Effects of Feeding Garlic Powder on Growth Performance, Rumen Fermentation, and the Health Status of Lambs Infected by Gastrointestinal Nematodes

Zhong, Rongzhen; Xiang, Hai; Cheng, Long; Zhao, Changwen; Wang, Fei; Zhao, Xin; Fang, Yi

doi:10.3390/ani9030102

Cited by 30 publications

(41 citation statements)

References 43 publications

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“…Recent ndings showed that the garlic (for example garlic powder), garlic extracts (for example garlic oil) and garlic by-products (for example garlic husk and garlic leaf) had potential to modify rumen fermentation, improve animal performance, and might be an alternative for growth promoting feed antibiotics [16][17][18]. In the present study, an increase of ADG was observed in the GAS group compared with that in the control group, which is consistent with previous study [18].…”

Section: Discussionsupporting

confidence: 92%

Garlic skin induced shifts in the rumen microbiome and metabolome of fattening sheep

Zhu

et al. 2020

Preprint

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Background Garlic and its constituents exhibit activities on modifying rumen fermentation and improving growth performance. As a by-product of garlic processing, garlic skin contains similar bioactive components as garlic bulb. However, studies in ruminants using garlic skin are scarce. This study was conducted to investigate the effects of garlic skin supplementation on rumen fermentation characterizes, growth performance, ruminal microbes and metabolites in ruminants. Twelve Hu lambs were randomly assigned into one of two treatments: basal diet (CON) or basal diet supplemented with 80 g/kg DM of gallic skin (GAS). The experiment lasted for10 weeks, with the first 2 weeks for adaptation. Results The results revealed that the average daily gain and volatile fatty acid concentration were higher (P < 0.05) in lambs fed GAS than that in the control group. Garlic skin supplementation did not significantly (P > 0.10) affect the α-diversity indices. Increased (P < 0.05) abundances of Prevotella, Bulleidia, Howardella, Methanosphaera but a decreased (P < 0.05) abundance of Fretibacterium were observed in GAS-fed lambs. In addition, the garlic skin supplementation favorably regulated (P < 0.05) pyrimidine metabolism, purine metabolism, vitamin B6 and B1 metabolism. Moreover, high correlations were observed between fluctuant rumen microbiota and metabolites. Conclusions Supplementation of garlic skin improved the growth performance of sheep by modifying rumen fermentation through inducing shifts in the rumen microbiome and metabolome.

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Section: Discussionsupporting

confidence: 92%

Garlic skin induced shifts in the rumen microbiome and metabolome of fattening sheep

Zhu

et al. 2020

Preprint

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“…Sixteen healthy Ujumqin lambs with a mean ± SD live weight of 31.9 ± 4.3 kg were selected and individually weighed. Prior to the formal feeding experiment, all lambs were dewormed with a combination of abamectin, albendazole and levamisole (0.2, 5.0 and 7.5 mg/kg BW, respectively) to eliminate existing GINs, with no fecal eggs subsequently identified with the McMaster technique [ 2 ]. At 28 days after deworming, all lambs were artificially orally drenched with 3rd stage larvae of mixed nematodes (0.89 ± 0.04 Haemonchus contortus , 0.08 ± 0.04 Ostertagia circumcincta and some other species of nematodes, as assessed by light microscopy) only once, which were prepared by the egg hatching procedure as described by Zhong et al [ 2 ].…”

Section: Methodsmentioning

confidence: 99%

“…Nearly all grazing animals on pasture-based systems are exposed to helminths. Gastrointestinal nematode (GINs) infection is a major factor limiting profitability for grazing sheep [ 2 ]. In addition to direct adverse effects on growth performance and health, GINs infection also indirectly reduces meat quality, including changed fatty acid composition and flavor of muscle, lighter meat color, increased tenderness, causing poor conformation of sheep carcasses, increased meat fattiness, decreased polyunsaturated fatty acid content and lighter meat color [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Feeding Fungal-Pretreated Corn Straw Improves Health and Meat Quality of Lambs Infected with Gastrointestinal Nematodes

