Microbial protein synthesis and nitrogen metabolism in goats

This study aimed to estimate the microbial protein synthesis by purine derivatives method and to evaluate blood and urinary nitrogen metabolism in the semiarid region. The supplementation was based on 1% of body weight in dry matter. The treatments were: PA= free grazing without supplementation; LEU...

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Published inOBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA Vol. 23; no. 5; p. e9915
Main Authors Costa, Izabelle Crystine Almeida, Santos, Gladston Rafael de Arruda, Silva, Dulciene Karla de Andrade, Pereira, Kedes Paulo, Lima, Jucelane Salvino de, Peixôto, Thaise Virgínia Freire Ramos, Cabral Junior, Cyro Rego, Nascimento, Thiago Vinicius Costa
Format Journal Article
LanguageEnglish
Published 16.05.2025
Subjects
Caatinga
Derivados de Purina
Legumes
Leguminosa
Purine Derivatives
Ruminantes
Ruminants
Urea
Ureia
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Summary:This study aimed to estimate the microbial protein synthesis by purine derivatives method and to evaluate blood and urinary nitrogen metabolism in the semiarid region. The supplementation was based on 1% of body weight in dry matter. The treatments were: PA= free grazing without supplementation; LEU = leucaena hay (Leucaena leucocephala (Lam) from Wit.); LEU+P= leucaena hay + forage cactus (Nopalea cochenillifera - Salm Dyck); SAB= “sabiá” hay (Mimosa caesalpinifolia Benth); and SAB+P= “sabiá” hay + small forage cactus. Purine derivatives and, consequently, absorbed purines, nitrogen and microbial protein showed a significant difference (P<0.05) among treatments, also it was presented that supplementations with leucaena hay without and with small cactus had higher averages. Urea and plasma nitrogen showed significant differences (P<0.05) between treatments with higher values for the treatment with leucaena hay and “sabiá” hay. Urea and urea nitrogen did not show significant difference (P>0.05) between treatments. However, supplementation with leucaena hay for goats on pasture in the Caatinga promotes greater microbial protein synthesis between treatments. The blood and urinary nitrogen metabolism presented concentrations within the normal range in all treatments.
ISSN:1696-8352
1696-8352
DOI:10.55905/oelv23n5-072