Section 22 – Sustainability recording traits - Revision history

Cmosconi at 14:51, 22 October 2025

2025-10-22T14:51:04Z

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	=== Acknowledgements ===		=== Acknowledgements ===
	This document is the work of the ICAR Sustainability Task Force. ICAR gratefully acknowledges their contribution. Members of the ICAR Sustainability Task Force were Tone Roalkvam (Chair, Tine, Norway), Martin Burke (ICAR, the Netherlands), Fabian Bernal (DeLaval, Sweden), Christa Egger-Danner (RinderZucht, Austria), Robert Fourdraine (Dairy Record Management Systems, USA), Birgit Grendl-Gredler (Wageningen University, the Netherlands), René van der Linde (ICAR, the Netherlands) and Débora Santschi (Lactanet, Canada).		This document is the work of the ICAR Sustainability Task Force. ICAR gratefully acknowledges their contribution. Members of the ICAR Sustainability Task Force were Tone Roalkvam (Chair, Tine, Norway), Martin Burke (ICAR, the Netherlands), Fabian Bernal (DeLaval, Sweden), Christa Egger-Danner (RinderZucht, Austria), Robert Fourdraine (Dairy Record Management Systems, USA), Birgit Grendl-Gredler (Wageningen University, the Netherlands), René van der Linde (ICAR, the Netherlands) and Débora Santschi (Lactanet, Canada).
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	== List of ICAR sustainability recording traits ==		== List of ICAR sustainability recording traits ==
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	== Appendix 1 : List of definitions of traits to assess sustainability at herd level ==		== Appendix 1 : List of definitions of traits to assess sustainability at herd level ==
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	The list of sustainability traits can be found below in Table 2 as detailed list with the definitions of the traits. Different colors are used to distinguish the different categories, these colors have no particular meaning.		The list of sustainability traits can be found below in Table 2 as detailed list with the definitions of the traits. Different colors are used to distinguish the different categories, these colors have no particular meaning.
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	== Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle ==		== Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle ==
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	MilkEnergy = 9.29 * kg fat/kg milk + 5'''.85<sup>1</sup> * kg true Protein/kg milk + 3.95 * kg lactose/kg milk, <sup>1</sup>) if total protein is used: replace 5.85 by 5.5.'''		MilkEnergy = 9.29 * kg fat/kg milk + 5'''.85<sup>1</sup> * kg true Protein/kg milk + 3.95 * kg lactose/kg milk, <sup>1</sup>) if total protein is used: replace 5.85 by 5.5.'''
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	== Prediction formula’s for feed efficiency traits ==		== Prediction formula’s for feed efficiency traits ==
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	=== Residual feed intake (in dry matter, DM) ===		=== Residual feed intake (in dry matter, DM) ===
	RFI = FI_observed – FI_predicted		RFI = FI_observed – FI_predicted
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	Energy efficiency should be used instead of feed efficiency if possible. Efficiency traits based on energy consider the energy content of diet. They do not rate herds or animals as poor or well performing as diet quality is lower or higher. Additionally they can be adjusted to body reserve change as known from residual traits. The shorter the calculation period, the more important is the consideration of body reserve change and of stage of lactation, because the mobilization of body reserves and a (too) low or late regeneration of body reserves fake a high efficiency.		Energy efficiency should be used instead of feed efficiency if possible. Efficiency traits based on energy consider the energy content of diet. They do not rate herds or animals as poor or well performing as diet quality is lower or higher. Additionally they can be adjusted to body reserve change as known from residual traits. The shorter the calculation period, the more important is the consideration of body reserve change and of stage of lactation, because the mobilization of body reserves and a (too) low or late regeneration of body reserves fake a high efficiency.
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	== Methane Emissions ==		== Methane Emissions ==
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	=== Simplistic (IPPC Tier 2) ===		=== Simplistic (IPPC Tier 2) ===
	eCH4 (g d−1) = DMI (kg d−1) × 18.5 (MJ kg−1 DM) × Ym)/55.65 (MJ kg−1 eCH4), where Ym = 3.0% when dietary concentrate proportion is ≥90%, otherwise Ym = 6.5%		eCH4 (g d−1) = DMI (kg d−1) × 18.5 (MJ kg−1 DM) × Ym)/55.65 (MJ kg−1 eCH4), where Ym = 3.0% when dietary concentrate proportion is ≥90%, otherwise Ym = 6.5%
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	3. https://doi.org/10.3168/jds.2012-6095		3. https://doi.org/10.3168/jds.2012-6095

