Crude protein requirements of light-weight feedlot steersduring a 35-d receiving period
The influence of dietary crude protein (CP) levels on growth performance, morbidity, and estimated dietary net energy (NE) of light-weight crossbreed feedlot calves during a 35-d receiving period was evaluated. For the above, 108 crossbred steers (196±13 kg) were used in 35-d receiving trial. Steers...
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| Autor*in: |
J SALINAS-CHAVIRA [verfasserIn] B C LATACK [verfasserIn] A PLASCENCIA [verfasserIn] D R A ZINN [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Schlagwörter: |
Crude protein, Feedlot-calves, Light-weight, Receiving diets |
|---|
| Übergeordnetes Werk: |
In: Indian Journal of Animal Sciences - Indian Council of Agricultural Research, 2023, 93(2023), 12 |
|---|---|
| Übergeordnetes Werk: |
volume:93 ; year:2023 ; number:12 |
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Link aufrufen |
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| DOI / URN: |
10.56093/ijans.v93i12.141791 |
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| 520 | |a The influence of dietary crude protein (CP) levels on growth performance, morbidity, and estimated dietary net energy (NE) of light-weight crossbreed feedlot calves during a 35-d receiving period was evaluated. For the above, 108 crossbred steers (196±13 kg) were used in 35-d receiving trial. Steers were randomly allocated to 18 pens (6 steers/pen, 6 replicas/treatment). Treatments consisted of a steam flaked corn-based receiving diet (72:28 concentrate to forage ratio) containing 12.5, 13.5 and 14.5% CP. Crude protein level in diet was manipulated by replacing steam flaked corn by canola meal. Steers were allowed ad lib. access to their experimental diets. Morbidity averaged 32%, and was not affected by treatments. Increasing the level of dietary CP improved average daily weight gain, gain efficiency and tended to increase the ratio of observed-to expected dietary NE. Furthermore, in CP range from 12.5 to 13.5%, these effects were evident, but were not apparent at 13.5 to 14.5% CP. It can be concluded that high-energy receiving diet formulations containing 13.5 to 14.5% CP will optimise initial growth performance of light-weight (~200 kg BW) feedlot calves. However, present effect may be more a function of achieving metabolisable amino acid rather than metabolisable protein requirements. | ||
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10.56093/ijans.v93i12.141791 doi (DE-627)DOAJ100135420 (DE-599)DOAJ1c506afae4a54f4e858dc15be84addd5 DE-627 ger DE-627 rakwb eng SF1-1100 J SALINAS-CHAVIRA verfasserin aut Crude protein requirements of light-weight feedlot steersduring a 35-d receiving period 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The influence of dietary crude protein (CP) levels on growth performance, morbidity, and estimated dietary net energy (NE) of light-weight crossbreed feedlot calves during a 35-d receiving period was evaluated. For the above, 108 crossbred steers (196±13 kg) were used in 35-d receiving trial. Steers were randomly allocated to 18 pens (6 steers/pen, 6 replicas/treatment). Treatments consisted of a steam flaked corn-based receiving diet (72:28 concentrate to forage ratio) containing 12.5, 13.5 and 14.5% CP. Crude protein level in diet was manipulated by replacing steam flaked corn by canola meal. Steers were allowed ad lib. access to their experimental diets. Morbidity averaged 32%, and was not affected by treatments. Increasing the level of dietary CP improved average daily weight gain, gain efficiency and tended to increase the ratio of observed-to expected dietary NE. Furthermore, in CP range from 12.5 to 13.5%, these effects were evident, but were not apparent at 13.5 to 14.5% CP. It can be concluded that high-energy receiving diet formulations containing 13.5 to 14.5% CP will optimise initial growth performance of light-weight (~200 kg BW) feedlot calves. However, present effect may be more a function of achieving metabolisable amino acid rather than metabolisable protein requirements. Crude protein, Feedlot-calves, Light-weight, Receiving diets Animal culture B C LATACK verfasserin aut A PLASCENCIA verfasserin aut D R A ZINN verfasserin aut In Indian Journal of Animal Sciences Indian Council of Agricultural Research, 2023 93(2023), 12 (DE-627)DOAJ000156892 23943327 nnns volume:93 year:2023 number:12 https://doi.org/10.56093/ijans.v93i12.141791 kostenfrei https://doaj.org/article/1c506afae4a54f4e858dc15be84addd5 kostenfrei https://epubs.icar.org.in/index.php/IJAnS/article/view/141791 kostenfrei https://doaj.org/toc/0367-8318 Journal toc kostenfrei https://doaj.org/toc/2394-3327 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 93 2023 12 |
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10.56093/ijans.v93i12.141791 doi (DE-627)DOAJ100135420 (DE-599)DOAJ1c506afae4a54f4e858dc15be84addd5 DE-627 ger DE-627 rakwb eng SF1-1100 J SALINAS-CHAVIRA verfasserin aut Crude protein requirements of light-weight feedlot steersduring a 35-d receiving period 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The influence of dietary crude protein (CP) levels on growth performance, morbidity, and estimated dietary net energy (NE) of light-weight crossbreed feedlot calves during a 35-d receiving period was evaluated. For the above, 108 crossbred steers (196±13 kg) were used in 35-d receiving trial. Steers were randomly allocated to 18 pens (6 steers/pen, 6 replicas/treatment). Treatments consisted of a steam flaked corn-based receiving diet (72:28 concentrate to forage ratio) containing 12.5, 13.5 and 14.5% CP. Crude protein level in diet was manipulated by replacing steam flaked corn by canola meal. Steers were allowed ad lib. access to their