D.12 ECM Yield

D.12 Jersey: ECM Yield

A. parametric coefficients	Estimate	Std. Error	t-value	p-value
(Intercept)	18.5383	0.8722	21.2546	\(< 0.0001\)
parityprimiparous	-3.1781	0.0163	-195.4078	\(< 0.0001\)
year1999	-0.8262	0.9761	-0.8464	0.3973
year2000	0.0183	0.9690	0.0189	0.9849
year2001	0.7161	0.9324	0.7680	0.4425
year2002	1.1984	0.9342	1.2828	0.1996
year2003	1.6896	0.9407	1.7962	0.0725
year2004	2.3125	0.9084	2.5456	0.0109
year2005	2.6139	0.8927	2.9282	0.0034
year2006	2.7400	0.8919	3.0722	0.0021
year2007	2.5140	0.8873	2.8333	0.0046
year2008	2.9241	0.8861	3.2999	0.0010
year2009	3.0485	0.8928	3.4146	0.0006
year2010	3.2974	0.8999	3.6642	\(< 0.0005\)
year2011	3.5419	0.8911	3.9750	\(< 0.0001\)
year2012	3.8750	0.8833	4.3869	\(< 0.0001\)
year2013	3.8343	0.8801	4.3567	\(< 0.0001\)
year2014	4.5334	0.8848	5.1234	\(< 0.0001\)
year2015	4.6029	0.8831	5.2123	\(< 0.0001\)
year2016	4.9300	0.8818	5.5910	\(< 0.0001\)
year2017	5.2786	0.8865	5.9547	\(< 0.0001\)
year2018	5.6528	0.8850	6.3875	\(< 0.0001\)
year2019	6.0667	0.8797	6.8962	\(< 0.0001\)
year2020	6.3867	0.8849	7.2176	\(< 0.0001\)
year2021	6.4376	0.8848	7.2758	\(< 0.0001\)
year2022	6.1875	0.8845	6.9955	\(< 0.0001\)
year2023	6.4372	0.8763	7.3457	\(< 0.0001\)

B. smooth terms	edf	Ref.df	F-value	p-value
s(thi_mean_t0_3d):paritymultiparous	7.9519	7.9519	114.8914	\(< 0.0001\)
s(thi_mean_t0_3d):parityprimiparous	5.6644	5.6644	146.4984	\(< 0.0001\)
s(days_in_milk_t):paritymultiparous	13.5716	13.5716	34840.0802	\(< 0.0001\)
s(days_in_milk_t):parityprimiparous	13.0755	13.0755	3646.1487	\(< 0.0001\)

Table D.67: Jersey: ECM Yield - 1998-2023 - GAMM model summary without random effect terms.

Smooth Term Fixed Effect	Est.	SE	z	p
s(thi_mean_t0_3d):multiFx1	0.622797	0.111537	5.58	\(< 1e-07\)
s(thi_mean_t0_3d):primiFx1	0.472103	0.115708	4.08	\(< 1e-04\)
s(days_in_milk_):multiFx1	3.87517	0.426994	9.08	\(< 1e-18\)
s(days_in_milk_):primiFx1	3.47422	0.603778	5.75	\(< 1e-08\)

Table D.68: Jersey: ECM Yield - 1998-2023 - Mixed Model Summary - Smooth Terms and Random Effects.

Figure D.68: Jersey: ECM Yield - 1998 - 2023 - THI Effect and Lactation Curve

A. parametric coefficients	Estimate	Std. Error	t-value	p-value
(Intercept)	18.2669	0.7578	24.1067	\(< 0.0001\)
parityprimiparous	-2.5939	0.0256	-101.3950	\(< 0.0001\)
year1999	-0.6468	0.8527	-0.7586	0.4481
year2000	0.2027	0.8311	0.2439	0.8073
year2001	1.1265	0.8029	1.4030	0.1606
year2002	1.8105	0.8042	2.2513	0.0244
year2003	2.3125	0.7949	2.9093	0.0036
year2004	3.0193	0.7861	3.8407	0.0001
year2005	3.4202	0.7798	4.3858	\(< 0.0001\)
year2006	3.6439	0.7756	4.6983	\(< 0.0001\)
year2007	3.5288	0.7748	4.5543	\(< 0.0001\)
year2008	4.0872	0.7753	5.2718	\(< 0.0001\)
year2009	4.4202	0.7742	5.7095	\(< 0.0001\)
year2010	4.8513	0.7709	6.2932	\(< 0.0001\)

