Performance of three racial groups of grazing steers supplemented with agroindustrial by-products

Performance of three racial groups of grazing steers supplemented with agroindustrial by-products

Performance of three racial groups of grazing steers supplemented with agroindustrial by-products. The main objective of this research was to evaluate the productive performance of three racial groups of steers, receiving or not supplementation with agro-industry by-products under grazing conditions in the humid Colombian Caribbean. Forty-eight steers: Angus x Brahman (AxB), Simmental x Brahman (SxB) and Romosinuano x Brahman (RxB) with average weight of 274± 13,76 kg and 17 months old  were randomly distributed to two types of feed management; with feed supplementation (CSA: 24 animals) and without  feed supplementation (SSA: 24 animals) in each breed group, using a complete randomized design (DCA). The supplementation consisted of a mix of rice bran (56.5%), cottonseed (43.5%) and mineralized salt (100 g/steer/day). The highest daily weight gain (GDP) was observed in the animals of the treatments AxB CSA, SxB CSA and RxB CSA (p= 0.001) with 730, 942 and 650 g/day respectively. The GDP of the animals AxB SSA, SxB SSA and RxB SSA, corresponded to  560, 520, and 608 g/animal/day. Regarding body composition by ultrasound measurements, the greater attributes of the ribeye area (p=0.0175) were observed for the AxB CSA (43.73 2.54 cm2) y RxB CSA treatments (45,51±2,34 cm2) and for the rump fat thickness (p=0.0229), the RxB CSA treatment (3.97 0.25 mm). The highest projected meat production kg/ha in a year, corresponded to the average for the biotypes of CSA treatment with 1,131.33 kilograms/ha/year, surpassing by 27.5% the production of SSA biotypes treatment of 821.26 kilograms. From  the results obtained in this research, the supplementation of grazing steers with by-products of agro-industry  becomes a productive activity to increasing GDP and meat production kg/ha, reflecting the potential of this practice as a valid strategy for the development of more efficient and competitive meat production systems for the humid Colombian Caribbean region.

