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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
19/10/2018 |
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Actualizado : |
04/06/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CAZZULI, F.; LAGOMARSINO, X.; BOGGIANO, P.; SAADOUN, A.; MONTOSSI, F. |
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Afiliación : |
FIORELLA CARLA CAZZULI ALBA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; XIMENA MARIA LAGOMARSINO LARRIERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; P. BOGGIANO, Animal & Pastures Production Department, Agronomy Faculty, University of the Republic. Paysandú, Uruguay; A. SAADOUN, Physiology & Nutrition Department, Science Faculty, University of the Republic. Montevideo, Uruguay; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Self-feeding improved animal performance of calves grazing native grasslands during winter on extensive livestock production systems // El auto-suministro mejoró el desempeño de terneros pastoreando campo natural diferido en invierno en sistemas ganaderos extensivos. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Agro Sur, 2018, v. 46, no. 1, p. 29-39. DOI: https://doi.org/10.4206/agrosur.2018.v46n1-04 |
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ISSN : |
03048802 |
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DOI : |
10.4206/agrosur.2018.v46n1-04 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 30.05.2018; Accepted 29.08.2018. ACKNOWLEDGEMENTS: These experiments were financially supported by the National Institute of Agricultural Research (INIA Uruguay). The authors would like to thank all field staff who worked on both experimental sites, as well as the thesis committee for all their valuable inputs to this paper. We would also like to acknowledge the inputs made by Ignacio de Barbieri, Martín Jaurena, Zully Ra-mos and Daniela Correa. Corresponding author: Fiorella CazzuliE-mail address:fcazzuli@inia.org.uy |
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Contenido : |
Supplementing calves on deferred native grasslands during their first winter, helps overcoming the nutritive deficits which occur during this season. However, the demand of both qualification and availability of labour may restrain its adoption. The objective of this work was to evaluate calves? average daily live weight gain (ADG) and supplemental feed efficiency (SFE) as a response to self-feeding methods. Two experiments (Exp) were carried out: i) Exp A, on sandy soils with Braford calves
and, ii) Exp B on basaltic soils with Hereford calves. In each experiment 40 castrated male calves were used and randomly allotted to one of two replicates of these treatments: non-supplemented control (C); everyday restricted supplementation (E); restricted self-fed supplementation delivered two times a week (RSF); ad libitum self-fed (ASF). Exp A registered lowest ADG for C (0.155 kg an-1 day-1), similar ADG between E and RSF (0.623 kg an-1 day-1 on average) and highest for ASF (1.135 kg an-1 day-1) (p <0.05). For Exp B, ADG was affected being C ≤ E ≤ RSF < ASF (0.158, 0.390, 0.588 and 1.319 kg an-1 day-1, respectively). SFE values were not different (p >0.05) between treatments for Exp A, even though ASF presented a 50% higher SFE (9.4) than RSF (6.2) and E (6.1). SFE was affected (p <0.05), being ASF (7.7) < E = RSF (3.9 on average). It is possible to overcome winter live weight losses through the combination of deferred native grasslands and restricted self-feeding // La suplementación de terneros en su primer invierno pastoreando campo natural diferido compensa los déficits nutricionales registrados durante esta estación. No obstante, las necesidades de calificación y disponibilidad de mano de obra puede restringir su adopción. El objetivo de este trabajo fue evaluar la ganancia media diaria (GMD) y la eficiencia de uso del suplemento (EUS) como respuesta a métodos de auto-suministro. Se realizaron dos experimentos: i) Exp A, sobre suelos arenosos utilizando terneros Braford y, ii) Exp B, sobre suelos de basalto utilizando terneros Hereford. En cada experimento se utilizaron 40 machos castrados en su primer invierno y fueron asignados al azar a una de las dos repeticiones de estos tratamientos: testigo no suplementado (T); suplementación diaria restringida (DR); suplementados restringidamente dos veces por semana mediante auto-suministro (ASR); suplementados ad libitum mediante auto-suministro (ASA). En el Exp A se registró la menor GMD para T (0,155 kg an-1 día-1), similares valores entre DR y ASR (promedio 0,623 kg an-1 día-1) y la más alta para ASA (1,135 kg an-1