Xiang

Zhao

Fang

et al. 2020

Animals

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Infections with gastrointestinal nematodes (GIN) adversely affect meat color in lambs. Although white-rot fungi (WRF) pretreatment increases nutritional value and fiber digestion of corn straw for lambs, whether it can improve meat quality of lambs infected with GINs is unknown. The objective of this experiment was to study effects of feeding WRF-pretreated corn straw on the health and meat quality of lambs infected with GINs. Sixteen healthy Ujumqin lambs were orally drenched with 3rd-stage GINs larvae and randomly divided into two dietary treatments of control (CON) and WRF diets for 70 days of feeding. Results showed that feeding WRF-pretreated corn straw decreased L* and b* values (p < 0.05) and increased a* value (p < 0.01) of both longissimus thoracis et lumborum (LTL) and semimembranosus (SM) muscles of lambs infected with GINs. Feeding WRF-pretreatment corn straw decreased fecal egg count (p = 0.014) and increased packed cell volume (p = 0.013) of lambs from 28 d of feeding and increased plasma iron content (p = 0.008) of lambs from 56 d of the feeding. Feeding WRF-pretreatment corn straw decreased myosin heavy-chain (MyHC)-I (p = 0.032) and MyHC-IIα (p = 0.025) content in LTL muscle and MyHC-I (p = 0.022) and MyHC-IIβ (p = 0.048) in SM muscle of lambs. In conclusion, although there were no significant changes in the content of most amino acids or increased intensity of better flavor compounds, meat quality and health of lambs infected with GINs was significantly improved by feeding WRF-pretreated corn straw due to increased PCV and meat color and tenderness.

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“…The restriction is due to the concerns over the spread of resistant pathological bacteria and the residues of antibiotics in animal products [1,2]. This has raised the interest in alternative phytogenic feed additives to improve livestock health and production [3,4]. One potential option is the use of licorice ( Glycyrrhiza uralensis ) root extract as a feed additive, which has been investigated mainly in monogastrics over the last 15 years [5,6,7] and scarcely in ruminants.…”

Section: Introductionmentioning

confidence: 99%

Effects of Licorice Extract Supplementation on Feed Intake, Digestion, Rumen Function, Blood Indices and Live Weight Gain of Karakul Sheep

Guo

Cheng

Liu

et al. 2019

Animals

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This study was designed to investigate the effects of licorice extract supplemented to a cottonseed hull-based diet on rumen function, blood indices and growth of Karakul sheep. Twelve rumen-fistulated 1.5-year-old sheep were blocked in pairs by live weight. Sheep within pairs were randomly allocated to feed either on a cottonseed hull basal diet (control group) or on a basal diet containing 4.5% of licorice extract on dry matter (DM) basis (supplemented group). Sheep were housed individually and fed for 60 days, with a 15-day adaptation period and a 45-day measurement period. Feed intake and live weight gain were quantified. Rumen and blood samples were taken during the measurement period. The DM intake was lower for the supplemented group than for the control group. The mean ruminal concentrations of total volatile fatty acid (VFA) and acetate and the ratio of acetate to propionate were lower, while the levels of propionate and butyrate were higher for the supplemented group than for the control group. Average daily live weight gain, digestible energy intake, apparent nutrient digestibility and feed conversion efficiency did not differ between the two treatments. The serum concentrations of immunoglobulin A and G were 2.1 and 1.8 times greater, and total antioxidant and superoxide dismutase increased by 1.8 and 1.2 times in the supplemented group compared with the control group. These results indicated that licorice extract supplementation in the diet at 4.5% of DM had a limited impact on rumen function but improved blood immunoglobulin and anti-oxidative status of Karakul sheep, without impairment of feed conversion efficiency or live weight gain.

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Effects of Feeding Garlic Powder on Growth Performance, Rumen Fermentation, and the Health Status of Lambs Infected by Gastrointestinal Nematodes

Cited by 30 publications

References 43 publications

Garlic skin induced shifts in the rumen microbiome and metabolome of fattening sheep

Garlic skin induced shifts in the rumen microbiome and metabolome of fattening sheep

Feeding Fungal-Pretreated Corn Straw Improves Health and Meat Quality of Lambs Infected with Gastrointestinal Nematodes

Effects of Licorice Extract Supplementation on Feed Intake, Digestion, Rumen Function, Blood Indices and Live Weight Gain of Karakul Sheep

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