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Update 4.1.2 N and TAN Excretions authored by Cora Vos's avatar Cora Vos
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4-Manure-management/4.1-Excretions/4.1.2-N-and-TAN-Excretions.md
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......@@ -98,7 +98,7 @@ The amount of N retained is calculated assuming an N content of the animal body
## Male cattle \> 2 years
<span dir="">In accordance with </span>[<span dir="">KTBL (2006b)</span>](/9%20Literature#ktbl-kuratorium-f%C3%BCr-technik-und-bauwesen-in-der-landwirtschaft-ed-2006b)<span dir="">, pg. 412, the nitrogen excretion is assumed to amount to 84 kg pl<sup>-1</sup> a<sup>-1</sup> N, 60 % of which is assumed to be TAN (according to (</span>[<span dir="">EMEP, 2019</span>](/9%20Literature#emep-2019)<span dir="">-3B-31, Table 3.9, other cattle).</span>
<span dir="">In accordance with </span>[<span dir="">KTBL (2006b)</span>](/9%20Literature#ktbl-kuratorium-f%C3%BCr-technik-und-bauwesen-in-der-landwirtschaft-ed-2006b)<span dir="">, pg. 412, the nitrogen excretion is assumed to amount to 84 kg pl<sup>-1</sup> a<sup>-1</sup> N, 60 % of which is assumed to be TAN (according to (</span>[<span dir="">EMEP, 2019</span>](/9%20Literature#emep-2019)<span dir="">-3B, Table 3.9, other cattle).</span>
# Pigs
......@@ -150,15 +150,15 @@ The amount of N retained is calculated assuming an N content of the animal body
# Small ruminants
<span dir="">The data on N excretion for goats available for Germany is 11 kg N (pl ∙ a)<sup>-1</sup> (</span>[<span dir="">LfL, 2003</span>](/9%20Literature#lfl-bayerische-landesanstalt-f%C3%BCr-landwirtschaft-ed-2003)<span dir="">). All calculations are based on this figure. A fraction of 50 % of the nitrogen excreted is assumed to be TAN (</span>[<span dir="">EMEP(2019)</span>](/9%20Literature#emep-2019)<span dir="">-3B-31, Table 3.9).</span>
<span dir="">The data on N excretion for goats available for Germany is 11 kg N (pl ∙ a)<sup>-1</sup> (</span>[<span dir="">LfL, 2003</span>](/9%20Literature#lfl-bayerische-landesanstalt-f%C3%BCr-landwirtschaft-ed-2003)<span dir="">). All calculations are based on this figure. A fraction of 50 % of the nitrogen excreted is assumed to be TAN (</span>[EMEP(2023)](/9%20Literature#emep-2023)<span dir="">-3B, Table 3.9).</span>
<span dir="">According to </span>[<span dir="">KTBL (2004, pg. 227)</span>](/9%20Literature#ktbl-kuratorium-f%C3%BCr-technik-und-bauwesen-in-der-landwirtschaft-ed-2004)<span dir=""> lambs fattened in the house excrete 3 kg N (pl ∙ a)<sup>-1</sup>, while grazing lambs excrete 5 kg N (pl ∙ a)<sup>-1</sup>. The inventory uses the mean of these data (4 kg N (pl ∙ a)<sup>-1</sup></span>). <span dir="">50 % of the N excreted is assumed to be TAN (</span>[<span dir="">EMEP (2019)</span>](/9%20Literature#emep-2019)<span dir="">-3B-31, Table 3.9).</span>
<span dir="">According to </span>[<span dir="">KTBL (2004, pg. 227)</span>](/9%20Literature#ktbl-kuratorium-f%C3%BCr-technik-und-bauwesen-in-der-landwirtschaft-ed-2004)<span dir=""> lambs fattened in the house excrete 3 kg N (pl ∙ a)<sup>-1</sup>, while grazing lambs excrete 5 kg N (pl ∙ a)<sup>-1</sup>. The inventory uses the mean of these data (4 kg N (pl ∙ a)<sup>-1</sup></span>). <span dir="">50 % of the N excreted is assumed to be TAN (</span>[EMEP (2023)](/9%20Literature#emep-2023)<span dir="">-3B, Table 3.9).</span>
<span dir="">In Germany, an N excretion of 10 kg pl<sup>-1</sup> a<sup>-1</sup> is assumed for a ewe without lambs </span>[<span dir="">(KTBL, 2004, pg. 427)</span>](/9%20Literature#ktbl-kuratorium-f%C3%BCr-technik-und-bauwesen-in-der-landwirtschaft-ed-2004)<span dir="">. This value is also used for the other adult sheep. A fraction of 50 % of the nitrogen excreted is assumed to be TAN (</span>[<span dir="">EMEP (2019)</span>](/9%20Literature#emep-2019)<span dir="">-3B-31, Table 3.9).</span>
