EFFECT OF ADDITION OF ANISE, CLOVE AND THYME ESSENTIAL OILS ON BARKI LAMBS PERFORMANCE, DIGESTIBILITY, RUMEN FERMENTATION, CARCASS CHARACTERISTICS AND INTRAMUSCULAR FATTY ACIDS

Autor: A.M. Abdel-Wahed, I. M. Khattab, Abeer M. El-Essawy, Ahlam R. Abdou
Rok vydání: 2019
Předmět:
Zdroj: Egyptian Journal of Nutrition and Feeds. 22:465-477
ISSN: 1110-6360
DOI: 10.21608/ejnf.2019.79415
Popis: Recently, some plants essential oils (EO) are used as natural feed additives for ruminants because their major bioactive compounds have antimicrobial properties that can be effective against undesirable rumen microbes. In addition, EO have not an adverse effect either on animal or human health and environment. This work was carried out to evaluate the effect of natural additives as essential oils addition on animal performance, feed intake, apparent digestibility, carcass characteristics, chemical composition and fatty acids profile of longissimus lumborum muscle of Barki lambs. Twenty weaned male Barki lambs ( 19.72 ± 2.09) kg BW, 3 months old were randomly assigned in one of four diet groups, 5 animals each , were received the same basal diet,(50% berseem hay, BH, and 50% concentrate feed mixture). All experimental animals were kept in individual pens for 195 days for fattening trial and 15 days for digestibility trial. At the end of the experiment all lambs were slaughtered for carcass characteristics evaluation and meat fatty acids (FAs) profile determination. The control lambs were fed their basal diet without EO supply. The other three groups were orally given, by syringe, one of the three tested EO before morning feeding as follow: the basal diet plus 2 ml/day/lamb of anise EO (Anise group), 2 ml/day /lamb clove EO (Clove group) or 2 ml/day/lamb thyme EO (Thyme group). According to the results, the experimental EO had no significant effects on nutrients intake, lamb's performance (final body weight, average daily gain and feed conversion ratio) (P> 0.05). Clove EO improved dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), acid detergent fiber (ADF) digestibility (P
Databáze: OpenAIRE