Nutritive value of Tanzania grass for dairy cows under rotational grazing

A nutritional analysis of Tanzania grass (Megathyrsus maximusJacquin cv. Tanzânia was conducted. Pasture was managed in a rotational grazing system with a 30-day resting period, three days of paddock occupation and two grazing cycles. Ten Holstein × Zebu crossbred cows were kept within a 2-ha area divided into 11 paddocks ha-1. Cows were fed 2 kg of corn meal daily and performance was evaluated by weighing the animals every 14 days and by recording milk production twice a day. Nutritional composition of the Tanzania grass was determined from forage (extrusa) samples collected by esophageal fistulae from two animals. The nutritive value of Tanzania grass was estimated according to a modification of the CNCPS evaluation model. Tanzania grass supplemented with 2 kg of corn meal supplied 33.2% more net energy for lactation than required by the animals to produce 13.7 kg of milk day-1. Nevertheless, the amount of metabolizable protein met the daily protein requirement of the animals. Although the model used in the study requires adjustments, Tanzania grass has the potential to produce milk in a rotational grazing system.

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Main Authors: Fernandes,Alberto Magno, Deresz,Fermino, Henrique,Douglas Sampaio, Lopes,Fernando César Ferraz, Glória,Leonardo Siqueira
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Zootecnia 2014
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800410
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spelling oai:scielo:S1516-359820140008004102015-09-23Nutritive value of Tanzania grass for dairy cows under rotational grazingFernandes,Alberto MagnoDeresz,FerminoHenrique,Douglas SampaioLopes,Fernando César FerrazGlória,Leonardo Siqueira animal performance dairy cows tropical pastures A nutritional analysis of Tanzania grass (Megathyrsus maximusJacquin cv. Tanzânia was conducted. Pasture was managed in a rotational grazing system with a 30-day resting period, three days of paddock occupation and two grazing cycles. Ten Holstein × Zebu crossbred cows were kept within a 2-ha area divided into 11 paddocks ha-1. Cows were fed 2 kg of corn meal daily and performance was evaluated by weighing the animals every 14 days and by recording milk production twice a day. Nutritional composition of the Tanzania grass was determined from forage (extrusa) samples collected by esophageal fistulae from two animals. The nutritive value of Tanzania grass was estimated according to a modification of the CNCPS evaluation model. Tanzania grass supplemented with 2 kg of corn meal supplied 33.2% more net energy for lactation than required by the animals to produce 13.7 kg of milk day-1. Nevertheless, the amount of metabolizable protein met the daily protein requirement of the animals. Although the model used in the study requires adjustments, Tanzania grass has the potential to produce milk in a rotational grazing system.info:eu-repo/semantics/openAccessSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia v.43 n.8 20142014-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800410en10.1590/S1516-35982014000800003
institution SCIELO
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country Brasil
countrycode BR
component Revista
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databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Fernandes,Alberto Magno
Deresz,Fermino
Henrique,Douglas Sampaio
Lopes,Fernando César Ferraz
Glória,Leonardo Siqueira
spellingShingle Fernandes,Alberto Magno
Deresz,Fermino
Henrique,Douglas Sampaio
Lopes,Fernando César Ferraz
Glória,Leonardo Siqueira
Nutritive value of Tanzania grass for dairy cows under rotational grazing
author_facet Fernandes,Alberto Magno
Deresz,Fermino
Henrique,Douglas Sampaio
Lopes,Fernando César Ferraz
Glória,Leonardo Siqueira
author_sort Fernandes,Alberto Magno
title Nutritive value of Tanzania grass for dairy cows under rotational grazing
title_short Nutritive value of Tanzania grass for dairy cows under rotational grazing
title_full Nutritive value of Tanzania grass for dairy cows under rotational grazing
title_fullStr Nutritive value of Tanzania grass for dairy cows under rotational grazing
title_full_unstemmed Nutritive value of Tanzania grass for dairy cows under rotational grazing
title_sort nutritive value of tanzania grass for dairy cows under rotational grazing
description A nutritional analysis of Tanzania grass (Megathyrsus maximusJacquin cv. Tanzânia was conducted. Pasture was managed in a rotational grazing system with a 30-day resting period, three days of paddock occupation and two grazing cycles. Ten Holstein × Zebu crossbred cows were kept within a 2-ha area divided into 11 paddocks ha-1. Cows were fed 2 kg of corn meal daily and performance was evaluated by weighing the animals every 14 days and by recording milk production twice a day. Nutritional composition of the Tanzania grass was determined from forage (extrusa) samples collected by esophageal fistulae from two animals. The nutritive value of Tanzania grass was estimated according to a modification of the CNCPS evaluation model. Tanzania grass supplemented with 2 kg of corn meal supplied 33.2% more net energy for lactation than required by the animals to produce 13.7 kg of milk day-1. Nevertheless, the amount of metabolizable protein met the daily protein requirement of the animals. Although the model used in the study requires adjustments, Tanzania grass has the potential to produce milk in a rotational grazing system.
publisher Sociedade Brasileira de Zootecnia
publishDate 2014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800410
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