Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter
The aim of this study was to evaluate the performance of beef heifers in natural grassland under continuous and rotational grazing during the autumn-winter period. The treatments were distributed in a completely randomized design and conducted using the forage mass above eight cm and 50% of the leaf blades mass of tussocks. The animals were Brangus beef heifers with initial body weight of 258kg. The variables evaluated were available forage mass (FMa), leaf blades mass of tussocks (LBMt), real forage allowance (FAr), sward height of the lower stratum (HLS), crude protein (CP), neutral detergent fiber (NDF), organic matter digestibility (OMD), total digestible nutrients (TDN), average daily gain (ADG), body condition score (BCS), reproductive tract score (RTS) and stocking rate (SR). FMa, HLS, OMD and TDN decreased while FAr, CP and NDF were similar during the experimental period. The ADG was positive only at third experimental period while BCS, RTS and SR decreased over time. The natural grassland management under continuous and rotational grazing during the autumn-winter period, using the forage mass above 8cm and 50% of the leaf blades mass of tussocks, does not allow the adequate corporal development for breeding the beef heifers at 24 months old.
Main Authors: | , , , , , , , , |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Universidade Federal de Santa Maria
2015
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001859 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
oai:scielo:S0103-84782015001001859 |
---|---|
record_format |
ojs |
spelling |
oai:scielo:S0103-847820150010018592016-02-26Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winterSoares,Émerson MendesQuadros,Fernando Luiz Ferreira deCarvalho,Régis Maximiliano Roos deOliveira,Leandro Bittencourt deJochims,FelipeDutra,Gabriela MachadoFernandes,Augusto MirandaTrindade,José Pedro PereiraIlha,Gustavo Freitas Pampa biome reproductive tract score grazing methods heifers rearing sward height. The aim of this study was to evaluate the performance of beef heifers in natural grassland under continuous and rotational grazing during the autumn-winter period. The treatments were distributed in a completely randomized design and conducted using the forage mass above eight cm and 50% of the leaf blades mass of tussocks. The animals were Brangus beef heifers with initial body weight of 258kg. The variables evaluated were available forage mass (FMa), leaf blades mass of tussocks (LBMt), real forage allowance (FAr), sward height of the lower stratum (HLS), crude protein (CP), neutral detergent fiber (NDF), organic matter digestibility (OMD), total digestible nutrients (TDN), average daily gain (ADG), body condition score (BCS), reproductive tract score (RTS) and stocking rate (SR). FMa, HLS, OMD and TDN decreased while FAr, CP and NDF were similar during the experimental period. The ADG was positive only at third experimental period while BCS, RTS and SR decreased over time. The natural grassland management under continuous and rotational grazing during the autumn-winter period, using the forage mass above 8cm and 50% of the leaf blades mass of tussocks, does not allow the adequate corporal development for breeding the beef heifers at 24 months old.info:eu-repo/semantics/openAccessUniversidade Federal de Santa MariaCiência Rural v.45 n.10 20152015-10-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001859en10.1590/0103-8478cr20141529 |
institution |
SCIELO |
collection |
OJS |
country |
Brasil |
countrycode |
BR |
component |
Revista |
access |
En linea |
databasecode |
rev-scielo-br |
tag |
revista |
region |
America del Sur |
libraryname |
SciELO |
language |
English |
format |
Digital |
author |
Soares,Émerson Mendes Quadros,Fernando Luiz Ferreira de Carvalho,Régis Maximiliano Roos de Oliveira,Leandro Bittencourt de Jochims,Felipe Dutra,Gabriela Machado Fernandes,Augusto Miranda Trindade,José Pedro Pereira Ilha,Gustavo Freitas |
spellingShingle |
Soares,Émerson Mendes Quadros,Fernando Luiz Ferreira de Carvalho,Régis Maximiliano Roos de Oliveira,Leandro Bittencourt de Jochims,Felipe Dutra,Gabriela Machado Fernandes,Augusto Miranda Trindade,José Pedro Pereira Ilha,Gustavo Freitas Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter |
author_facet |
Soares,Émerson Mendes Quadros,Fernando Luiz Ferreira de Carvalho,Régis Maximiliano Roos de Oliveira,Leandro Bittencourt de Jochims,Felipe Dutra,Gabriela Machado Fernandes,Augusto Miranda Trindade,José Pedro Pereira Ilha,Gustavo Freitas |
author_sort |
Soares,Émerson Mendes |
title |
Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter |
title_short |
Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter |
title_full |
Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter |
title_fullStr |
Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter |
title_full_unstemmed |
Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter |
title_sort |
beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter |
description |
The aim of this study was to evaluate the performance of beef heifers in natural grassland under continuous and rotational grazing during the autumn-winter period. The treatments were distributed in a completely randomized design and conducted using the forage mass above eight cm and 50% of the leaf blades mass of tussocks. The animals were Brangus beef heifers with initial body weight of 258kg. The variables evaluated were available forage mass (FMa), leaf blades mass of tussocks (LBMt), real forage allowance (FAr), sward height of the lower stratum (HLS), crude protein (CP), neutral detergent fiber (NDF), organic matter digestibility (OMD), total digestible nutrients (TDN), average daily gain (ADG), body condition score (BCS), reproductive tract score (RTS) and stocking rate (SR). FMa, HLS, OMD and TDN decreased while FAr, CP and NDF were similar during the experimental period. The ADG was positive only at third experimental period while BCS, RTS and SR decreased over time. The natural grassland management under continuous and rotational grazing during the autumn-winter period, using the forage mass above 8cm and 50% of the leaf blades mass of tussocks, does not allow the adequate corporal development for breeding the beef heifers at 24 months old. |
publisher |
Universidade Federal de Santa Maria |
publishDate |
2015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001859 |
work_keys_str_mv |
AT soaresemersonmendes beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT quadrosfernandoluizferreirade beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT carvalhoregismaximilianoroosde beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT oliveiraleandrobittencourtde beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT jochimsfelipe beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT dutragabrielamachado beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT fernandesaugustomiranda beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT trindadejosepedropereira beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter AT ilhagustavofreitas beefheifersperformanceinnaturalgrasslandundercontinuousandrotationalgrazingintheautumnwinter |
_version_ |
1756406323605405696 |