Physiological Response, Semen Quality and Blood Biochemical Parameters of Rabbit Bucks Supplemented With Phytogenic Components During Summer Season of Egypt

Abstract

eventy-two mature New Zealand White (NZW) rabbit's bucks were randomly and equally divided into eight groups each of nine bucks to evaluate the impact each of rocket seeds (RS), carrot seeds (CS), or bay laurel leaves (BLL) and their mixtures on semen quality, biochemical components and the physiological response of NZW rabbits bucks during hot summer conditions. The study started in June and lasted for 8 weeks. Eight experimental diets were formulated such that diet (D1) free additives as a control group. Diets 2, 3 and 4 contained 1.0% RS, 1.0% CS and 1.0% BLL, respectively. Diet 5, 6 and 7 contained a mix of 0.5% RS+0.5% CS, 0.5% CS+0.5% BLL and 0.5% RS+0.5% BLL, respectively, while diet 8 contained 0.33% RS+0.33% CS+0.33% BLL. Insignificant effect on buck's body weight, however, feed intake was significantly increased as compared to bucks group given the control diet. Supplementation with RS, CS, BLL, and their mixtures caused significant improvement in ejaculate volume, individual motility, total motile sperm, sperm concentration, live sperm%, total functional sperm fraction, total sperm output, and decreased abnormal sperm%. Seminal plasma initial fructose and globulin increased significantly with RS, CS, BLL, and their mixtures treatments. Seminal plasma alkaline phosphatase (ALP), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) appeared reduction significantly with the RS, CS, BLL and their mixtures treatments. Seminal plasma total antioxidant capacity (TAC) increased, while, malondialdehyde (MDA) levels significantly decreased in all supplemented groups compared with the control bucks' value. Most of the supplemented groups showed a significant decrease in blood plasma glucose, cholesterol, triglycerides, and total lipids, low-density lipoproteins, AST and ALT as compared to the control group. However, blood plasma total protein and albumin were increased in comparison with the control group. Blood plasma TAC significantly increased due to the addition of RS, CS, BLL, and their mixtures as compared to the control group, but MDA levels decreased.

Effect of Some Medical Herbs on Productive Performance of Lactating Zaraibi Goats

“…On the other hand, the concentrations of glucose, total lipids, tri-glyceride, total cholesterol and LDL-c in blood plasma were almostly significant decreased with increasing the level of RDL and LDL up to 1% in the tested rations. The obtained results are in agreement with those recorded by Abdel-Azeem et al (2018) who reported that the supplementation of bay laurel leaves into rabbits diets led to a significant decrease in blood plasma glucose, cholesterol, triglycerides, total lipids, low-density lipoproteins, AST and ALT as compared to those of control one. While, Sahraei et al (2014) showed that the supplementation of sheep rations with rosemary essential oil had no effect on plasma concentrations of glucose.…”

“…The same trend was observed also with daily DM intake during suckling period among the tested treatments especial during midsuckling period. Abdel-Azeem et al (2018) reported that supplemented diet of bucks with bay laurel leaves could be caused an insignificant positive effect on their body weight; however, feed intake was significantly (P≤0.05) increased compared with the group of bucks that given the control diet. Such increase in feed intake of group fed diet including bay laurel leaves compared to that of control one might be due to the stimulating effect of bay laurel leaves on the gastrointestinal system by enhancing diet palatability and utilizability.…”

“…The obtained results are in agreement with those recorded by Basyony and Azoz (2017) who reported that dietary supplementation of bay laurel leaves improved significantly the antioxidant status of doe rabbits during the pregnancy and lactation periods as well as their offsprings. Similarly, Abdel-Azeem et al (2018) showed that bay laurel leaves markedly increased seminal plasma total antioxidant capacity (TAC) for New Zealand White rabbit's bucks. Likewise, plasma total antioxidant capacity was substantially higher in the rabbits receiving bay leaves in their diets compared with those have no receive it (Casamassima et al, 2016).…”