Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing Pigs

Objective: The study was conducted to assess the effect of supplementation with <i>Lactobacillus lactis</i> (LL) on growth performance, hematological parameters, meat quality and intestinal flora in pigs from growing until slaughter. Methods: A total of 72 growing pigs (30.46 ± 3.08 kg)...

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Main Authors: Haitao Duan, Lizi Lu, Lei Zhang, Jun Li, Xu Gu, Junguo Li
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/13/7/1247
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author Haitao Duan
Lizi Lu
Lei Zhang
Jun Li
Xu Gu
Junguo Li
author_facet Haitao Duan
Lizi Lu
Lei Zhang
Jun Li
Xu Gu
Junguo Li
author_sort Haitao Duan
collection DOAJ
description Objective: The study was conducted to assess the effect of supplementation with <i>Lactobacillus lactis</i> (LL) on growth performance, hematological parameters, meat quality and intestinal flora in pigs from growing until slaughter. Methods: A total of 72 growing pigs (30.46 ± 3.08 kg) were randomly assigned to 3 groups (including 3 pens for each group, with 8 pigs in each pen). The three treatments comprised a basal diet (O-0) and two experimental diets supplemented for 14 weeks with 0.01% (O-100) and 0.03% (O-300) LL, respectively. Results: The final body weights of the pigs in the O-100 and O-300 groups were significantly higher (<i>p</i> < 0.05) than those of the O-0 group. In the grower phase, the average daily weight gain (ADG) and average daily feed intake (ADFI) of pigs fed the O-300 diet were higher (<i>p</i> < 0.05) than those of pigs fed the O-0 diet during the grower phase. BUN and MDA were significantly higher (<i>p</i> < 0.05 for all) in the O-0 group than in the O-100 and O-300 groups during the grower phase. No difference (<i>p</i> > 0.05) was observed in the hematological parameters among the three groups during the finisher phase. Counts of LL in the stomach were significantly higher (<i>p</i> < 0.05) in the O-300 group than in the O-0 group. Counts of <i>Escherichia coli</i> in the jejunum were significantly higher (<i>p</i> < 0.05) in the O-0 group than in the O-300 group. Furthermore, the hardness, cohesiveness, gumminess and resilience of longissimus dorsi muscle collected from pigs fed the O-300 diet were higher (<i>p</i> < 0.01; <i>p</i> = 0.024; <i>p</i> = 0.003; <i>p</i> = 0.014, respectively) than those of tissue collected from pigs fed the O-0 diet. Conclusion: Dietary LL supplementation increased final body weight, increased ADG in the grower phase and enhanced meat quality.
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spelling doaj.art-fac8700ec2434324bec777acb0712b2b2023-11-17T16:14:47ZengMDPI AGAnimals2076-26152023-04-01137124710.3390/ani13071247Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing PigsHaitao Duan0Lizi Lu1Lei Zhang2Jun Li3Xu Gu4Junguo Li5College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, ChinaAnimal Husbandry Station of the Guangxi Zhuang Autonomous Region, Nanning 530221, ChinaHenan Institute of Agricultural, Animal and Aquatic Products Inspection & Testing Technology, Zhengzhou 450046, ChinaFeed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaFeed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaFeed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaObjective: The study was conducted to assess the effect of supplementation with <i>Lactobacillus lactis</i> (LL) on growth performance, hematological parameters, meat quality and intestinal flora in pigs from growing until slaughter. Methods: A total of 72 growing pigs (30.46 ± 3.08 kg) were randomly assigned to 3 groups (including 3 pens for each group, with 8 pigs in each pen). The three treatments comprised a basal diet (O-0) and two experimental diets supplemented for 14 weeks with 0.01% (O-100) and 0.03% (O-300) LL, respectively. Results: The final body weights of the pigs in the O-100 and O-300 groups were significantly higher (<i>p</i> < 0.05) than those of the O-0 group. In the grower phase, the average daily weight gain (ADG) and average daily feed intake (ADFI) of pigs fed the O-300 diet were higher (<i>p</i> < 0.05) than those of pigs fed the O-0 diet during the grower phase. BUN and MDA were significantly higher (<i>p</i> < 0.05 for all) in the O-0 group than in the O-100 and O-300 groups during the grower phase. No difference (<i>p</i> > 0.05) was observed in the hematological parameters among the three groups during the finisher phase. Counts of LL in the stomach were significantly higher (<i>p</i> < 0.05) in the O-300 group than in the O-0 group. Counts of <i>Escherichia coli</i> in the jejunum were significantly higher (<i>p</i> < 0.05) in the O-0 group than in the O-300 group. Furthermore, the hardness, cohesiveness, gumminess and resilience of longissimus dorsi muscle collected from pigs fed the O-300 diet were higher (<i>p</i> < 0.01; <i>p</i> = 0.024; <i>p</i> = 0.003; <i>p</i> = 0.014, respectively) than those of tissue collected from pigs fed the O-0 diet. Conclusion: Dietary LL supplementation increased final body weight, increased ADG in the grower phase and enhanced meat quality.https://www.mdpi.com/2076-2615/13/7/1247growing-finishing pigs<i>Lactobacillus lactis</i>growth performancemeat qualityhematological parameters
spellingShingle Haitao Duan
Lizi Lu
Lei Zhang
Jun Li
Xu Gu
Junguo Li
Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing Pigs
Animals
growing-finishing pigs
<i>Lactobacillus lactis</i>
growth performance
meat quality
hematological parameters
title Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing Pigs
title_full Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing Pigs
title_fullStr Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing Pigs
title_full_unstemmed Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing Pigs
title_short Effects of Lactobacillus Lactis Supplementation on Growth Performance, Hematological Parameters, Meat Quality and Intestinal Flora in Growing-Finishing Pigs
title_sort effects of lactobacillus lactis supplementation on growth performance hematological parameters meat quality and intestinal flora in growing finishing pigs
topic growing-finishing pigs
<i>Lactobacillus lactis</i>
growth performance
meat quality
hematological parameters
url https://www.mdpi.com/2076-2615/13/7/1247
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