between fescue cultivar and breed type.Gelbvieh × Angus heifers assigned to E+ pastures had the lowest percentage of animals grazing and the largest percentage of animals resting in the shade.Brahman-influenced heifers had faster EV(P 0.001) than GA heifers(0.52 vs.0.74 ± 0.04 s/m,respectively).Body weight(BW) was affected(P 0.01) by an interaction of tall fescue cultivar and d,and an interaction of tall fescue cultivar and breed type.Heifers grazing NT pastures were heavier(P 0.01) than heifers grazing E+ pastures at midpoint and termination.Gelbvieh × Angus heifers grazing NT pastures were heavier(P 0.01) than GA and BR heifers grazing E+ and BR heifers grazing NT pastures.An interaction of forage cultivar and breed type occurred on serum PRL(P 0.01).Conclusion: Collectively fescue cultivar,EV,and concentrations of serum PRL were associated with grazing behavior.Heifers grazing NT pastures were observed to be grazing more than heifers assigned to E+ pastures,regardless of breed type,which may have contributed to changes in BW and average daily gain(ADG) in heifers.Integration of behavioral observations along with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.
relation作者单位: Department of Animal Science, University of Arkansas, Fayetteville, AR72701, USA. USDA-ARS, US Dairy Forage Research Center, Marshfield, WI54449, USA. USDA-ARS, Forage Animal Production Research Unit, Lexington,KY 40546, USA. Department of Agricultural Sciences, Morehead StateUniversity, 327 Reed Hall, Morehead, KY 40351, USA.
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titleForage and breed effects on behavior and temperament of pregnant beef heifers
descriptionBackground: Integration of behavioral observations with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.Brahman-influenced(BR;n = 64) and Gelbvieh × Angus(GA;n = 64) heifers consumed either toxic endophyte-infected tall fescue(E+) or one of two nontoxic endophyte-infected tall fescue(NT) cultivars during two yr.Heifers were weighed at midpoint and termination of grazing.Grazing behavior(grazing,resting in the shade,lying,or standing without grazing) was recorded(n = 13 visual observations per yr in June and July) for each pasture.During yr 2,exit velocity(EV) and serum prolactin(PRL) were determined.Results: Grazing behavior was influenced(P 0.05) by an interaction between fescue cultivar and breed type.Gelbvieh × Angus heifers assigned to E+ pastures had the lowest percentage of animals grazing and the largest percentage of animals resting in the shade.Brahman-influenced heifers had faster EV(P 0.001) than GA heifers(0.52 vs.0.74 ± 0.04 s/m,respectively).Body weight(BW) was affected(P 0.01) by an interaction of tall fescue cultivar and d,and an interaction of tall fescue cultivar and breed type.Heifers grazing NT pastures were heavier(P 0.01) than heifers grazing E+ pastures at midpoint and termination.Gelbvieh × Angus heifers grazing NT pastures were heavier(P 0.01) than GA and BR heifers grazing E+ and BR heifers grazing NT pastures.An interaction of forage cultivar and breed type occurred on serum PRL(P 0.01).Conclusion: Collectively fescue cultivar,EV,and concentrations of serum PRL were associated with grazing behavior.Heifers grazing NT pastures were observed to be grazing more than heifers assigned to E+ pastures,regardless of breed type,which may have contributed to changes in BW and average daily gain(ADG) in heifers.Integration of behavioral observations along with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.
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titleForage and breed effects on behavior and temperament of pregnant beef heifers - Forage and breed effects on behavior and temperament of pregnant beef heifers
authorAngela ; R ; Mays ; Michael ; L ; Looper ; Benjamin ; C ; Williamson ; Kenneth ; P ; Coffey ; Wayne ; K ; Coblentz ; Glen ; E ; Aiken ; Charles ; F ; Rosenkrans ; Jr
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atitleForage and breed effects on behavior and temperament of pregnant beef heifers - Forage and breed effects on behavior and temperament of pregnant beef heifers
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abstractBackground: Integration of behavioral observations with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.Brahman-influenced(BR;n = 64) and Gelbvieh × Angus(GA;n = 64) heifers consumed either toxic endophyte-infected tall fescue(E+) or one of two nontoxic endophyte-infected tall fescue(NT) cultivars during two yr.Heifers were weighed at midpoint and termination of grazing.Grazing behavior(grazing,resting in the shade,lying,or standing without grazing) was recorded(n = 13 visual observations per yr in June and July) for each pasture.During yr 2,exit velocity(EV) and serum prolactin(PRL) were determined.Results: Grazing behavior was influenced(P 0.05) by an interaction between fescue cultivar and breed type.Gelbvieh × Angus heifers assigned to E+ pastures had the lowest percentage of animals grazing and the largest percentage of animals resting in the shade.Brahman-influenced heifers had faster EV(P 0.001) than GA heifers(0.52 vs.0.74 ± 0.04 s/m,respectively).Body weight(BW) was affected(P 0.01) by an interaction of tall fescue cultivar and d,and an interaction of tall fescue cultivar and breed type.Heifers grazing NT pastures were heavier(P 0.01) than heifers grazing E+ pastures at midpoint and termination.Gelbvieh × Angus heifers grazing NT pastures were heavier(P 0.01) than GA and BR heifers grazing E+ and BR heifers grazing NT pastures.An interaction of forage cultivar and breed type occurred on serum PRL(P 0.01).Conclusion: Collectively fescue cultivar,EV,and concentrations of serum PRL were associated with grazing behavior.Heifers grazing NT pastures were observed to be grazing more than heifers assigned to E+ pastures,regardless of breed type,which may have contributed to changes in BW and average daily gain(ADG) in heifers.Integration of behavioral observations along with traditional selection schemes may lead to enhanced animal well-being and more profitable forage-based cattle production systems.
lad0171160X