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Main Authors: Mestra-Vargas, Lorena Inés, Reza-García, Sony, Ramírez-Toro, Edison Julián, Medina-Herrera, Diego
Format: Digital revista
Language:spa
Published: Universidad de Costa Rica 2020
Online Access:https://revistas.ucr.ac.cr/index.php/nutrianimal/article/view/43767
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id oai:portal.ucr.ac.cr:article43767
record_format ojs
institution UCR
collection OJS
country Costa Rica
countrycode CR
component Revista
access En linea
databasecode rev-nutrianimal
tag revista
region America Central
libraryname Escuela de Zootécnia
language spa
format Digital
author Mestra-Vargas, Lorena Inés
Reza-García, Sony
Ramírez-Toro, Edison Julián
Medina-Herrera, Diego
spellingShingle Mestra-Vargas, Lorena Inés
Reza-García, Sony
Ramírez-Toro, Edison Julián
Medina-Herrera, Diego
Performance of three racial groups of grazing steers supplemented with agroindustrial by-products
author_facet Mestra-Vargas, Lorena Inés
Reza-García, Sony
Ramírez-Toro, Edison Julián
Medina-Herrera, Diego
author_sort Mestra-Vargas, Lorena Inés
title Performance of three racial groups of grazing steers supplemented with agroindustrial by-products
title_short Performance of three racial groups of grazing steers supplemented with agroindustrial by-products
title_full Performance of three racial groups of grazing steers supplemented with agroindustrial by-products
title_fullStr Performance of three racial groups of grazing steers supplemented with agroindustrial by-products
title_full_unstemmed Performance of three racial groups of grazing steers supplemented with agroindustrial by-products
title_sort performance of three racial groups of grazing steers supplemented with agroindustrial by-products
description Performance of three racial groups of grazing steers supplemented with agroindustrial by-products. The main objective of this research was to evaluate the productive performance of three racial groups of steers, receiving or not supplementation with agro-industry by-products under grazing conditions in the humid Colombian Caribbean. Forty-eight steers: Angus x Brahman (AxB), Simmental x Brahman (SxB) and Romosinuano x Brahman (RxB) with average weight of 274± 13,76 kg and 17 months old  were randomly distributed to two types of feed management; with feed supplementation (CSA: 24 animals) and without  feed supplementation (SSA: 24 animals) in each breed group, using a complete randomized design (DCA). The supplementation consisted of a mix of rice bran (56.5%), cottonseed (43.5%) and mineralized salt (100 g/steer/day). The highest daily weight gain (GDP) was observed in the animals of the treatments AxB CSA, SxB CSA and RxB CSA (p= 0.001) with 730, 942 and 650 g/day respectively. The GDP of the animals AxB SSA, SxB SSA and RxB SSA, corresponded to  560, 520, and 608 g/animal/day. Regarding body composition by ultrasound measurements, the greater attributes of the ribeye area (p=0.0175) were observed for the AxB CSA (43.73 2.54 cm2) y RxB CSA treatments (45,51±2,34 cm2) and for the rump fat thickness (p=0.0229), the RxB CSA treatment (3.97 0.25 mm). The highest projected meat production kg/ha in a year, corresponded to the average for the biotypes of CSA treatment with 1,131.33 kilograms/ha/year, surpassing by 27.5% the production of SSA biotypes treatment of 821.26 kilograms. From  the results obtained in this research, the supplementation of grazing steers with by-products of agro-industry  becomes a productive activity to increasing GDP and meat production kg/ha, reflecting the potential of this practice as a valid strategy for the development of more efficient and competitive meat production systems for the humid Colombian Caribbean region.
publisher Universidad de Costa Rica
publishDate 2020
url https://revistas.ucr.ac.cr/index.php/nutrianimal/article/view/43767
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spelling oai:portal.ucr.ac.cr:article437672022-12-07T16:20:30Z Performance of three racial groups of grazing steers supplemented with agroindustrial by-products Desempeño de tres grupos raciales de novillos suplementados con subproductos agroindustriales en pastoreo Mestra-Vargas, Lorena Inés Reza-García, Sony Ramírez-Toro, Edison Julián Medina-Herrera, Diego alimentación de rumiantes Cynodon nlemfuensis ganado de carne ganancia de peso pastoreo rotacional ultrasonido ruminant feeding Cynodon nlemfuensis beef cattle weight gain rotational grazing ultrasound Performance of three racial groups of grazing steers supplemented with agroindustrial by-products. The main objective of this research was to evaluate the productive performance of three racial groups of steers, receiving or not supplementation with agro-industry by-products under grazing conditions in the humid Colombian Caribbean. Forty-eight steers: Angus x Brahman (AxB), Simmental x Brahman (SxB) and Romosinuano x Brahman (RxB) with average weight of 274± 13,76 kg and 17 months old  were randomly distributed to two types of feed management; with feed supplementation (CSA: 24 animals) and without  feed supplementation (SSA: 24 animals) in each breed group, using a complete randomized design (DCA). The supplementation consisted of a mix of rice bran (56.5%), cottonseed (43.5%) and mineralized salt (100 g/steer/day). The highest daily weight gain (GDP) was observed in the animals of the treatments AxB CSA, SxB CSA and RxB CSA (p= 0.001) with 730, 942 and 650 g/day respectively. The GDP of the animals AxB SSA, SxB SSA and RxB SSA, corresponded to  560, 520, and 608 g/animal/day. Regarding body composition by ultrasound measurements, the greater attributes of the ribeye area (p=0.0175) were observed for the AxB CSA (43.73 2.54 cm2) y RxB CSA treatments (45,51±2,34 cm2) and for the rump fat thickness (p=0.0229), the RxB CSA treatment (3.97 0.25 mm). The highest projected meat production kg/ha in a year, corresponded to the average for the biotypes of CSA treatment with 1,131.33 kilograms/ha/year, surpassing by 27.5% the production of SSA biotypes treatment of 821.26 kilograms. From  the results obtained in this research, the supplementation of grazing steers with by-products of agro-industry  becomes a productive activity to increasing GDP and meat production kg/ha, reflecting the potential of this practice as a valid strategy for the development of more efficient and competitive meat production systems for the humid Colombian Caribbean region. El principal objetivo de esta investigación fue evaluar el desempeño productivo de tres grupos raciales de novillos recibiendo o no suplementación con subproductos de la  agroindustria en condiciones de pastoreo en el caribe húmedo colombiano. Cuarenta y ocho novillos: Angus x Brahman (AxB), Simmental x Brahman (SXB) y Romosinuano x Brahman (RXB) con peso promedio de 274± 13,76 kg y 17 meses se distribuyeron aleatoriamente en dos tipos de manejo alimenticio; con suplementación alimenticia (CSA: 24 animales) y sin suplementación alimenticia (SSA: 24 animales) en cada grupo racial, usando un diseño completo al azar (DCA). La suplementación consistió de una mezcla de salvado de arroz (56,5%), semilla de algodón (43,5%) y sal mineralizada (100 g/animal/día). Las mayores ganancias diarias de peso (GDP) fueron observadas en los animales de los tratamientos AxB CSA, SxB CSA y RxB CSA (p=0,001) con 730, 942 y 650 g/animal/día,  respectivamente. Las GDP de los animales de los tratamientos AxB SSA, SxB SSA y RxB SSA correspondieron a 560, 520, y 608 g/animal/día. En cuanto a las mediciones de composición corporal por ultrasonido, los mayores atributos del área del ojo del lomo, (p=0,0175) lo presentaron los tratamientos AxB CSA (43,73±2,31 cm2) y RxB CSA (45,51±2,34 cm2) y para el espesor de grasa del anca (p=0,0229), el tratamiento RxB CSA (3,97 ± 0,32 mm). La mayor producción de carne, kg/ha proyectada a un año, correspondió al promedio de los biotipos CSA con 1.131,33 kg/ha/año, superando en 27,5% la producción de biotipos SSA de 821,26 kg. A partir de los resultados obtenidos en esta investigación, la suplementación de novillos en pastoreo con subproductos de la agroindustria se convierte en una actividad productiva para incrementar la GDP y producción de carne kg/ha, reflejando el potencial de esta práctica como una estrategia válida para el desarrollo de sistemas de producción de carne más eficientes y competitivos para la región del caribe húmedo colombiano.     Universidad de Costa Rica 2020-09-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Artículo application/pdf text/html audio/x-m4a https://revistas.ucr.ac.cr/index.php/nutrianimal/article/view/43767 10.15517/nat.v14i2.43767 Nutrición Animal Tropical Journal; Vol. 14 No. 2 (2020): Nutrición Animal Tropical: July-December; 51-74 Nutrición Animal Tropical; Vol. 14 Núm. 2 (2020): Nutrición Animal Tropical: Julio-diciembre; 51-74 2215-3527 10.15517/nat.v14i2 spa https://revistas.ucr.ac.cr/index.php/nutrianimal/article/view/43767/44026 https://revistas.ucr.ac.cr/index.php/nutrianimal/article/view/43767/44027 https://revistas.ucr.ac.cr/index.php/nutrianimal/article/view/43767/44028

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