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| Registros recuperados: 43 | |
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| Gonçalves,Ana Paula; Nascimento,Carolina Fernanda Moysés do; Ferreira,Fernanda Altieri; Gomes,Rodrigo da Costa; Manella,Marcelo de Queiroz; Marino,Carolina Tobias; Demarchi,João José Assumpção de Abreu; Rodrigues,Paulo Henrique Mazza. |
| Replacing regular urea (RU) by slow-release urea (SRU) at two levels of non-protein nitrogen (NPN) in concentrate, offered with low-quality roughage, was evaluated in beef steers on dry matter intake (DMI), ruminal fermentation parameters, plasma urea nitrogen (PUN), total tract apparent digestibility of diets and in situ degradability of nitrogen sources. Eight ruminally cannulated steers were allocated into two 4x4 Latin squares, totalizing four treatments: 40 NPN/0 SRU: 40% of concentrate crude protein (CP) as NPN, resulting from 0% of SRU and 100% of RU; 40 NPN/50 SRU: 40% of concentrate CP as NPN, resulting from 50% of SRU and 50% of RU; 40 NPN/100 SRU: 40% of concentrate CP as NPN, resulting from 100% of SRU and 0% of RU; 80 NPN/100 SRU: 80% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Controlled release; Feed intake; Non-protein nitrogen; Short chain fatty acids. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100022 |
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| Silva,José Gledyson da; Queiroz,Mário Adriano Ávila; Araujo,Gherman Garcia Leal; Silva,Bruno Gonçalves da; Cunha,José Aparecido da; Rodrigues,Paulo Henrique Mazza. |
| Objetivou-se com o presente estudo avaliar diferentes níveis (0, 20, 40 e 60%) de inclusão de erva-sal na dinâmica fermentativa da silagem de cana-de-açúcar. Utilizou-se delineamento experimental inteiramente casualizado com quatro tratamentos e seis repetições. Após 90 dias, com a abertura dos silos, determinou-se os teores de carboidratos solúveis (CHO-Sol), etanol, ácidos orgânicos (lático, acético, propiônico, butírico), proteína bruta (PB), matéria mineral (MM), matéria seca (MS), fibra em detergente neutro livre de cinzas (FDNc), pH e poder tampão (PT); estimou-se a perda total de MS, perdas por efluente e gases, densidade e a recuperação da MS. Os níveis crescentes de erva-sal propiciaram diminuição das perdas totais de MS e por efluente, aumento de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atriplex nummularia; Conservação de forragem; Fermentação alcoolica. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000300027 |
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| Fonseca,Luís Fernando Laranja da; Rodrigues,Paulo Henrique Mazza; Santos,Marcos Veiga dos; Lima,André Pinto; Lucci,Carlos de Sousa. |
| The objective of this study was to analyse the effects of propylene glycol (PPG) supplementation to periparturient cows on: milk yield, changes in body condition score (BCS), days to first oestrus after calving, and on the beta-hydroxybutyrate (BHBA), non-esterefied fatty acids (NEFA) and glucose concentrations. Twenty-three Holstein cows were distributed into two treatments: a) 300 mL of PPG (group treatment, 11 cows), b) 300 mL of water (group control, 12 cows), administered via drench in periparturient period. BCS was evaluated on days -10, 0, 15, 30, 45 and 60 relative to calving date. There was no effect of treatment or time on milk yield, although the interaction of time*treatment was significant and during the 4th and 5th week of lactation, milk... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy cow; Propylene glycol; Milk yield; Body condition score; Reproductive performance. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000300037 |
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| Registros recuperados: 43 | |
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