Prediction models of reticulorumen particles and solutes passage rate in growing goats

Gindri, M.; Moraes, L.E.F.D.; Teixeira, I.A.M.A.

doi:10.1016/j.animal.2023.100970

animal

2023

DOI: 10.1016/j.animal.2023.100970

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Prediction models of reticulorumen particles and solutes passage rate in growing goats

M. Gindri,

L.E.F.D. Moraes,

I.A.M.A. Teixeira

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2023

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Cited by 2 publications

References 46 publications

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Editorial: The 10th international Workshop on Modelling Nutrient Digestion and Utilization in Farm Animals (MODNUT)

Cannas,

Cabrera,

Dougherty

et al. 2023

animal

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Editorial: The 10th international Workshop on Modelling Nutrient Digestion and Utilization in Farm Animals (MODNUT)

Cannas,

Cabrera,

Dougherty

et al. 2023

animal

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Modeling Gastrointestinal Tract Wet Pool Size in Small Ruminants

Ribeiro,

Gindri,

Macedo Junior

et al. 2023

Animals

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The gastrointestinal tract (GIT) wet pool size (GITwps) refers to the total amount of wet contents in GIT, which in small ruminants can reach up to 19% of their body weight (BW). This study aimed to develop models to comprehensively predict GITwps in small ruminants using a meta-regression approach. A dataset was created based on 21 studies, comprising 750 individual records of sheep and goats. Various predictor variables, including BW, sex, breed, species, intake level, physiological states, stages and types of pregnancy, dry matter intake, and neutral detergent fiber intake (NDFI), were initially analyzed through simple linear regression. Subsequently, the variables were fitted using natural logarithm transformations, considering the random effect of the study and residual error, employing a supervised forward selection procedure. Overall, no significant relationship between GITwps and BW (p = 0.326) was observed for animals fed a milk-based diet. However, a strong negative linear relationship (p < 0.001) was found for animals on a solid diet, with the level of restriction influencing GITwps only at the intercept. Furthermore, the prediction of GITwps was independent of sex and influenced by species in cases where individuals were fed ad libitum. Pregnant females showed a noticeable reduction in GITwps, which was more pronounced in cases of multiple pregnancies, regardless of species (p < 0.01). The composition of the diet was found to be the primary factor affecting the modulation of GITwps, with NDFI able to override the species effect (p < 0.0001). Overall, this study sheds light on the factors influencing GITwps in small ruminants, providing valuable insights into their digestive processes and nutritional requirements.

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Prediction models of reticulorumen particles and solutes passage rate in growing goats

Cited by 2 publications

References 46 publications

Editorial: The 10th international Workshop on Modelling Nutrient Digestion and Utilization in Farm Animals (MODNUT)

Editorial: The 10th international Workshop on Modelling Nutrient Digestion and Utilization in Farm Animals (MODNUT)

Modeling Gastrointestinal Tract Wet Pool Size in Small Ruminants

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