día-1) (p <0,05). Para el Exp B, la GMD fue afectada, siendo T ≤ DR ≤ ASR < ASA (0,158; 0,390; 0,588 and 1,319 kg an-1 día-1, respectivamente). EUS no fue afectada en Exp A (p >0,05), si bien ASA presentó valores 50% superiores que ASR (6,2) y que T (6,1). En el Exp B, EUS fue afectada (p <0,05), siendo ASR (7,7) < DR = ASR (3,9 promedio). Es posible superar las pérdidas peso mediante una combinación de diferimiento de forraje y auto-suministro restringido. MenosSupplementing calves on deferred native grasslands during their first winter, helps overcoming the nutritive deficits which occur during this season. However, the demand of both qualification and availability of labour may restrain its adoption. The objective of this work was to evaluate calves? average daily live weight gain (ADG) and supplemental feed efficiency (SFE) as a response to self-feeding methods. Two experiments (Exp) were carried out: i) Exp A, on sandy soils with Braford calves
and, ii) Exp B on basaltic soils with Hereford calves. In each experiment 40 castrated male calves were used and randomly allotted to one of two replicates of these treatments: non-supplemented control (C); everyday restricted supplementation (E); restricted self-fed supplementation delivered two times a week (RSF); ad libitum self-fed (ASF). Exp A registered lowest ADG for C (0.155 kg an-1 day-1), similar ADG between E and RSF (0.623 kg an-1 day-1 on average) and highest for ASF (1.135 kg an-1 day-1) (p <0.05). For Exp B, ADG was affected being C ≤ E ≤ RSF < ASF (0.158, 0.390, 0.588 and 1.319 kg an-1 day-1, respectively). SFE values were not different (p >0.05) between treatments for Exp A, even though ASF presented a 50% higher SFE (9.4) than RSF (6.2) and E (6.1). SFE was affected (p <0.05), being ASF (7.7) < E = RSF (3.9 on average). It is possible to overcome winter live weight losses through the combination of deferred native grasslands and restricted self-feeding // La... Presentar Todo |
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Palabras claves : |
BEEF CATTLE; GANADO DE CARNE; INFREQUENT SUPPLEMENTATION; NATIVE PASTURE; PASTURAS NATIVAS; SUPLEMENTACIÓN INFRECUENTE; SUPLEMENTO; SUPPLEMENT; URUGUAY. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 04777naa a2200313 a 4500
001 1059227
005 2020-06-04
008 2018 bl uuuu u00u1 u #d
022 $a03048802
024 7 $a10.4206/agrosur.2018.v46n1-04$2DOI
100 1 $aCAZZULI, F.
245 $aSelf-feeding improved animal performance of calves grazing native grasslands during winter on extensive livestock production systems // El auto-suministro mejoró el desempeño de terneros pastoreando campo natural diferido en invierno en sistemas ganaderos extensivos.$h[electronic resource]
260 $c2018
500 $aArticle history: Received 30.05.2018; Accepted 29.08.2018. ACKNOWLEDGEMENTS: These experiments were financially supported by the National Institute of Agricultural Research (INIA Uruguay). The authors would like to thank all field staff who worked on both experimental sites, as well as the thesis committee for all their valuable inputs to this paper. We would also like to acknowledge the inputs made by Ignacio de Barbieri, Martín Jaurena, Zully Ra-mos and Daniela Correa. Corresponding author: Fiorella CazzuliE-mail address:fcazzuli@inia.org.uy
520 $aSupplementing calves on deferred native grasslands during their first winter, helps overcoming the nutritive deficits which occur during this season. However, the demand of both qualification and availability of labour may restrain its adoption. The objective of this work was to evaluate calves? average daily live weight gain (ADG) and supplemental feed efficiency (SFE) as a response to self-feeding methods. Two experiments (Exp) were carried out: i) Exp A, on sandy soils with Braford calves and, ii) Exp B on basaltic soils with Hereford calves. In each experiment 40 castrated male calves were used and randomly allotted to one of two replicates of these treatments: non-supplemented