A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet

Abstract High-producing ruminants need high-concentrate diets to satisfy their nutrient requirements and meet performance objectives. However, such diets induce sub-acute ruminal acidosis (SARA), which will adversely affect dry matter intake and lead to lower production performance. This work develo...

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Autores principales:	Masoomeh Taghipoor, Maud Delattre, Sylvie Giger-Reverdin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/53a8b902595a42bbb06344abbfe82eb2
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spelling	oai:doaj.org-article:53a8b902595a42bbb06344abbfe82eb22021-12-02T12:33:45ZA novel modelling approach to quantify the response of dairy goats to a high-concentrate diet10.1038/s41598-020-77353-y2045-2322https://doaj.org/article/53a8b902595a42bbb06344abbfe82eb22020-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-77353-yhttps://doaj.org/toc/2045-2322Abstract High-producing ruminants need high-concentrate diets to satisfy their nutrient requirements and meet performance objectives. However, such diets induce sub-acute ruminal acidosis (SARA), which will adversely affect dry matter intake and lead to lower production performance. This work develops a novel modelling approach to quantify the capacity of dairy goats to adapt to a high-concentrate diet challenge at the individual level. The animal model used was dairy goats (from Saanen or Alpine breed), and rumen pH was used as the indicator of the response. A three-step modelling procedure was developed to quantify daily scores and produce a single global index for animals’ adaptive response to the new diet. The first step summarizes the post-prandial kinetics of rumen acid status using three synthetic variables. In the second step, the effect of time on the response of goats is described, in the short and long terms. In the last step, a metric based on phase trajectories ranks goats for their resilience capacity. This modelling procedure showed a high variability among the goats in response to the new diet, highlighting in particular their daily and general strategies to buffer the effect of the diet change. Two main categories of adaptive strategies were observed: (i) acid status increased, but the goats tried to minimize its variations, and (ii) acid status oscillated between increases and decreases. Such phenotyping, alongside other behavioral, digestive, and metabolic measures, can help to determine biomarkers of goats’ capacity to adapt to diets of higher nutritive value and to increase production performance without compromising their health status. Quantifying the capacity of goats to buffer the effect of highly fermentable diets helps to better adapt feed to animals in precision livestock farming. This procedure is generic and can be adapted to any indicator of animal health and performance. In particular, several indicators can be combined to assess multi-performance, which is of major interest in the context of selection for robust animals.Masoomeh TaghipoorMaud DelattreSylvie Giger-ReverdinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Masoomeh Taghipoor Maud Delattre Sylvie Giger-Reverdin A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet
description	Abstract High-producing ruminants need high-concentrate diets to satisfy their nutrient requirements and meet performance objectives. However, such diets induce sub-acute ruminal acidosis (SARA), which will adversely affect dry matter intake and lead to lower production performance. This work develops a novel modelling approach to quantify the capacity of dairy goats to adapt to a high-concentrate diet challenge at the individual level. The animal model used was dairy goats (from Saanen or Alpine breed), and rumen pH was used as the indicator of the response. A three-step modelling procedure was developed to quantify daily scores and produce a single global index for animals’ adaptive response to the new diet. The first step summarizes the post-prandial kinetics of rumen acid status using three synthetic variables. In the second step, the effect of time on the response of goats is described, in the short and long terms. In the last step, a metric based on phase trajectories ranks goats for their resilience capacity. This modelling procedure showed a high variability among the goats in response to the new diet, highlighting in particular their daily and general strategies to buffer the effect of the diet change. Two main categories of adaptive strategies were observed: (i) acid status increased, but the goats tried to minimize its variations, and (ii) acid status oscillated between increases and decreases. Such phenotyping, alongside other behavioral, digestive, and metabolic measures, can help to determine biomarkers of goats’ capacity to adapt to diets of higher nutritive value and to increase production performance without compromising their health status. Quantifying the capacity of goats to buffer the effect of highly fermentable diets helps to better adapt feed to animals in precision livestock farming. This procedure is generic and can be adapted to any indicator of animal health and performance. In particular, several indicators can be combined to assess multi-performance, which is of major interest in the context of selection for robust animals.
format	article
author	Masoomeh Taghipoor Maud Delattre Sylvie Giger-Reverdin
author_facet	Masoomeh Taghipoor Maud Delattre Sylvie Giger-Reverdin
author_sort	Masoomeh Taghipoor
title	A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet
title_short	A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet
title_full	A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet
title_fullStr	A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet
title_full_unstemmed	A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet
title_sort	novel modelling approach to quantify the response of dairy goats to a high-concentrate diet
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/53a8b902595a42bbb06344abbfe82eb2
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A novel modelling approach to quantify the response of dairy goats to a high-concentrate diet

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