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Cmosconi: /* Sustainability recording traits */

2025-10-22T14:45:06Z

Sustainability recording traits

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	== Introduction ==		=== Introduction ===
	This appendix is part of the ICAR guidelines for sustainability recording traits, to assess sustainability at herd level. In this document, prediction formulas are described for the traits feed intake, feed efficiency and methane. These prediction formulas can be used to estimate values for these traits, in case no measured data is available for these traits.		This appendix is part of the ICAR guidelines for sustainability recording traits, to assess sustainability at herd level. In this document, prediction formulas are described for the traits feed intake, feed efficiency and methane. These prediction formulas can be used to estimate values for these traits, in case no measured data is available for these traits.

	== Prediction formulas for feed intake ==		=== Prediction formulas for feed intake ===

	=== TMR Equation (North America based) ===		=== TMR Equation (North America based) ===

Cmosconi at 13:13, 22 October 2025

2025-10-22T13:13:00Z

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	== Introduction to ICAR sustainability traits ==		=== Introduction to ICAR sustainability traits ===
	The purpose of ICAR sustainability traits is to provide a harmonized approach to assess the sustainability of dairy herds. By providing a common definition of these traits, we encourage organizations that are involved in milk recording, breeding or any other way of data recording in dairy herds to develop tools to support farmers to increase the sustainability of their dairy herd.		The purpose of ICAR sustainability traits is to provide a harmonized approach to assess the sustainability of dairy herds. By providing a common definition of these traits, we encourage organizations that are involved in milk recording, breeding or any other way of data recording in dairy herds to develop tools to support farmers to increase the sustainability of their dairy herd.

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	We recommend users of this list of traits to select one or more traits per category and to combine these traits into a sustainability index suitable to their national system. The weight per trait could be determined by each user. The sustainability index could be made available to members of your organization to support the sustainability of their herd or to proof sustainability or product quality to e.g. dairy processors.		We recommend users of this list of traits to select one or more traits per category and to combine these traits into a sustainability index suitable to their national system. The weight per trait could be determined by each user. The sustainability index could be made available to members of your organization to support the sustainability of their herd or to proof sustainability or product quality to e.g. dairy processors.

	== Acknowledgements ==		=== Acknowledgements ===
	This document is the work of the ICAR Sustainability Task Force. ICAR gratefully acknowledges their contribution. Members of the ICAR Sustainability Task Force were Tone Roalkvam (Chair, Tine, Norway), Martin Burke (ICAR, the Netherlands), Fabian Bernal (DeLaval, Sweden), Christa Egger-Danner (RinderZucht, Austria), Robert Fourdraine (Dairy Record Management Systems, USA), Birgit Grendl-Gredler (Wageningen University, the Netherlands), René van der Linde (ICAR, the Netherlands) and Débora Santschi (Lactanet, Canada).		This document is the work of the ICAR Sustainability Task Force. ICAR gratefully acknowledges their contribution. Members of the ICAR Sustainability Task Force were Tone Roalkvam (Chair, Tine, Norway), Martin Burke (ICAR, the Netherlands), Fabian Bernal (DeLaval, Sweden), Christa Egger-Danner (RinderZucht, Austria), Robert Fourdraine (Dairy Record Management Systems, USA), Birgit Grendl-Gredler (Wageningen University, the Netherlands), René van der Linde (ICAR, the Netherlands) and Débora Santschi (Lactanet, Canada).

Cmosconi at 13:11, 22 October 2025

2025-10-22T13:11:36Z

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	__TOC__		__TOC__

	= Sustainability recording traits =		== Sustainability recording traits ==
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	= Appendix 1 : List of definitions of traits to assess sustainability at herd level =		== Appendix 1 : List of definitions of traits to assess sustainability at herd level ==
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	= Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle =
			== Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle ==
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Cmosconi at 13:10, 22 October 2025

2025-10-22T13:10:18Z

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	= Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle =		= Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle =
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Cmosconi at 13:06, 22 October 2025

2025-10-22T13:06:15Z

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	The list of sustainability traits can be found below in Table 2 as detailed list with the definitions of the traits. Different colors are used to distinguish the different categories, these colors have no particular meaning.		The list of sustainability traits can be found below in Table 2 as detailed list with the definitions of the traits. Different colors are used to distinguish the different categories, these colors have no particular meaning.
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Cmosconi at 13:05, 22 October 2025

