Seaweed


Caulerpa taxifolia (G) Rhodes grass hay 2, 3.8, 7.4, 13.8 TGP reduced at dose 7.4:92.6 [50]

  

			Seaweed			
			dose (% of		
			dry matter		
	species	Substrate	(DM) organic	or	Digestibility, TGP or TVFA	Reference
			matter			
			(OM)			
			incubated)		
	Acrosiphonia spp. (G)	Seaweed spring and autumn alone,	100			Mitigation not examined	[43]
	Alaria esculenta (B)	F:C, 50:50	10; harvested spring and autumn	No effect on TVFA	[144]
	Alaria esculenta (B)	Seaweed alone (no mitigation), spring and autumn	100			Mitigation not examined	[43]
						No effect on
	Ascophyllum nodosum (B)	F:C, 50:50	5			TGP, TVFA, or degradability DOM (N	[59]
						decreased)
						2-5% decrease in
	Caulerpa taxifolia (G)	Rhodes grass hay	5%			TGP, decrease TVFA,	12% in

no effect on DOM at 72 h [11] Cladophora coelothrix (G) Flinders grass and CSM 16.6 No effect on TGP [12] Cladophora patentiramea (G) Rhodes grass hay 5% 2-5% decrease in TGP, 23% decrease in TVFA, no effect on DOM at 72 h [11] Cladophora rupestris (G) F:C, 50:50 4.2; harvested spring and autumn No effect on TVFA [145] Cladophora vagabunda (FW) Flinders grass and CSM 16.6 No effect on TGP [48]

  

				2-5% decrease in
	Cystoseria trinodis (B)	Rhodes grass hay	5%	TGP, TVFA, no effect 12% decrease in	[11]
				on DOM at 72 h
	Derbesia tenuissima (G)	Flinders grass and CSM	16.6	No effect on TGP	[48]
				2-5% decrease in
	Dictyota bartayresii (B)	Rhodes grass hay	5%	TGP, decrease TVFA,	23% in

no effect on DOM at 72 h [11] Ecklonia stolonifera (B) (3 extracts) Timothy hay 1, 3, 5 No decrease in TGP or DDM; decreased TVFA at 48 h [77]

  

	Laminaria digitata (B)	Seaweed alone (no mitigation),, spring and autumn	100	Mitigation not examined	[42]
	Laminaria digitata (B)	F:C, 50:50	5	No effect on DOM TGP, TVFA, or	[58]
	Laminaria digitata (B)	F:C, 50:50	10; harvested spring and autumn	No effect on TVFA	[144]
	Laminaria ochroleuca (B)	Meadow hay	25	No effect on TGP	[50]
	Laminaria ochroleuca (B)	Corn silage	25	TGP decreased	[50]
	Mastocarpus stellatus (R)	F:C, 50:50	7.5; harvested spring and autumn	No effect on TVFA	[144]
	Mastocarpus stellatus (R)	Seaweed harvested spring and autumn (no mitigation)	100	Mitigation not examined	[42]
	Gigartina spp. (R)	Corn silage	25	TGP decreased	[50]
	Gracilaria vermiculophylla (R)	Total mixed ration 25	No effect on TGP or OMD	[144]
	Halymenia floresii (R)	Flinders grass and CSM	16.6	No effect on TGP	[48]

Oedogonium spp. (FW) Rhodes grass hay 2, 3.8, 7.4, 13.8 No effect on TGP [49]

  

	Palmaria palmata extracts) (R)	(2	Timothy silage	grass	7, 13, 18	No decrease in TGP or DOM	[9]
	Palmaria palmata (R)		Seaweed spring and autumn alone, (no mitigation)	100	Mitigation not examined	[42]
	Pelvetia canaliculata (B)	F:C, 50:50		7.5; harvested spring and autumn	No effect on TVFA	[145]
	Pelvetia canaliculata (B)	Seaweed spring and autumn alone, (no mitigation)	100	Mitigation not examined	[42]
	Porphyra spp. (R)	F:C, 50:50		4.2; harvested spring and autumn	No effect on TVFA	[144]
	Porphyra spp. (R)	Seaweed spring and autumn alone, (no mitigation)	100	Mitigation not examined	[42]
	Saccharina latissimi extracts) (B)	(4	Timothy silage	grass	13, 23, 31	No decrease in TGP or DOM	[9]
						2-5% decrease in	
	Padina australis (B)		Rhodes grass hay	5%	TGP, TVFA, no effect 15% decrease in	[11]
						on DOM at 72 h	
	Palmaria palmata (R)		F:C, 50:50		6.5; harvested spring and autumn	No effect on TVFA	[210]
	Palmaria palmata extract) (R)	(1	Timothy silage	grass	13, 23, 31	No decrease in TGP or DOM	[9]

Saccharina latissimi (B) F:C, 50:50 7.5; harvested spring and autumn No effect on TVFA [145]

  

				TVFA, no effect
				on DOM at 72 h
	Spirogyra spp. (FW)	Flinders grass and CSM	16.6	No effect on TGP	[49]
	Tarong polyculture (FW)	Rhodes grass	2:, 3.8, 7.4, 13.8	No effect on TGP	[50]
				2-5% decrease in
				TGP,	16%
	Ulva ohnoi (G)	Rhodes grass	5%	decrease	in
				TVFA,	
	Saccharina latissimi (B)	Meadow hay	25	No effect on TGP	[50]
	Saccharina latissimi (B)	Corn silage	25	No effect on TGP	[50]
	Saccharina latissimi (B)	Total mixed ration 25	No effect on TGP or OMD	[145]
	Sargassum flavicans (B)	Rhodes grass hay	5%	2-5% decrease in decrease in TGP, 15%	[11]

no effect on DOM at 72 h [15] Ulva rigida (G) Total mixed ration 25 No effect on TGP or OMD [145]

  

	Ulva spp. (G)	Corn silage	25	No effect on TGP	[51]
	B, brown;				

CSM, cottonseed meal; DM, dry matter; DOM, degradability of organic matter; F:C, forage:concentrate ratio; FW, fresh water algae; G, green; OM, organic matter; R, red; TGP, total gas production; TVFA, total volatile fatty acids