Effects of dietary supplementation with fermented and non-fermented brown algae by-products on laying performance, egg quality, and blood profile in laying hens

Abstract

ObjectiveThis study was conducted to investigate the effects of dietary supplementation with fermented and non-fermented brown algae by-products on the laying performance, egg quality, relative organ weight, and blood profile of laying hens.MethodsHy-Line Brown chickens (n = 180; 70-week-old) were randomly divided into 5 groups with 4 replicates per group (3 hens per cage, 4 cages per replicate), and fed with 5 experimental diets, namely the basal control diet (CON) or the control diet supplemented with 0.5% brown seaweed (BS), 0.5% seaweed fusiforme (SF), 0.5% fermented brown seaweed (FBS), or 0.5% fermented seaweed fusiforme (FSF), for 4 weeks.ResultsEgg production rate and egg mass were greater in the BS group than in the other groups (p<0.05), and the SF and FSF groups had greater egg production than the control group (p<0.05). Egg weight was higher in the BS group than in the other groups (p<0.05). There were no differences in eggshell color, egg yolk color, eggshell strength, or eggshell thickness among the groups. There was no difference in Haugh units among the treatment groups, except for the FSF group, which had a significantly lower value (p<0.05). The non-fermented groups had greater relative organ weights, particularly the liver and cecum, than the other groups (p<0.05). Regarding blood profile, the supplemented-diet groups had higher albumin levels than the control group (p<0.05). The FBS group had higher total cholesterol and triglyceride levels than the other groups (p<0.05). The BS and FBS groups had higher glutamic pyruvic transaminase levels than the other groups (p<0.05).ConclusionThis study demonstrated that dietary brown algae supplementation can improve egg-laying performance; however, supplementation with fermented seaweeds had no positive effect on the egg-laying performance of hens.

Effects of Dietary Supplementation With Green and Brown Seaweeds on Laying Performance, Egg Quality, and Blood Lipid Profile and Antioxidant Capacity in Laying Japanese Quail

“…These results are in agreement with the observations of Rizk et al (2017) who reported that supplementing layer diets with green and brown seaweeds improved laying performance and egg production. In the present study, the addition of two types of GS and BS in the feed did not affect FC in layer Japanese quails, and similar results were observed in other studies (Carrillo et al, 2008;Choi et al, 2018). However, FCR was significantly affected due to dietary GS and BS supplementations, these results may be due to that green and brown seaweeds have been improved animal immune status by decreasing microbial load in the digestive tract, which reflect on feed metabolism and improved feed conversion ratio (Wang et al, 2013a, b).…”

“…Formation of eggshell was reported to be affected by minerals, such as Ca, P, Mg, K (NRC, 1994). In current study, dietary supplementation with GS and BS included many minerals necessary for eggshell formation (Makkar et al 2016;Choi et al 2018). However, in this study, there was no difference in the quality of eggs due to all the minerals needed to form eggshell were provided in all experimental feeds.…”

“…Similarly, Selim et al (2018) showed that the concentration of serum cholesterol decreased significantly in laying hens as dietary Spirulina platensis increased. However, Choi et al (2018) found that triglycerides and total cholesterol were significantly higher in laying hens had received 0.5 % brown seaweed compared to the control. Diet supplemented with GS and BS had an increasingly significant effect on TAC, CAT, GPX and SOD activities and the effect in decreasing the MDA concentration were obvious (Table 7).…”

Effect of supplemental serine-protease from Bacillus licheniformis on growth performance and physiological change of broiler chickens

“…Elevation in plasma GOT activity indicates hepatic injury. More GOT and GPT are released into the bloodstream when the liver or heart cells are impaired (Saleh 2014;Choi et al 2018). It has been reported that the alteration of GPT might be attributed to the synthesized fat level (Dongare et al 2013;Saleh 2016).…”

Effect of Bacillus velezensis to substitute in-feed antibiotics on the production, blood biochemistry and egg quality indices of laying hens

“…Results showed that triglyceride in the plasma of the antibiotic group and experiment group I was increased, but decreased in the experimental group II (P > 0.05). In the study of Choi et al (2018 supplementation of fermented brown seaweed in the feed could signi cantly increase triglyceride and cholesterol in the blood of laying hens (P < 0.05) [49]. But Zhao et al (2013) reported that fed with fermented Ginkgo-leaves has an increased effect on triglyceride and cholesterol in blood plasma [50].…”