Prediction models for basal endogenous losses of crude protein and amino acids in pigs

Autor: Noa Park, Hansol Kim, Beob Gyun Kim
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Animal Bioscience, Vol 37, Iss 11, Pp 1962-1969 (2024)
Druh dokumentu: article
ISSN: 2765-0189
2765-0235
DOI: 10.5713/ab.24.0197
Popis: Objective The objectives were to validate a previously published equation for estimating basal endogenous losses (BEL) of crude protein (CP) in pigs fed nitrogen-free diets and to develop prediction equations for BEL of CP and amino acids (AA). Methods A total of 139 observations from 123 experiments in 117 papers that determined the BEL of CP and AA in pigs were collected. For the validation of the previous equation for the BEL of CP, 94 observations that were not used for developing the previous equation were used. All observations were used to develop novel equations for estimating BEL of CP in pigs based on the initial body weight (IBW). Results The validation study indicated that the slope for BEL of CP, representing a linear bias, was less than zero (−0.56; standard error [SE] = 0.130; p
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