Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristics
Objective: Evaluate the effect of arrival weight on feedlot growth performance and carcass characteristics of Holstein steers of similar age. Material and Methods: Three hundred calf-fed Holstein steers (age 113 ± 1-day) were distributed in a completely randomly unbalanced design and divided into f...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Network for the Veterinarians of Bangladesh
2022-03-01
|
| Series: | Journal of Advanced Veterinary and Animal Research |
| Subjects: | |
| Online Access: | http://www.ejmanager.com/fulltextpdf.php?mno=124893 |
| _version_ | 1817982650044907520 |
|---|---|
| author | Rodrigo Flores Alejandro Plascencia Alberto Barreras Jaime Salinas-Chavira Noemí Torrentera Richard A. Zinn |
| author_facet | Rodrigo Flores Alejandro Plascencia Alberto Barreras Jaime Salinas-Chavira Noemí Torrentera Richard A. Zinn |
| author_sort | Rodrigo Flores |
| collection | DOAJ |
| description | Objective: Evaluate the effect of arrival weight on feedlot growth performance and carcass characteristics of Holstein steers of similar age.
Material and Methods: Three hundred calf-fed Holstein steers (age 113 ± 1-day) were distributed in a completely randomly unbalanced design and divided into five categories (105, 112, 117, 123, and 129 kg) of shrunk initial weight (SIW). Calves were weighed on days 1, 112, 224, and 361. Calves were fed steam-flaked corn-based diets. Growth performance and dietary energy were evaluated for each period and the study as a whole (1–361-day).
Results: During the rearing period, average daily gain (ADG) increased (linearly effect, p < 0.01) with increasing birth weight. Birthweight was positively associated (p < 0.05) with feedlot arrival weight (R2 = 0.47) and final harvest weight (R2 = 0.36). Overall ADG increased (p < 0.01) with increasing SIW. Dry matter intake increased linearly during the first 224-day but quadratically during the last 137 days. Overall, there was a quadratic effect (p < 0.05) of SIW on gain-to-feed and observed-to-expected dietary NE, with lower efficiencies (4%) for steers in both the lightest and heaviest SIW. Hot carcass weight, Longissimus muscle area, marbling score, and fat thickness increased (linear effect, p ≤ 0.03) as SIW increased, whereas kidney-pelvic-heart fat and yield-grade were unaffected.
Conclusions: The initial arrival weight influences the growth performance, energetic efficiency, and carcass characteristics of Holstein steers of similar age. The effect is more pronounced in the lighter ( [J Adv Vet Anim Res 2022; 9(1.000): 59-65] |
| first_indexed | 2024-04-13T23:23:18Z |
| format | Article |
| id | doaj.art-4e350029fe76456cb1abfcb1c60f9b62 |
| institution | Directory Open Access Journal |
| issn | 2311-7710 |
| language | English |
| last_indexed | 2024-04-13T23:23:18Z |
| publishDate | 2022-03-01 |
| publisher | Network for the Veterinarians of Bangladesh |
| record_format | Article |
| series | Journal of Advanced Veterinary and Animal Research |
| spelling | doaj.art-4e350029fe76456cb1abfcb1c60f9b622022-12-22T02:25:09ZengNetwork for the Veterinarians of BangladeshJournal of Advanced Veterinary and Animal Research2311-77102022-03-0191596510.5455/javar.2022.i569124893Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristicsRodrigo Flores0Alejandro Plascencia1Alberto Barreras2Jaime Salinas-Chavira3Noemí Torrentera4Richard A. Zinn5Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali, Mexico Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali, Mexico. & Departamento de Ciencias Naturales y Exactas, Universidad Autónoma de Occidente, Guasave, Mexico Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali, Mexico Departamento de Nutrición Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, Cd Victoria, Mexico Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali, Mexico Department Animal Science, University of California, Davis 95616, CA, USA.Objective: Evaluate the effect of arrival weight on feedlot growth performance and carcass characteristics of Holstein steers of similar age. Material and Methods: Three hundred calf-fed Holstein steers (age 113 ± 1-day) were distributed in a completely randomly unbalanced design and divided into five categories (105, 112, 117, 123, and 129 kg) of shrunk initial weight (SIW). Calves were weighed on days 1, 112, 224, and 361. Calves were fed steam-flaked corn-based diets. Growth performance and dietary energy were evaluated for each period and the study as a whole (1–361-day). Results: During the rearing period, average daily gain (ADG) increased (linearly effect, p < 0.01) with increasing birth weight. Birthweight was positively associated (p < 0.05) with feedlot arrival weight (R2 = 0.47) and final harvest weight (R2 = 0.36). Overall ADG increased (p < 0.01) with increasing SIW. Dry matter intake increased linearly during the first 224-day but quadratically during the last 137 days. Overall, there was a quadratic effect (p < 0.05) of SIW on gain-to-feed and observed-to-expected dietary NE, with lower efficiencies (4%) for steers in both the lightest and heaviest SIW. Hot carcass weight, Longissimus muscle area, marbling score, and fat thickness increased (linear effect, p ≤ 0.03) as SIW increased, whereas kidney-pelvic-heart fat and yield-grade were unaffected. Conclusions: The initial arrival weight influences the growth performance, energetic efficiency, and carcass characteristics of Holstein steers of similar age. The effect is more pronounced in the lighter ( [J Adv Vet Anim Res 2022; 9(1.000): 59-65]http://www.ejmanager.com/fulltextpdf.php?mno=124893arrival weight; feedlot; holstein; performance; carcass |
| spellingShingle | Rodrigo Flores Alejandro Plascencia Alberto Barreras Jaime Salinas-Chavira Noemí Torrentera Richard A. Zinn Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristics Journal of Advanced Veterinary and Animal Research arrival weight; feedlot; holstein; performance; carcass |
| title | Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristics |
| title_full | Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristics |
| title_fullStr | Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristics |
| title_full_unstemmed | Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristics |
| title_short | Influence of arrival weight of Holstein steers of similar age on feedlot growth performance, dietary energetics, and carcass characteristics |
| title_sort | influence of arrival weight of holstein steers of similar age on feedlot growth performance dietary energetics and carcass characteristics |
| topic | arrival weight; feedlot; holstein; performance; carcass |
| url | http://www.ejmanager.com/fulltextpdf.php?mno=124893 |
| work_keys_str_mv | AT rodrigoflores influenceofarrivalweightofholsteinsteersofsimilarageonfeedlotgrowthperformancedietaryenergeticsandcarcasscharacteristics AT alejandroplascencia influenceofarrivalweightofholsteinsteersofsimilarageonfeedlotgrowthperformancedietaryenergeticsandcarcasscharacteristics AT albertobarreras influenceofarrivalweightofholsteinsteersofsimilarageonfeedlotgrowthperformancedietaryenergeticsandcarcasscharacteristics AT jaimesalinaschavira influenceofarrivalweightofholsteinsteersofsimilarageonfeedlotgrowthperformancedietaryenergeticsandcarcasscharacteristics AT noemitorrentera influenceofarrivalweightofholsteinsteersofsimilarageonfeedlotgrowthperformancedietaryenergeticsandcarcasscharacteristics AT richardazinn influenceofarrivalweightofholsteinsteersofsimilarageonfeedlotgrowthperformancedietaryenergeticsandcarcasscharacteristics |