Effect of Glycine Nano-Selenium Supplementation on Production Performance, Egg Quality, Serum Biochemistry, Oxidative Status, and the Intestinal Morphology and Absorption of Laying Hens

2021 ◽  
Author(s):  
Wenting Zhou ◽  
Sasa Miao ◽  
Mingkun Zhu ◽  
Xinyang Dong ◽  
Xiaoting Zou
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Serum Biochemistry ◽  
Selenium Supplementation ◽  
Oxidative Status ◽  
Intestinal Morphology ◽  
Production Performance

scholarly journals Effect of the Pellet and Mash Feed Forms on the Productive Performance, Egg Quality, Nutrient Metabolism, and Intestinal Morphology of Two Laying Hen Breeds

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 701
Author(s):  
Yi Wan ◽  
Ruiyu Ma ◽  
Anam Khalid ◽  
Lilong Chai ◽  
Renrong Qi ◽  
...  
Keyword(s):  
Feed Intake ◽  
Laying Hens ◽  
Egg Quality ◽  
Laying Hen ◽  
Intestinal Morphology ◽  
Production Performance ◽  
Apparent Digestibility ◽  
Villus Height ◽  
Nutrient Metabolism ◽  
Feed Form

One of the most important factors that determine feed utilization by chickens is the feed form. Although it is generally believed that pellet diets have a positive effect on chicken growth, there are some studies that have indicated no difference between pellet and mash on chickens performance. This study was conducted to assess the effects of feed form on production performance, egg quality, nutrient metabolism and intestinal morphology in two breed laying hens. Two hundred and sixteen 25-week-old Hy-Line brown (n = 108) and Hy-Line grey (n = 108) hens were selected. Each breed was randomly allocated into two treatments with 6 replications (9 birds in each replication), which were fed mash and pellet diets, respectively. Production performances were recorded daily and egg quality traits were measured every two weeks. At 42 weeks of age, one bird per replication from each experimental group was selected for metabolism determination and intestine morphology observation. Compared with mash diets, pellet diets improved laying rate (p < 0.05), ADFI (average daily feed intake, p < 0.05), egg weight, shell strength, yolk proportion and Haugh unit (p < 0.05) in both breeds and reduced the FCR (feed conversion ratio, p < 0.05) in Hy-Line grey. The apparent digestibility of DM% (dry matter) and CP% (crude protein) were significantly higher (p < 0.05) in both breed laying hens fed pellet than those fed mash. The apparent digestibility of P% (phosphorus) and Ca% (calcium) was higher in Hy-Line grey fed pellet and was higher in Hy-Line brown fed mash. Compared to mash diets, pellet diets increased the VH (villus height), CD (crypt depth) and VCR (ratio of villus height to crypt depth) of the small intestine of Hy-Line grey, and increased the VH and CD of duodenum and ileum of Hy-Line brown. Overall, pellet diets improved production performance and nutrition metabolism through positive changes in the laying rate, feed intake, egg albumen quality and apparent digestibility of laying hens. The current findings provided support for the advantages of feeding pellets during the peak egg laying period for the two popular laying hen strains, Hy-Line brown and Hy-Line grey.

scholarly journals Effect of different concentrations of neohesperidin on performance, egg quality, serum biochemistry and intestinal morphology in laying hens

2021 ◽  
pp. 101097
Author(s):  
A.N. Zhu ◽  
K.Y. Zhang ◽  
J.P. Wang ◽  
S.P. Bai ◽  
Q.F. Zeng ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Serum Biochemistry ◽  
Intestinal Morphology

scholarly journals The Effects of Supplementing Lysophosphatidylcholine in Diet on Production Performance, Egg Quality and Intestinal Morphology of Laying Hens

2019 ◽  
Vol 18 (5) ◽  
pp. 238-243
Author(s):  
Witchanun Juntanapum ◽  
Theerawit Poeikhamph ◽  
Kanokporn Poungpong ◽  
Choawit Rakangthon ◽  
Pudcharaporn Kromkhun ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Intestinal Morphology ◽  
Production Performance

Production performance of laying hens at peak lay, sulfur compounds in manure, and selected serum profiles: efficacy of Lactobacillus species as probiotics

2020 ◽  
Vol 60 (2) ◽  
pp. 296
Author(s):  
K. Saksrithai ◽  
N. H. Willits ◽  
A. J. King
Keyword(s):  
Dimethyl Sulfide ◽  
Laying Hens ◽  
Egg Quality ◽  
Carbonyl Sulfide ◽  
Poultry Manure ◽  
Serum Biochemistry ◽  
Sulfur Compounds ◽  
Production Performance ◽  
Lactobacillus Species ◽  
Reduced Sulfur Compounds

ContextProbiotics have potential to improve health of laying hens, thus improving the overall quality of eggs. AimsA study was conducted to evaluate the use of probiotics containing Lactobacillus species to improve egg quality and serum biochemistry, and to lower the concentration of sulfur-containing gas compounds from poultry manure. MethodsNinety-six White Leghorn W-36 laying hens (32 weeks old) were randomly assigned to two feeding treatments: Control and Control + Probiotics. A combination of probiotics (Lactobacillus paracasei, L. plantarum and L. rhamnosus totalling 1 × 1012 CFU/kg feed) was provided for 8 weeks. At Weeks 0, 4 and 8, eggs were analysed for weight, shell thickness, albumen height and Haugh unit. Faecal matter was analysed for total sulfur, sulfate-sulfur and 20 reduced sulfur compounds. Blood serum was analysed for amylase, calcium, phosphate, total cholesterol and triglycerides. Key resultsNo significant differences were observed between the two treatments for any of the parameters. Five sulfide gases were detected in manure: hydrogen sulfide (H2S), dimethyl sulfide (CH3)2S, methyl mercaptan (CH3SH), carbonyl sulfide (COS) and carbon disulfide (CS2). Ratios of various detectable gases were computed. Trends for ratios H2S:(CH3)2S, H2S:CS2, and H2S:COS from manure for both treatments were &gt;1, whereas the ratios H2S:CH3SH and (CH3)2S:CH3SH were &lt;1. ConclusionOverall, probiotics did not enhance production, egg quality or the serum profile. ImplicationsPossibly, the concentration of probiotics was too high, limiting bacterial colonisation and beneficial effects.

