Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Colegio de Postgraduados (1) Arq. Bras. Med. Vet. Zootec. (1) Neotropical Entomology (1) Autor Cresoni-Pereira,Carla (1) Hernandez-Mendo,O. (1) Leaver,J.D. (1) Velázquez Martínez, Mauricio (1) Zucoloto,Fernando S. (1) Palavra-chave Diet selection (3) Comportamiento del pastoreo (1) Concentrate (1) Diversidad de plantas (1) Feeding behavior (1) Foraging behavior (1) Fruit fly (1) Ganadería (1) Ganancia de peso (1) Heifers (1) Maestría (1) Milking cow (1) Plant diversity (1) Selección de dieta (1) Sward height (1) Terneras (1) Weight gain (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Tesis (1) Ano 2010 (1) 2008 (1) 2005 (1) País Brazil (2) Mexico (1) Idioma Inglês (2) Espanhol (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Choice of grazed herbage or maize silage by lactating dairy cows: influence of sward height and concentrate level Arq. Bras. Med. Vet. Zootec. Hernandez-Mendo,O.; Leaver,J.D.. The preference of lactating dairy cows for grazed herbage or maize silage (MS), simultaneously offered ad libitum in the field, was examined at two sward heights (SH 4-6 and 8-10cm) and two concentrate levels (CL 0 and 6kg day-1) in a 2x2 factorial arrangement within a completely randomised experimental design. The experiment lasted 35 days and was carried out in spring using 24 multiparous Holstein Friesian cows. On average, the cows proportionately spent more time grazing than eating MS (0.85:0.15) and even though the higher rate of intake (RI) of dry matter (DM) of MS compared with grazed herbage (76 versus 26g DM min-1), the proportion of total DM intake as herbage was higher compared to that of MS (0.56:0.44). The higher crude protein and low fibre... Tipo: Info:eu-repo/semantics/article Palavras-chave: Milking cow; Diet selection; Concentrate; Sward height. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000500019 Composición de la dieta y conducta del pastoreo de terneras (Bos taurus x Bos indicus) en un sitio con vegetación secundaria en el norte de Veracruz Colegio de Postgraduados Velázquez Martínez, Mauricio. Se estudió el comportamiento del pastoreo, selección de la dieta y ganancia de peso de terneras (sin y con modelos sociales) en un sitio con alta diversidad de especies de plantas. El estudio se llevo acabo en un ecosistema tropical que contenía una mezcla de zacates, herbáceas hoja ancha, vegetación leñosa y semileñosa. Diez terneras Bos taurus x Bos indicus (6 a 8 meses de edad) fueron asignadas aleatoriamente a uno de dos tratamientos: terneras sin experiencia (T1; n=5) con peso de 131.4 ± 14.1 kg, y terneras sin experiencia (T2; n=5) con peso de 129.6 ± 6.4 kg acompañadas por dos modelos sociales (16 meses de edad) con peso de 153.3 ± 4.1. Cada grupo de animales pastorearon en potreros separados durante un periodo de 12 semanas, y los animales... Tipo: Tesis Palavras-chave: Terneras; Comportamiento del pastoreo; Selección de dieta; Ganancia de peso; Diversidad de plantas; Maestría; Ganadería; Heifers; Foraging behavior; Diet selection; Weight gain; Plant diversity. Ano: 2008 URL: http://hdl.handle.net/10521/1413 The presence of the sexual partner and nutritional condition alter the Anastrepha obliqua MacQuart (Diptera: Tephritidae) protein discrimination threshold Neotropical Entomology Cresoni-Pereira,Carla; Zucoloto,Fernando S.. The minimum protein amount that Anastrepha obliqua MacQuart can detect in its alimentary source is variable, though the causes of such variation are not very well known. In this study, the authors tested whether the sexual partners nutritional condition and presence devoid of direct contact alter the A. obliqua protein discrimination threshold. Male and female insects were assigned to groups as follows: (i) newly emerged, (ii) deprived of protein source (yeast) during 18 days, (iii) non-yeast-deprived during 18 days, (iv) yeast-deprived in the presence of equally yeast-deprived sexual partners, (v) yeast-deprived in the presence of non-yeast-deprived partners, (vi) non-yeast-deprived with yeast-deprived partners and (vii) non-yeast-deprived with... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diet selection; Fruit fly; Feeding behavior. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000600004 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco