Autor(es): Santarosa, Bianca Paola [UNESP] ; Da Silva Branchini, Naiana [UNESP] ; Ferreira, Danilo Otávio Laurenti ; Surian, Soraya Regina Sacco ; Dabus, Daniela Marques Maciel [UNESP] ; Hooper, Henrique Barbosa ; Coelho, Matheus Ribeiro ; Fioratti, Eduardo Gorzoni ; Lopes, Raimundo Souza [UNESP] ; Gonçalves, Roberto Calderon [UNESP]
Data: 2022
Identificador Persistente: http://hdl.handle.net/11449/233715
Origem: Oasisbr
Assunto(s): Feedlot; Kidney; Sheep; Urinary obstruction; Urolithiasis
Made available in DSpace on 2022-05-01T09:47:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-05
Obstructive urolithiasis is common in confined sheep, and a predominant factor predisposing animals to this condition is nutritional management. The objective of this study was to evaluate the effect of different concentrations of phosphorus (P) on urinalysis, serum urea and creatinine, and serum and urine concentrations of calcium (Ca), P, and magnesium (Mg), as well as to establish the fractional excretion (FE) of these elements in confined lambs. Thirty male Santa Inês x Ile de France sheep at four months of age were divided into two groups according to the diet: Group 1 (G1, n = 15), with 0.43% P in their feed; and Group 2 (G2, n = 15) with 0.65% P. The diets consisting of 10% Coast-cross hay and 90% of a concentrate of soybean meal, wheat, and crushed corn were provided for 90 consecutive days, with water ad libitum. The time points (M) of blood and urine collection were determined as M0, immediately before the beginning of the diet, and at 15-day intervals: M1, M2, M3, M4, M5, and M6. Phosphorous-rich diets favored the appearance of triple phosphate crystals in both groups, causing calculogenesis in more than one third of the animals (11/30), emphasizing the relevance of conducting laboratory tests to aid in urolithiasis diagnosis. In addition, FE revealed an increased renal excretion of excess minerals in the diet, and therefore a greater predisposition for stone formation in relation to nutritional management.
Instituto de Ciências Agrárias (ICA) Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), MG
Faculdade de Medicina Veterinária e Zootecnia (FMVZ) Universidade Estadual Paulista (UNESP), SP
Secretaria da Agricultura e Abastecimento do estado de São Paulo Defesa Agropecuária do estado de São Paulo, SP
Instituto Federal de Educação Ciência e Tecnologia Catarinense, SC
Faculdade de Zootecnia e Engenharia de Alimentos (FZEA) Universidade de São Paulo (USP), SP
Faculdade de Medicina Veterinária e Zootecnia (FMVZ) Universidade Estadual Paulista (UNESP), SP
