Protein and Fat Concentrations in the Blood Serum of Rabbits Fed Different Quantities of Dried Olive Cake

Abstract

The subject of this research is the nutritive effect that different quantities (10 and 20%) of dried olive cake had on total proteins and the proportion of individual proteins, on triacylglycerols, on total cholesterol, HDL and glucose in the serum of fattened rabbits following a 56-day experiment. The experiment involved 60 rabbits, divided into three groups: a control group (C) and two test groups (E 1 and E 2 ), each comprising 10 males and 10 females. Throughout the experiment, rabbits in group C received no olive cake in their feed; group E 1 rabbits were fed a feed mixture containing 10% of dried olive cake; group E 2 rabbits received a feed mixture containing 20% of dried olive cake. After the 56th day of the experiment, blood samples were obtained by cardiac puncture, and specific haematological variables, total proteins and their fractions, triglycerides, total cholesterol, HDL and glucose were established in the serum.The results obtained show no significant differences in the concentration of total proteins, albumin, alpha 1 , alpha 2 , beta and gamma globulin in the serum of rabbits in control group and in the two test groups. Similarly, no significant differences were found in the concentration of serum triacylglycerols and glucose between group C rabbits and the two test groups.However, group E 1 rabbits did show a significantly lower concentration of cholesterol compared with those in group E 2 ; group E 1 rabbits also had a significantly (P<0.01) lower concentration of HDL in their serum than those in group E 2 . Results of the study show that 10% and 20% of dried olive cake had neither detrimental effect on health, nor did they cause significant changes in the level of proteins, lipids and glucose in the serum of rabbits after a 56-day feeding period. Addition of dried olive cake into rabbit diets may therefore be recommended. Hyla rabbits, feeding, olive cake, serum, proteins, lipids and glucoseCultivation of olives has a long-standing tradition in many countries throughout the world, but it is particularly well developed in the Mediterranean area. Olive cake is the industrial by-product left following the extraction of oil from olives. The resulting considerable quantities of olive cake can be used as food for certain categories of livestock. Alternatively, they are simply deposited in the area around oil extraction plants where, due to their long period of degradation, they pollute the environment for prolonged periods of time. For certain types of animals (ruminants, rabbits, etc.) olive cake can be used as feed in somewhat greater quantities, while for chickens and pigs olive cake should form only a smaller portion of their daily diet. Depending on the technological procedure used in the extraction of olive oil, the resulting olive cake contains 3.5 -8.5% of oil, 2.5 -6.0% of raw proteins and other nutrients (Manoukas et al.; 1973, Rupiç et al.;1993, 1994.

Effect of Olive Cake Pulp as A Partial or A Complete Substitute of Wheat Bran in Growing Rabbits’ Diet on Growth Performance, Carcass Traits and Blood Constituents under North Sinai Conditions

“…Feed conversion efficiency during the whole experimental period (6-14 wk) was the best in H group (4.27) followed by L group (4.41) while C and M groups had similar means 4.58 and 4.54 (Table 3). Similar results were obtained by Rupic et al (1999) who found that rabbits fed diet containing 20% olive cake had the best feed conversion while those fed diet containing no olive cake had the lowest. In the contrast, Ali et al (2011) observed that feed conversion of rabbits fed diet containing 22% OK was lower (P<0.05) than that fed basal diet.…”

“…Average daily gain (ADG) followed the same trend as the live body weight (LBW). Similar results were obtained by Rupic et al (1999), Aboul-Ela et al (2011) and Ali et al (2011) who found that different proportion up to 28% olive cake pulp inclusion in rabbit's diets had no adverse effects on final body weight and daily weight gain.…”

Biochemical studies on olive leaves and oil against high sucrose diet in rabbits

“…Our obtained results also revealed that, treatment with olive oil or leaves don't ameliorated the decreasing effect of (total protein, albumin and A/G) resulted from high sucrose diet in treated animals. This result agree with Rupić et al (45) who mentioned that no significant differences in the concentration of total proteins, albumin, alpha1, alpha2, beta and gamma globulin in the serum of rabbits in control group and in those received dried olive cake.…”

Dietary effects of the inclusion of white lupine seeds and different types of binders on the blood indicators of young Dwarf Lop rabbits

“…The particular proportion of plasma or serum globulins can be determined by electrophoresis (Vavricka et al 2009), while classification into individual globulin fractions also depends on the analytical technique used (Tothova et al 2016). Electrophoresis for the measurement of blood serum proteins has recently been used in veterinary studies evaluating the effects of nutrition on the health status of rabbits and some other farmed animals (Rupic et al 1999;Viveros et al 2007;Kudelkova et al 2016).…”