2025-10-22T13:05:17Z

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	= Sustainability recording traits =		= Sustainability recording traits =
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	== Introduction to ICAR sustainability traits ==		== Introduction to ICAR sustainability traits ==
	The purpose of ICAR sustainability traits is to provide a harmonized approach to assess the sustainability of dairy herds. By providing a common definition of these traits, we encourage organizations that are involved in milk recording, breeding or any other way of data recording in dairy herds to develop tools to support farmers to increase the sustainability of their dairy herd.		The purpose of ICAR sustainability traits is to provide a harmonized approach to assess the sustainability of dairy herds. By providing a common definition of these traits, we encourage organizations that are involved in milk recording, breeding or any other way of data recording in dairy herds to develop tools to support farmers to increase the sustainability of their dairy herd.
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	= Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle =		= Appendix 2: Prediction equations for feed intake, feed efficiency and methane for dairy cattle =
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Aashish: /* Prediction of voluntary feed intake in NorFor (Nordic Feed Evaluation System) */

2024-09-07T10:07:24Z

Prediction of voluntary feed intake in NorFor (Nordic Feed Evaluation System)

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	=== Prediction of voluntary feed intake in NorFor (Nordic Feed Evaluation System) ===		=== Prediction of voluntary feed intake in NorFor (Nordic Feed Evaluation System) ===
	Feed intake is predicted from animal fill capacity and dietary fill values. In the intake is regulated both physically by the diet and metabolically by the energy demand of the animal. Each individual feed is assigned a basic fill value (FV; section 6.2) and the animal is assigned an intake capacity (IC) expressed in the same units as the feed When predicting DMI, the following general equation must be fulfilled:		Feed intake is predicted from animal fill capacity and dietary fill values. In the intake is regulated both physically by the diet and metabolically by the energy demand of the animal. Each individual feed is assigned a basic fill value (FV; section 6.2) and the animal is assigned an intake capacity (IC) expressed in the same units as the feed When predicting DMI, the following general equation must be fulfilled:

			IC= FV_intake



	where IC is the animal intake capacity and FV_intake is the total feed intake expressed in fill units		where IC is the animal intake capacity and FV_intake is the total feed intake expressed in fill units

	The following equation is used to calculate IC in dairy cows:		The following equation is used to calculate IC in dairy cows:[[File:Final.png\|center\|thumb\|501x501px]]

	where IC_cow is the intake capacity of lactating dairy cows; DIM is days in milk; ECM is the energy corrected milk, kg/d; BW is the animal body weight, kg; and a, b, c, d, e, f, g are regression coefficients presented in Table 5.		where IC_cow is the intake capacity of lactating dairy cows; DIM is days in milk; ECM is the energy corrected milk, kg/d; BW is the animal body weight, kg; and a, b, c, d, e, f, g are regression coefficients presented in Table 5.

Aashish: /* Prediction formula’s for feed efficiency traits */

2024-09-07T10:04:25Z

Prediction formula’s for feed efficiency traits

← Older revision		Revision as of 10:04, 7 September 2024
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	MilkEnergy = 9.29 * kg fat/kg milk + 5'''.85<sup>1</sup> * kg true Protein/kg milk + 3.95 * kg lactose/kg milk, <sup>1</sup>) if total protein is used: replace 5.85 by 5.5.'''		MilkEnergy = 9.29 * kg fat/kg milk + 5'''.85<sup>1</sup> * kg true Protein/kg milk + 3.95 * kg lactose/kg milk, <sup>1</sup>) if total protein is used: replace 5.85 by 5.5.'''

	=== Prediction formula’s for feed efficiency traits ===		== Prediction formula’s for feed efficiency traits ==

	=== Residual feed intake (in dry matter, DM) ===		=== Residual feed intake (in dry matter, DM) ===

Aashish: /* 3.1 Residual feed intake (in dry matter, DM) */

2024-09-07T10:03:17Z

3.1 Residual feed intake (in dry matter, DM)

← Older revision		Revision as of 10:03, 7 September 2024
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	=== Prediction formula’s for feed efficiency traits ===		=== Prediction formula’s for feed efficiency traits ===

	=== ~~3.1~~ Residual feed intake (in dry matter, DM) ===		=== Residual feed intake (in dry matter, DM) ===
	RFI = FI_observed – FI_predicted		RFI = FI_observed – FI_predicted