<span dir="">In Germany, an N excretion of 10 kg pl<sup>-1</sup> a<sup>-1</sup> is assumed for a ewe without lambs </span>[<span dir="">(KTBL, 2004, pg. 427)</span>](/9%20Literature#ktbl-kuratorium-f%C3%BCr-technik-und-bauwesen-in-der-landwirtschaft-ed-2004)<span dir="">. This value is also used for the other adult sheep. A fraction of 50 % of the nitrogen excreted is assumed to be TAN (</span>[EMEP (2023)](/9%20Literature#emep-2023)<span dir="">-3B, Table 3.9).</span>
# Horses
<span dir="">According to </span>[<span dir="">DLG (2005)</span>](/9%20Literature#dlg-deutsche-landwirtschaftsgesellschaft-ed-2005)<span dir="">, pg 55, saddle-horses with a weight of 500 to 600 kg an<sup>-1</sup> with mixed stabling and grazing and occasional work excrete 53.6 kg N (pl ∙ a<sup>-1</sup>). For light horses a value of 33.4 kg N (pl ∙ a)<sup>-1</sup> is given. A fraction of 0.6 kg kg<sup>-1</sup> is assumed to be TAN (</span>[<span dir="">EMEP(2019)</span>](/9%20Literature#emep-2019)<span dir="">-3B-31, Table 3.9).</span>
<span dir="">According to </span>[<span dir="">DLG (2005)</span>](/9%20Literature#dlg-deutsche-landwirtschaftsgesellschaft-ed-2005)<span dir="">, pg 55, saddle-horses with a weight of 500 to 600 kg an<sup>-1</sup> with mixed stabling and grazing and occasional work excrete 53.6 kg N (pl ∙ a<sup>-1</sup>). For light horses a value of 33.4 kg N (pl ∙ a)<sup>-1</sup> is given. A fraction of 0.6 kg kg<sup>-1</sup> is assumed to be TAN (</span>[EMEP(2023)](/9%20Literature#emep-2023)<span dir="">-3B, Table 3.9).</span>
# Poultry
......@@ -234,7 +234,7 @@ The amount of N retained is calculated assuming an N content of the animal body
## Geese
<span dir="">According to DLG (2014), pg. 91, geese excrete 702 g an<sup>-1</sup> = 702 g pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 70 % (see </span>[<span dir="">EMEP (2019)</span>](/9%20Literature#emep-2019)<span dir="">-3B-31, Table 3.9).</span>
<span dir="">According to DLG (2014), pg. 91, geese excrete 702 g an<sup>-1</sup> = 702 g pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 70 % (see </span>[EMEP (2023)](/9%20Literature#emep-2023)<span dir="">-3B, Table 3.9).</span>
<span dir="">A spatial and temporal differentiation of N and UAN excretion is not possible due to a lack of corresponding input data.</span>
......@@ -276,7 +276,7 @@ and
## Ostrich
As IPCC (2006) does not provide an N excretion value for ostrich, the value from the danish inventory ([UNFCCC](/9%20Literature#unfccc-united-nations-framework-convention-on-climate-change-2020)) was adopted. Thus ostrich excrete 15.6 kg pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 70 % (see [EMEP (2019)](/9%20Literature#emep-2019)-3B-31, Table 3.9, value for poultry adopted).
As IPCC (2006) does not provide an N excretion value for ostrich, the value from the danish inventory ([UNFCCC](/9%20Literature#unfccc-united-nations-framework-convention-on-climate-change-2020)) was adopted. Thus ostrich excrete 15.6 kg pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 70 % (see [EMEP (2023)](/9%20Literature#emep-2023)-3B, Table 3.9, value for poultry adopted).
## Rabbits
......@@ -288,8 +288,8 @@ This total of weight gain can be calculated as follows (based on data given by L
## Deer
According to DLG (2014) deer excrete 16 kg pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 50 % (no value provided by [EMEP (2019)](/9%20Literature#emep-2019)-3B-31, Table 3.9), the value of goats was adopted.
According to DLG (2014) deer excrete 16 kg pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 50 % (no value provided by [EMEP (2023)](/9%20Literature#emep-2023)-3B, Table 3.9), the value of goats was adopted.
## Fur animals
IPCC (2006), Table 10.19 gives a default value for the N excretion of fur animals: 4.59 kg pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 60 % ( [EMEP (2019)](/9%20Literature#emep-2019)-3B-31, Table 3.9).
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IPCC (2006), Table 10.19 gives a default value for the N excretion of fur animals: 4.59 kg pl<sup>-1</sup> a<sup>-1 </sup>an<sup>-1</sup>. The UAN content of the N excretions is assumed to be 60 % ( [EMEP (2023)](/9%20Literature#emep-2023)-3B, Table 3.9).
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