This study was carried out to assess the effect of the incorporation of detoxified argan press cake on milk yield, physicochemical composition, and microbial quality of raw Alpine goat milk produced in the Meskala-Essaouira region of southwestern Morocco. The detoxification method, adopted for the removal of saponin present in the argan press cake, succeeded in reducing these antinutrients from 4.56 to 0.4 mg/g, allowing it to be used as livestock feed. The average of milk production increased by 24% for the detoxified argan press cake (DAPC) group compared to the argan press cake and local diet groups. The diets and lactation stages had a significant effect (P < 0.05) on fat, protein, total solids, and salt in milk. Lactation stage and diet also had a significant effect (P < 0.001) on saponin concentrations in goat milk. Microbiological analysis showed that microbial flora of raw goat milk samples decreased with lactation stage. In terms of performance, DAPC could replace a conventional diet for goats without substantial detrimental effects.

The current study was performed in order to evaluate the effect of using argane by-products (oil cake and pulp) as fattening diet of lambs. This was achieved through an experimental lamb fattening investigation using argan byproduct as feeding source and the exploration of the fattened lamb performance, carcass characteristics and the chemical fatty acid composition of the quality produced meat.Twenty fattening Sardi lambs (26 AE 0.5 kg body weight and six months old) were divided into two (n ¼ 10) homogenous experimental and control groups. Argane by-products (ABP) and traditional (CF) diets have been used for feeding the experimental and control groups respectively during a period of 75 days. The results obtained for both groups were used to determine the effect of feeding argane by-products on animal weight, average daily gain (ADG), carcass weight, muscle pH values, dressing %, dry matter, ash, ether extract, crude fiber, crude protein, and fatty acid composition.The obtained results showed that the experimental ABP group lambs had higher average daily gain and meat chemical, crude protein and ash and proportion of C18:0 than the control CF group lambs, while the control CF group had a higher feed conversion ratio, ether extract, mesenteric and perirenal fat. The results obtained for pH 0 and pH 24 were similar for both explored groups. The obtained results showed thus that the use of ABP as a diet to fattening lambs increased their performance and lean meat yield.

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