control (C); everyday restricted supplementation (E); restricted self-fed supplementation delivered two times a week (RSF); ad libitum self-fed (ASF). Exp A registered lowest ADG for C (0.155 kg an-1 day-1), similar ADG between E and RSF (0.623 kg an-1 day-1 on average) and highest for ASF (1.135 kg an-1 day-1) (p <0.05). For Exp B, ADG was affected being C ≤ E ≤ RSF < ASF (0.158, 0.390, 0.588 and 1.319 kg an-1 day-1, respectively). SFE values were not different (p >0.05) between treatments for Exp A, even though ASF presented a 50% higher SFE (9.4) than RSF (6.2) and E (6.1). SFE was affected (p <0.05), being ASF (7.7) < E = RSF (3.9 on average). It is possible to overcome winter live weight losses through the combination of deferred native grasslands and restricted self-feeding // La suplementación de terneros en su primer invierno pastoreando campo natural diferido compensa los déficits nutricionales registrados durante esta estación. No obstante, las necesidades de calificación y disponibilidad de mano de obra puede restringir su adopción. El objetivo de este trabajo fue evaluar la ganancia media diaria (GMD) y la eficiencia de uso del suplemento (EUS) como respuesta a métodos de auto-suministro. Se realizaron dos experimentos: i) Exp A, sobre suelos arenosos utilizando terneros Braford y, ii) Exp B, sobre suelos de basalto utilizando terneros Hereford. En cada experimento se utilizaron 40 machos castrados en su primer invierno y fueron asignados al azar a una de las dos repeticiones de estos tratamientos: testigo no suplementado (T); suplementación diaria restringida (DR); suplementados restringidamente dos veces por semana mediante auto-suministro (ASR); suplementados ad libitum mediante auto-suministro (ASA). En el Exp A se registró la menor GMD para T (0,155 kg an-1 día-1), similares valores entre DR y ASR (promedio 0,623 kg an-1 día-1) y la más alta para ASA (1,135 kg an-1 día-1) (p <0,05). Para el Exp B, la GMD fue afectada, siendo T ≤ DR ≤ ASR < ASA (0,158; 0,390; 0,588 and 1,319 kg an-1 día-1, respectivamente). EUS no fue afectada en Exp A (p >0,05), si bien ASA presentó valores 50% superiores que ASR (6,2) y que T (6,1). En el Exp B, EUS fue afectada (p <0,05), siendo ASR (7,7) < DR = ASR (3,9 promedio). Es posible superar las pérdidas peso mediante una combinación de diferimiento de forraje y auto-suministro restringido.
653 $aBEEF CATTLE
653 $aGANADO DE CARNE
653 $aINFREQUENT SUPPLEMENTATION
653 $aNATIVE PASTURE
653 $aPASTURAS NATIVAS
653 $aSUPLEMENTACIÓN INFRECUENTE
653 $aSUPLEMENTO
653 $aSUPPLEMENT
653 $aURUGUAY
700 1 $aLAGOMARSINO, X.
700 1 $aBOGGIANO, P.
700 1 $aSAADOUN, A.
700 1 $aMONTOSSI, F.
773 $tAgro Sur, 2018$gv. 46, no. 1, p. 29-39. DOI: https://doi.org/10.4206/agrosur.2018.v46n1-04
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
28/09/2018 |
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Actualizado : |
09/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
LOPES, R.B.; CANOZZI, M.E.A.; CANELLAS, L.C; GONZALEZ, F.A.L.; CORRÊA, R.F.; PEREIRA, P.R.R.X; BARCELLOS, J.O.J. |
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Afiliación : |
RÚBIA BRANCO LOPES, Department of Animal Science, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul,Brazil.; MARIA EUGÊNIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; LEONARDO CANALLI CANELLAS, Department of Animal Science, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.; FREDY ANDREY LOPEZ GONZALEZ, Department of Animal Science, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul,Brazil.; RICARDO FARIA CORRÊA, Department of Production and Transportation Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.; PAULO RODRIGO RAMOS XAVIER PEREIRA, Department of Agronomy, Federal University of Piauí, Bom Jesus, Brazil.; JÚLIO OTÁVIO JARDIM BARCELLOS, Department of Animal Science, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul,Brazil. |
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Título : |
Bioeconomic simulation of compensatory growth in beef cattle production systems. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Livestock Science, October 2018, v.216,p.165-173. |
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DOI : |
10.1016/j.livsci.2018.08.011 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 20 December 2017//Revised 23 August 2018// Accepted 23 August 2018 // Available online 24 August 2018. |