experimental diets. Morbidity averaged 32%, and was not affected by treatments. Increasing the level of dietary CP improved average daily weight gain, gain efficiency and tended to increase the ratio of observed-to expected dietary NE. Furthermore, in CP range from 12.5 to 13.5%, these effects were evident, but were not apparent at 13.5 to 14.5% CP. It can be concluded that high-energy receiving diet formulations containing 13.5 to 14.5% CP will optimise initial growth performance of light-weight (~200 kg BW) feedlot calves. However, present effect may be more a function of achieving metabolisable amino acid rather than metabolisable protein requirements. Crude protein, Feedlot-calves, Light-weight, Receiving diets Animal culture B C LATACK verfasserin aut A PLASCENCIA verfasserin aut D R A ZINN verfasserin aut In Indian Journal of Animal Sciences Indian Council of Agricultural Research, 2023 93(2023), 12 (DE-627)DOAJ000156892 23943327 nnns volume:93 year:2023 number:12 https://doi.org/10.56093/ijans.v93i12.141791 kostenfrei https://doaj.org/article/1c506afae4a54f4e858dc15be84addd5 kostenfrei https://epubs.icar.org.in/index.php/IJAnS/article/view/141791 kostenfrei https://doaj.org/toc/0367-8318 Journal toc kostenfrei https://doaj.org/toc/2394-3327 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 93 2023 12 |
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crude protein requirements of light-weight feedlot steersduring a 35-d receiving period |
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Crude protein requirements of light-weight feedlot steersduring a 35-d receiving period |
| abstract |
The influence of dietary crude protein (CP) levels on growth performance, morbidity, and estimated dietary net energy (NE) of light-weight crossbreed feedlot calves during a 35-d receiving period was evaluated. For the above, 108 crossbred steers (196±13 kg) were used in 35-d receiving trial. Steers were randomly allocated to 18 pens (6 steers/pen, 6 replicas/treatment). Treatments consisted of a steam flaked corn-based receiving diet (72:28 concentrate to forage ratio) containing 12.5, 13.5 and 14.5% CP. Crude protein level in diet was manipulated by replacing steam flaked corn by canola meal. Steers were allowed ad lib. access to their experimental diets. Morbidity averaged 32%, and was not affected by treatments. Increasing the level of dietary CP improved average daily weight gain, gain efficiency and tended to increase the ratio of observed-to expected dietary NE. Furthermore, in CP range from 12.5 to 13.5%, these effects were evident, but were not apparent at 13.5 to 14.5% CP. It can be concluded that high-energy receiving diet formulations containing 13.5 to 14.5% CP will optimise initial growth performance of light-weight (~200 kg BW) feedlot calves. However, present effect may be more a function of achieving metabolisable amino acid rather than metabolisable protein requirements. |
| abstractGer |
The influence of dietary crude protein (CP) levels on growth performance, morbidity, and estimated dietary net energy (NE) of light-weight crossbreed feedlot calves during a 35-d receiving period was evaluated. For the above, 108 crossbred steers (196±13 kg) were used in 35-d receiving trial. Steers were randomly allocated to 18 pens (6 steers/pen, 6 replicas/treatment). Treatments consisted of a steam flaked corn-based receiving diet (72:28 concentrate to forage ratio) containing 12.5, 13.5 and 14.5% CP. Crude protein level in diet was manipulated by replacing steam flaked corn by canola meal. Steers were allowed ad lib. access to their experimental diets. Morbidity averaged 32%, and was not affected by treatments. Increasing the level of dietary CP improved average daily weight gain, gain efficiency and tended to increase the ratio of observed-to expected dietary NE. Furthermore, in CP range from 12.5 to 13.5%, these effects were evident, but were not apparent at 13.5 to 14.5% CP. It can be concluded that high-energy receiving diet formulations containing 13.5 to 14.5% CP will optimise initial growth performance of light-weight (~200 kg BW) feedlot calves. However, present effect may be more a function of achieving metabolisable amino acid rather than metabolisable protein requirements. |
| abstract_unstemmed |
The influence of dietary crude protein (CP) levels on growth performance, morbidity, and estimated dietary net energy (NE) of light-weight crossbreed feedlot calves during a 35-d receiving period was evaluated. For the above, 108 crossbred steers (196±13 kg) were used in 35-d receiving trial. Steers were randomly allocated to 18 pens (6 steers/pen, 6 replicas/treatment). Treatments consisted of a steam flaked corn-based receiving diet (72:28 concentrate to forage ratio) containing 12.5, 13.5 and 14.5% CP. Crude protein level in diet was manipulated by replacing steam flaked corn by canola meal. Steers were allowed ad lib. access to their experimental diets. Morbidity averaged 32%, and was not affected by treatments. Increasing the level of dietary CP improved average daily weight gain, gain efficiency and tended to increase the ratio of observed-to expected dietary NE. Furthermore, in CP range from 12.5 to 13.5%, these effects were evident, but were not apparent at 13.5 to 14.5% CP. It can be concluded that high-energy receiving diet formulations containing 13.5 to 14.5% CP will optimise initial growth performance of light-weight (~200 kg BW) feedlot calves. However, present effect may be more a function of achieving metabolisable amino acid rather than metabolisable protein requirements. |
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Crude protein requirements of light-weight feedlot steersduring a 35-d receiving period |
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