Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet
Objective The influence of substituting steam-flaked corn (SFC) for dry rolled corn (DRC) on feedlot cattle growth performance and dietary net energy when cattle are allowed either ad libitum or 2-h restricted access to the finishing diet was evaluated. Methods Treatment effects were tested using 96...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Asian-Australasian Association of Animal Production Societies
2017-11-01
|
| Series: | Asian-Australasian Journal of Animal Sciences |
| Subjects: | |
| Online Access: | http://www.ajas.info/upload/pdf/ajas-30-11-1563.pdf |
| _version_ | 1818975829387902976 |
|---|---|
| author | Víctor Manuel González-Vizcarra Alejandro Plascencia Daniel Ramos-Aviña Richard Avery Zinn |
| author_facet | Víctor Manuel González-Vizcarra Alejandro Plascencia Daniel Ramos-Aviña Richard Avery Zinn |
| author_sort | Víctor Manuel González-Vizcarra |
| collection | DOAJ |
| description | Objective The influence of substituting steam-flaked corn (SFC) for dry rolled corn (DRC) on feedlot cattle growth performance and dietary net energy when cattle are allowed either ad libitum or 2-h restricted access to the finishing diet was evaluated. Methods Treatment effects were tested using 96 crossbred steers (251±2 kg) during the initial 56 d of the finishing phase. Cattle were blocked by weight and randomly assigned within blocks to 16 pens (4 pens/treatment). Bunk space was sufficient (41 cm/head) to allow all steers access to the feed bunk at the same time. Treatments consisted of two finishing diets containing (dry matter basis) 77.1% corn grain processed by dry rolling (density = 0.50 kg/L) or steam flaking (density = 0.36 kg/L). Cattle were fed twice daily at 06:00 and 14:00 h, allowing for approximately 5% residual. In the case of restricted feeding, steers were allowed access to feeders for 1 h following each feeding, after which residual feed was withdrawn. Results There were no treatment interactions on dry matter intake (DMI), average daily gain (ADG), gain efficiency (G:F), or dietary net energy (NE). Restricting feed access time reduced (p <0.01) feed intake, and hence, ADG. Substitution of SFC for DRC increased (p<0.01) ADG, feed efficiency (G:F), and estimated dietary NE, without affecting DMI. Based on tabular net energy of maintenance (NEm) value (2.18 Mcal/kg) for DRC, the estimated NEm value for SFC using the replacement technique, averaged 2.44 Mcal/kg; an improvement of 10.7%. The ratio of observed-to-expected dietary NE was not affected by feed access time. Conclusion Substitution of SFC for DRC in finishing diets for feedlot cattle enhanced ADG, gain efficiency, and the NE value of the diet. Although restriction of feed access time depressed DMI and ADG, it did not affect the comparative benefit of steam flaking toward enhancement of ADG, G:F, and dietary NE. |
| first_indexed | 2024-12-20T16:02:10Z |
| format | Article |
| id | doaj.art-9c15ca1032574d159111fa3d7a822986 |
| institution | Directory Open Access Journal |
| issn | 1011-2367 1976-5517 |
| language | English |
| last_indexed | 2024-12-20T16:02:10Z |
| publishDate | 2017-11-01 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| record_format | Article |
| series | Asian-Australasian Journal of Animal Sciences |
| spelling | doaj.art-9c15ca1032574d159111fa3d7a8229862022-12-21T19:34:14ZengAsian-Australasian Association of Animal Production SocietiesAsian-Australasian Journal of Animal Sciences1011-23671976-55172017-11-0130111563156710.5713/ajas.17.018523770Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing dietVíctor Manuel González-Vizcarra0Alejandro Plascencia1Daniel Ramos-Aviña2Richard Avery Zinn3 Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali 21100, Baja California, México Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali 21100, Baja California, México Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali 21100, Baja California, México Department of Animal Science, University of California, Davis, CA 95616, USAObjective The influence of substituting steam-flaked corn (SFC) for dry rolled corn (DRC) on feedlot cattle growth performance and dietary net energy when cattle are allowed either ad libitum or 2-h restricted access to the finishing diet was evaluated. Methods Treatment effects were tested using 96 crossbred steers (251±2 kg) during the initial 56 d of the finishing phase. Cattle were blocked by weight and randomly assigned within blocks to 16 pens (4 pens/treatment). Bunk space was sufficient (41 cm/head) to allow all steers access to the feed bunk at the same time. Treatments consisted of two finishing diets containing (dry matter basis) 77.1% corn grain processed by dry rolling (density = 0.50 kg/L) or steam flaking (density = 0.36 kg/L). Cattle were fed twice daily at 06:00 and 14:00 h, allowing for approximately 5% residual. In the case of restricted feeding, steers were allowed access to feeders for 1 h following each feeding, after which residual feed was withdrawn. Results There were no treatment interactions on dry matter intake (DMI), average daily gain (ADG), gain efficiency (G:F), or dietary net energy (NE). Restricting feed access time reduced (p <0.01) feed intake, and hence, ADG. Substitution of SFC for DRC increased (p<0.01) ADG, feed efficiency (G:F), and estimated dietary NE, without affecting DMI. Based on tabular net energy of maintenance (NEm) value (2.18 Mcal/kg) for DRC, the estimated NEm value for SFC using the replacement technique, averaged 2.44 Mcal/kg; an improvement of 10.7%. The ratio of observed-to-expected dietary NE was not affected by feed access time. Conclusion Substitution of SFC for DRC in finishing diets for feedlot cattle enhanced ADG, gain efficiency, and the NE value of the diet. Although restriction of feed access time depressed DMI and ADG, it did not affect the comparative benefit of steam flaking toward enhancement of ADG, G:F, and dietary NE.http://www.ajas.info/upload/pdf/ajas-30-11-1563.pdfCorn ProcessingTime of FeedingSteersFinishingPerformance |
| spellingShingle | Víctor Manuel González-Vizcarra Alejandro Plascencia Daniel Ramos-Aviña Richard Avery Zinn Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet Asian-Australasian Journal of Animal Sciences Corn Processing Time of Feeding Steers Finishing Performance |
| title | Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet |
| title_full | Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet |
| title_fullStr | Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet |
| title_full_unstemmed | Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet |
| title_short | Influence of substituting steam-flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet |
| title_sort | influence of substituting steam flaked corn for dry rolled corn on feedlot cattle growth performance when cattle are allowed either or restricted access to the finishing diet |
| topic | Corn Processing Time of Feeding Steers Finishing Performance |
| url | http://www.ajas.info/upload/pdf/ajas-30-11-1563.pdf |
| work_keys_str_mv | AT victormanuelgonzalezvizcarra influenceofsubstitutingsteamflakedcornfordryrolledcornonfeedlotcattlegrowthperformancewhencattleareallowedeitherorrestrictedaccesstothefinishingdiet AT alejandroplascencia influenceofsubstitutingsteamflakedcornfordryrolledcornonfeedlotcattlegrowthperformancewhencattleareallowedeitherorrestrictedaccesstothefinishingdiet AT danielramosavina influenceofsubstitutingsteamflakedcornfordryrolledcornonfeedlotcattlegrowthperformancewhencattleareallowedeitherorrestrictedaccesstothefinishingdiet AT richardaveryzinn influenceofsubstitutingsteamflakedcornfordryrolledcornonfeedlotcattlegrowthperformancewhencattleareallowedeitherorrestrictedaccesstothefinishingdiet |