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Contenido : |
Abstract: The manipulation of growth can be used as a strategy to reduce feeding costs. The objective of this study was to analyze, by deterministic and stochastic simulation, compensatory growth effects on the bioeconomic results of growing-finishing beef cattle systems. Four beef cattle systems were simulated with different feed restriction periods (no restriction, CONT; 90 days of restriction, COMP90; 120 days of restriction, COMP120; and 150 days of restriction, COMP150). Risk analysis was performed using the Monte Carlo method. Animals in feed restriction systems demonstrated partial compensation and required longer periods to achieve slaughter weight than CONT steers (16, 23 and 27 more days for COMP90, COMP120 and COMP150, respectively). The CONT system was the most productive (466 kg/ha/year), followed by COMP90 (443 kg/ha/year), COMP120 (432 kg/ha/year), and COMP150 (383 kg/ha/year). The most profitable system was the COMP90 system (US$ 161/ha) followed by the CONT (US$ 144/ha). The lower net margin was observed in the COMP120 (US$ 107/ha) and COMP150 (US$ 90/ha) systems. The risk analysis showed that COMP90 presented the highest financial stability. For all simulated systems, prices of finished steers, feeder calves, and corn were the variables with the greatest effects on net margin. The use of compensatory growth can be a tool to reduce feeding costs in beef cattle systems; however, the feed restriction must not be longer than three months. |
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Palabras claves : |
COMPENSATION; COMPENSATORY GAIN; COMPENSATORY INDEX; CRECIMIENTO COMPENSATORIO; SISTEMAS DE PRODUCCIÓN DE GANADO VACUNO; STOCHASTIC SIMULATION. |
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Thesagro : |
BOVINO DE CARNE. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 02504naa a2200301 a 4500
001 1059090
005 2019-10-09
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.livsci.2018.08.011$2DOI
100 1 $aLOPES, R.B.
245 $aBioeconomic simulation of compensatory growth in beef cattle production systems.$h[electronic resource]
260 $c2018
500 $aArticle history: Received 20 December 2017//Revised 23 August 2018// Accepted 23 August 2018 // Available online 24 August 2018.
520 $aAbstract: The manipulation of growth can be used as a strategy to reduce feeding costs. The objective of this study was to analyze, by deterministic and stochastic simulation, compensatory growth effects on the bioeconomic results of growing-finishing beef cattle systems. Four beef cattle systems were simulated with different feed restriction periods (no restriction, CONT; 90 days of restriction, COMP90; 120 days of restriction, COMP120; and 150 days of restriction, COMP150). Risk analysis was performed using the Monte Carlo method. Animals in feed restriction systems demonstrated partial compensation and required longer periods to achieve slaughter weight than CONT steers (16, 23 and 27 more days for COMP90, COMP120 and COMP150, respectively). The CONT system was the most productive (466 kg/ha/year), followed by COMP90 (443 kg/ha/year), COMP120 (432 kg/ha/year), and COMP150 (383 kg/ha/year). The most profitable system was the COMP90 system (US$ 161/ha) followed by the CONT (US$ 144/ha). The lower net margin was observed in the COMP120 (US$ 107/ha) and COMP150 (US$ 90/ha) systems. The risk analysis showed that COMP90 presented the highest financial stability. For all simulated systems, prices of finished steers, feeder calves, and corn were the variables with the greatest effects on net margin. The use of compensatory growth can be a tool to reduce feeding costs in beef cattle systems; however, the feed restriction must not be longer than three months.
650 $aBOVINO DE CARNE
653 $aCOMPENSATION
653 $aCOMPENSATORY GAIN
653 $aCOMPENSATORY INDEX
653 $aCRECIMIENTO COMPENSATORIO
653 $aSISTEMAS DE PRODUCCIÓN DE GANADO VACUNO
653 $aSTOCHASTIC SIMULATION
700 1 $aCANOZZI, M.E.A.
700 1 $aCANELLAS, L.C
700 1 $aGONZALEZ, F.A.L.
700 1 $aCORRÊA, R.F.
700 1 $aPEREIRA, P.R.R.X
700 1 $aBARCELLOS, J.O.J.
773 $tLivestock Science, October 2018$gv.216,p.165-173.
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