scholarly journals Effects of Different Non-Cage Housing Systems on the Production Performance, Serum Parameters and Intestinal Morphology of Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1673
Author(s):  
Yi Wan ◽  
Huan Yang ◽  
Hongyi Zhang ◽  
Ruiyu Ma ◽  
Renrong Qi ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Intestinal Morphology ◽  
Production Performance ◽  
Housing System ◽  
Morphological Observation ◽  
Villus Height ◽  
Serum Parameters ◽  
Antioxidative Status ◽  
Laying Performance

This study investigated the effects of plastic-net housing system (NRS) and floor-litter housing system (LRS) on the production performance, serum parameters and intestinal morphology of Shendan laying hens. A total of 1200 30-week-old hens were randomly allocated to the NRS and LRS groups, each of which included five replicates with 120 chickens in each replicate. The experiment was conducted from 32 to 40 weeks of age. Indoor airborne parameters were measured every 2 weeks, and indoor ground contamination was measured monthly. The laying rate and mortality of hens were recorded daily, and egg quality traits and serum parameters were measured every 2 weeks. At 40 weeks of age, four birds per replicate from each experimental group were selected for intestinal morphological observation. The results showed that the airborne bacteria number in the LRS was significantly higher than that in the NRS (p < 0.05) for most of the experimental period (except at 32 and 38 weeks of age), and the bacterial numbers on the surfaces of the floor and floor eggs in the LRS were approximately 10 times higher than those in the NRS (p < 0.05). Compared with the LRS, the NRS improved the laying rate (p < 0.05), reduced serum malondialdehyde (MDA) (p < 0.05) and corticosterone (CORT) concentrations and increased serum glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities, indicating favourable effects on antioxidative status. The NRS was significantly associated with an increased villus height (VH), villus height to crypt depth ratio (VCR) in the small intestine (p < 0.05) and increased VCR in the caecum (p < 0.05). Overall, the lower rate of bacterial contamination in the NRS than in the LRS indicated better environmental hygiene. The NRS enhanced the laying performance and antioxidant capacity of hens and was superior to the LRS in improving intestinal health. The current findings support the advantages of the NRS for the health and welfare of Shendan chickens during the peak laying period.

scholarly journals Effect of benzoic acid on production performance, egg quality, intestinal morphology, and cecal microbial community of laying hens

2021 ◽  
Vol 100 (1) ◽  
pp. 196-205
Author(s):  
Haojie Gong ◽  
Zengqiao Yang ◽  
Pietro Celi ◽  
Lei Yan ◽  
Xuemei Ding ◽  
...  
Keyword(s):  
Microbial Community ◽  
Benzoic Acid ◽  
Laying Hens ◽  
Egg Quality ◽  
Intestinal Morphology ◽  
Production Performance

Corrigendum to: Production performance of laying hens at peak lay, sulfur compounds in manure, and selected serum profiles: efficacy of Lactobacillus species as probiotics

2020 ◽  
Vol 60 (12) ◽  
pp. 1568
Author(s):  
K. Saksrithai ◽  
N. H. Willits ◽  
A. J. King
Keyword(s):  
Dimethyl Sulfide ◽  
Laying Hens ◽  
Egg Quality ◽  
Carbonyl Sulfide ◽  
Poultry Manure ◽  
Serum Biochemistry ◽  
Sulfur Compounds ◽  
Production Performance ◽  
Lactobacillus Species ◽  
Reduced Sulfur Compounds

ContextProbiotics have potential to improve health of laying hens, thus improving the overall quality of eggs. AimsA study was conducted to evaluate the use of probiotics containing Lactobacillus species to improve egg quality and serum biochemistry, and to lower the concentration of sulfur-containing gas compounds from poultry manure. MethodsNinety-six White Leghorn W-36 laying hens (32 weeks old) were randomly assigned to two feeding treatments: Control and Control + Probiotics. A combination of probiotics (Lactobacillus paracasei, L. plantarum and L. rhamnosus totalling 1 × 1012 CFU/kg feed) was provided for 8 weeks. At Weeks 0, 4 and 8, eggs were analysed for weight, shell thickness, albumen height and Haugh unit. Faecal matter was analysed for total sulfur, sulfate-sulfur and 20 reduced sulfur compounds. Blood serum was analysed for amylase, calcium, phosphate, total cholesterol and triglycerides. Key resultsNo significant differences were observed between the two treatments for any of the parameters. Five sulfide gases were detected in manure: hydrogen sulfide (H2S), dimethyl sulfide (CH3)2S, methyl mercaptan (CH3SH), carbonyl sulfide (COS) and carbon disulfide (CS2). Ratios of various detectable gases were computed. Trends for ratios H2S:(CH3)2S, H2S:CS2, and H2S:COS from manure for both treatments were &gt;1, whereas the ratios H2S:CH3SH and (CH3)2S:CH3SH were ConclusionOverall, probiotics did not enhance production, egg quality or the serum profile. ImplicationsPossibly, the concentration of probiotics was too high, limiting bacterial colonisation and beneficial effects.

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