B. smooth terms	edf	Ref.df	F-value	p-value
s(thi_mean_t0_3d):paritymultiparous	6.7718	6.7718	42.2573	\(< 0.0001\)
s(thi_mean_t0_3d):parityprimiparous	4.9785	4.9785	51.3939	\(< 0.0001\)
s(days_in_milk_t):paritymultiparous	12.8146	12.8146	11531.2301	\(< 0.0001\)
s(days_in_milk_t):parityprimiparous	11.8206	11.8206	1844.1937	\(< 0.0001\)

Table D.69: Jersey: ECM Yield - 1998-2010 - GAMM model summary without random effect terms.

Smooth Term Fixed Effect	Est.	SE	z	p
s(thi_mean_t0_3d):multiFx1	0.556587	0.166586	3.34	0.0008
s(thi_mean_t0_3d):primiFx1	0.399362	0.171063	2.33	0.0196
s(days_in_milk_):multiFx1	3.05618	0.696401	4.39	\(< 1e-04\)
s(days_in_milk_):primiFx1	2.77329	0.788521	3.52	0.0004

Table D.70: Jersey: ECM Yield - 1998-2010 - Mixed Model Summary - Smooth Terms and Random Effects.

Figure D.70: Jersey: ECM Yield - 1998 - 2010 - THI Effect and Lactation Curve

A. parametric coefficients	Estimate	Std. Error	t-value	p-value
(Intercept)	21.9720	0.1946	112.8937	\(< 0.0001\)
parityprimiparous	-3.2946	0.0213	-154.9018	\(< 0.0001\)
year2012	0.2540	0.2259	1.1242	0.2609
year2013	0.2118	0.2609	0.8118	0.4169
year2014	0.8891	0.2536	3.5061	0.0005
year2015	0.9643	0.2528	3.8138	0.0001
year2016	1.2941	0.2389	5.4180	\(< 0.0001\)
year2017	1.6423	0.2463	6.6682	\(< 0.0001\)
year2018	2.0143	0.2347	8.5841	\(< 0.0001\)
year2019	2.4266	0.2273	10.6763	\(< 0.0001\)
year2020	2.7412	0.2476	11.0717	\(< 0.0001\)
year2021	2.7795	0.2468	11.2643	\(< 0.0001\)
year2022	2.5202	0.2486	10.1379	\(< 0.0001\)
year2023	2.7349	0.2213	12.3600	\(< 0.0001\)

B. smooth terms	edf	Ref.df	F-value	p-value
s(thi_mean_t0_3d):paritymultiparous	7.8183	7.8183	101.7990	\(< 0.0001\)
s(thi_mean_t0_3d):parityprimiparous	5.9748	5.9748	101.4406	\(< 0.0001\)
s(days_in_milk_t):paritymultiparous	13.4448	13.4448	25136.3559	\(< 0.0001\)
s(days_in_milk_t):parityprimiparous	12.6212	12.6212	2246.7077	\(< 0.0001\)

Table D.71: Jersey: ECM Yield - 2011-2023 - GAMM model summary without random effect terms.

Smooth Term Fixed Effect	Est.	SE	z	p
s(thi_mean_t0_3d):multiFx1	-0.690297	0.130414	-5.29	\(< 1e-06\)
s(thi_mean_t0_3d):primiFx1	-0.514106	0.148913	-3.45	0.0006
s(days_in_milk_):multiFx1	3.86596	0.476176	8.12	\(< 1e-15\)
s(days_in_milk_):primiFx1	3.43391	0.653845	5.25	\(< 1e-06\)

Table D.72: Jersey: ECM Yield - 2011-2023 - Mixed Model Summary - Smooth Terms and Random Effects.

Figure D.72: Jersey: ECM Yield - 2011 - 2023 - THI Effect and Lactation Curve