التفاصيل البيبلوغرافية
| العنوان: |
Aspectós clínicos, parasitólógicos e produtivos de ovinos mantidos em pastagem de capim-aruana irrigado e adubado com diferentes doses de nitrogênio. |
| المؤلفون: |
Nogueiral, Daniel Maia, Mistura, Claudio, Turco, Silvia Helena Nogueira, Voltolini, Tadeu Vinhas, de Araújo, Gherman Garcia Leal, de Souza, Toni Carvalho |
| المصدر: |
Acta Scientiarum: Animal Sciences; Apr-Jun2011, Vol. 33 Issue 2, p175-181, 7p |
| الملخص (بالإنجليزية): |
Clinical, parasitological and productive evaluation of lambs under pasture of Aruana grass irrigated and fertilized with different doses of nitrogen. This work aimed to evaluate clinical, parasitological and productive parameters of crossbred lambs under a rotational grazing system of Pan icu in tnaxhniim cv. Aruana grass fertilized with four doses of nitrogen (75, 275, 475 and 675 kg ha-1 year-1). Eighteen lambs were used per treatment, totaling 72 animals. The following parameters were evaluated: daily weight gain (DWG), total weight gain (TWG), stocking rate (SR), meat production, number of fecal eggs per gram (EPG) and coproculture. Deworming was accomplished according to conjunctiva color compared using the FamachaC card. DWG and TWG were greater (p < 0.05) in the animals under pasture fertilized with 75 kg ha1 year'. However, SR and EPG were greater (p < 0.05) in the animals kept in pastures with 675 kg ha1 year'. There were no significant differences among nitrogen levels for the different colors of ocular mucosa or the number of animals dewormed. A prevalence of 80.0 to 93.0% of Trichostrongylus sp. was found. The deworming based on the evaluation of conjunctiva color did not reduce EPG into desirable levels for any of fertilized doses of nitrogen. The nitrogen dose of 475 kg ha-1 year' in Aruana grass allowed greater productive performance per hectare. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): |
Esse trabaiho objetivou avaliar os aspectos clínicos, parasitológicos e produtivos de cordeiros mestiços mantidos em pastejo rotativo de Pan icuin tnaxinunn cv. Aruana adubado corn quatro doses de nitrogénio (75, 275, 475 e 675 kg hat ano-1). Foram utilizados 18 cordeiros por tratamento, perfazendo urn total de 72 animais. Forarn avaliados os seguintes parârnetros: ganho médio diário (GMD), ganho de peso total (GPT), taxa de lotaçao (TxL), produçao total de came, contagem do nürnero de ovos por grama de fezes (OPG) e coprocultura. A verrnifugação dos animais fol realizada de acordo corn a coloração da mucosa ocular comparada por rneio do cartção Farnacha©. Foi verificado que tanto o GMD quanto o GPT forarn maiores (p < 0,05) nos animais mantidos tia pastagern corn adubação nitrogenada 75 kg ha-1 ano-1. Todavia, a TxL e o OPG forarn major (p <0,05) nos animais rnantidos na pastagern adubada corn 675 kg ha1 ano'. Não houve diferença significativa entre as doses de adubaçao para os diferentes tons de coloração da rnucosa ocular oem para o nürnero de anirnais verrnifugados. Observou-se urna prevalencia de 80,0 a 93,0% de larvas de Trichostrongylus sp. A vermifugação baseada na avaliação da mucosa ocular não permitiu a reduçao do OPG para nenhuma das doses de adubaçao adotadas. A dose de nitrogênio de 475 kg ha-1 ano-1 prornoveu meihor desempenho produtivo por hectare. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
