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Effect of M editerranean saltbush ( A triplex halimus ) ensilaging with two developed enzyme cocktails on feed intake, nutrient digestibility and ruminal fermentation in sheep
Author(s) -
Alsersy Haidy,
Salem Abdelfattah Z. M.,
Borhami Borhami E.,
Olivares Jaime,
Gado Hany M.,
Mariezcurrena Maria D.,
Yacuot Mohamed H.,
Kholif Ahmed E.,
ElAdawy Mounir,
Hernandez Saul R.
Publication year - 2015
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.12247
Subject(s) - silage , dry matter , nutrient , neutral detergent fiber , fermentation , zoology , chemistry , food science , digestion (alchemy) , forage , biology , agronomy , organic chemistry , chromatography
The aim of this study was to assess the effects of feeding A triplex halimus ( AH ) silage treated with two developed enzyme cocktails to sheep on feed intake, nutrient digestibility and ruminal fermentation. The AH silage was treated without or with 2 L of ZAD1 ® or ZAD2 ® /1000 kg with 5% molasses and ensiled for 30 days. Barley grain (300 g/head/day) was fed as an energy supplement once daily at 10.00 hours and AH silage with or without enzyme treatment was offered ad libitum to animals twice daily at 09.00 and 16.00 hours. Sheep were fed on four experimental forage diets comprised of AH silage and barley ( D1 ), AH silage treated with ZAD1 ® and barley ( D2 ), AH silage treated with ZAD2 ® and barley ( D3 ) and AH silage treated with a combination of ZAD1 ® and ZAD2 ® (1:1) and barley ( D4 ). Ensiling AH with enzymes reduced its contents of neutral detergent fiber and acid detergent fiber. The dry matter intake of AH of D2 , D3 and D4 decreased ( P < 0.001) as compared to D1 . However, enzyme‐treated diets had greater total digestible nutrients intake ( P < 0.001) as compared to D1 . The nutrients digestibility for D2 , D3 and D4 were higher than those for D1 ( P < 0.001), and were higher for D3 as compared to both D2 and D4 . Sheep fed on D3 had highest ( P < 0.001) ruminal total volatile fatty acids concentration, ammonia nitrogen concentration and microbial protein yield. It could be concluded that AH silage treated with ZAD1 ® or ZAD2 ® improved digestibility and rumen fermentation in sheep.