title: Effect of grape seed and skin supplement on milk yield and composition of dairy ewes.
abstract: In the present study, we investigated the effect of grape seed and skin supplement (GSSS), on lactating dairy ewes' production. Ten dairy pregnant ewes from northern Tunisia were allocated to two groups: control diet (C) and supplemented with 20 % (w/w) GSSS. The experiment lasted for 8 weeks and took place after 2 months of lambing. During the experiment, daily milk yield and milk composition were determined. Supplementation of the diet with GSSS increased milk production (P < 0.001), calcium (P < 0.01), free iron (P < 0.01) and urea content (P < 0.001) but had no effect on milk fat nor protein. From these data, it is concluded that the inclusion of GSSS in sheep diets increased significantly ewes' milk yield.
authors.affiliation: Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Campus Universitaire El Manar, 2092, Tunis, Tunisia. meherzia.mokni@fst.rnu.tn.|Institut Supérieur de Biotechnologie de Béja, Université de Jendouba, Avenue Habib Bourguiba, B.P. 382-9000, Béja, Tunisia. meherzia.mokni@fst.rnu.tn.
authors.forename: Meherzia
authors.initials: M
authors.lastname: Mokni
authors.affiliation: Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Campus Universitaire El Manar, 2092, Tunis, Tunisia.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Amri
authors.affiliation: Laboratoire des Substances Bioactives, Centre de Biotechnologie, Technopole Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia.
authors.forename: Ferid
authors.initials: F
authors.lastname: Limam
authors.affiliation: Laboratoire des Substances Bioactives, Centre de Biotechnologie, Technopole Borj-Cedria, BP-901, 2050, Hammam-Lif, Tunisia.
authors.forename: Ezzedine
authors.initials: E
authors.lastname: Aouani
mesh_terms: D000821:Animal Feed; D000818:Animals; D000975:Antioxidants; D002118:Calcium / Q000737:chemistry; D003611:Dairy Products; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D005247:Feeding Behavior; D005260:Female; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000032:analysis; D007774:Lactation / Q000187:drug effects*; D015227:Lipid Peroxidation; D008892:Milk / Q000737:chemistry*; D012639:Seeds; D012756:Sheep; D034561:Sheep, Domestic; D014416:Tunisia; D014508:Urea / Q000494:pharmacology; D027843:Vitis / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D014508:Urea; D006861:Hydrogen Peroxide; D007501:Iron; D002118:Calcium
keywords: Calcium; Dairy ewes; Free iron; GSSS; Milk yield