Evaluation of an inexpensive needle test for the diagnosis of phosphorus deficiency and management of phosphorus supplementation for cattle: A multiple case study
Document title: Evaluation of an inexpensive needle test for the diagnosis of phosphorus deficiency and management of phosphorus supplementation for cattle: A multiple case study
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000435619
ISSN: 0001-3765
Authors: 1
2
2
3
4
5
6
Institutions: 1Universidade Federal Rural do Rio de Janeiro, Departamento de Nutricao Animal e Pastagens, Seropedica, Rio de Janeiro. Brasil
2Universidade Federal Rural do Rio de Janeiro, Programa de Pos-Graduacao em Zootecnia, Seropedica, Rio de Janeiro. Brasil
3Universidade Estadual Paulista "Julio de Mesquita Filho", Departamento de Zootecnia, Jaboticabal, Sao Paulo. Brasil
4Universidade do Vale do Rio Verde, Tres Coracoes, Minas Gerais. Brasil
5Kansas State University, Beef Cattle Research Center, Manhattan, Kansas. Estados Unidos de América
6Universidade Federal Rural do Rio de Janeiro, Hospital Veterinario, Seropedica, Rio de Janeiro. Brasil
Year:
Season: Dic
Volumen: 90
Number: 4
Pages: 3337-3352
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract The needle test (NT) is a point-of-care test developed in Brazil to evaluate the Phosphorus (P) status in cattle. Based on bone resistance, the NT is a very inexpensive method which allows the diagnosis of any degree of P deficiency in a fast and simple way in vivo and directly on farm. The NT measures three levels of resistance in the transverse process (TP) of the lumbar vertebrae: a) TP that are impenetrable and result in warping of the needle (P healthy animals); b) TP offering some resistance to the penetration (animals with subclinical P deficiency); and c) TP which has minimal resistance to penetration (clinical P deficiency). This manuscript presents results from a series of case studies to evaluate the hypothesis that the NT could be used to assess P status in cattle and assesses the usefulness of results to support decision making on mineral supplementation strategies for grazing cattle. The NT was able to detect the changes in the resistance patterns of the TP, as there was reduction or elevation of P levels in the mineral mixtures. The NT was useful to assist in decision-making for adoption of mineral supplementation strategies better suited for each farm, helping farmers to save money and avoid unnecessary waste of P
Disciplines: Medicina veterinaria y zootecnia
Keyword: Bovinos,
Nutrición animal,
Ganado de engorda,
Ganado lechero,
Deficiencia mineral,
Fósforo,
Suplementación mineral
Keyword: Bovines,
Animal nutrition,
Beef cattle,
Dairy cattle,
Mineral deficiency,
Phosphorus,
Mineral supplementation
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