311 – Non-antibiotic feed additives in diets for pigs – A review (Research paper – Liu – 2018)

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311 Research paper – Liu – 2018 – Non-antibiotic feed additives in diets for pigs_ A review

In Significant Impact Groups: Feed / gut health \ Feed additives and supplements
Species targeted: Pigs;
Age: Young; Adult;
Summary:
A number of feed additives are marketed to assist in boosting the pigs’ immune system, regulate gut microbiota, and reduce negative impacts of weaning and other environmental challenges. The most commonly used feed additives include acidifiers, zinc and copper, prebiotics, direct-fed microbials, yeast products, nucleotides, and plant extracts. Inclusion of pharmacological levels of zinc and copper, certain acidifiers, and several plant extracts have been reported to result in improved pig performance or improved immune function of pigs. It is also possible that use of prebiotics, direct-fed microbials, yeast, and nucleotides may have positive impacts on pig performance, but results have been less consistent and there is a need for more research in this area.

Where to find the original material: https://pubmed.ncbi.nlm.nih.gov/30140751/; https://doi.org/10.1016/j.aninu.2018.01.007.
Country: US

309 – Role of Feed Processing on Gut Health and Function in Pigs and Poultry_ Conundrum of Optimal Particle Size and Hydrothermal Regimens (Research paper – Kiarie – 2019)

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309 Research paper – Kiarie – 2019 – Role of Feed Processing on Gut Health and Function in Pigs and Poultry_ Conundrum of Optimal Particle Size and Hydrothermal Regimens

In Significant Impact Groups: Feed / gut health \ Feed composition
Species targeted: Pigs; Poultry;
Age: Not stated;
Summary:
Processing livestock feed influences gut health/function, efficacy of feed enzymes and nutrient availability. Finer feed particles allow better absorption of nutrients (increased surface area allowing better contact with digestive enzymes) and enhance animal performance. There is a limit to the particle size; very fine particles negatively affect gut health, i.e. stomach ulceration in pigs and gizzard dysfunction in poultry. Coarse particle size increases stomach and hindgut acidification, which may be beneficial in controlling overgrowth of gut bacteria, such as salmonella and E. coli. However, since most commercial pig/poultry diets are subject to heating to reduce levels of feed-borne bacteria (e.g. Salmonella) reduction of feed particle size is inevitable. However, achieving high nutritional quality and processing at high temperatures does not favour high nutrient availability and stability of heat sensitive enzymes. Therefore, feed processing balance maximum nutrient utilization, feed hygiene status, stability of enzymes post-processing and impact on gut health.

Where to find the original material: https://pubmed.ncbi.nlm.nih.gov/30838217/; https://doi.org/10.3389/fvets.2019.00019
Country: CA

307 – Milk supplemented with immune colostrum – Protection against rotavirusdiarrhea and modulatory effect on the systemic and mucosal antibodyresponses (Research paper – Parreno – 2010)

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307 Research paper – Parreno – 2010 – Milk supplemented with immune colostrum_ Protection against rotavirusdiarrhea and modulatory effect on the systemic and mucosal antibodyresponses

In Significant Impact Groups: Feed / gut health \ Early feeding (colostrum/feed)
Species targeted: Dairy; Beef;
Age: Young;
Summary:
Giving milk supplemented with rotavirus immune colostrum for the first 14 days of life induced high protection rates against rotavirus diarrhoea in calves during the period of peak susceptibility to infection and a positive effect of the calves’ immune responses. All calves received control colostrum prior to gut closure followed by the milk supplemented with immune colostrum, twice a day, for 14 days. Calves received milk supplemented with 0.8% immune colostrum (G1) or milk supplemented with 0.4% immune colostrum (G2). Calves were inoculated with rotavirus at 2 days of age. After challenge, all calves in G1 and 2 were fully protected against diarrhoea and only 1 of 5 calves in G1 shed virus asymptomatically. The duration of the supplemented milk feeding were key factors to obtain high protection during the period of peak susceptibility to diarrhoea.

Where to find the original material: https://pubmed.ncbi.nlm.nih.gov/20138373/; https://doi.org/10.1016/j.vetimm.2010.01.003
Country: AG

294 – Oral administration of synthetic porcine beta-defensin-2 improves growth performance and cecal microbial flora and down-regulates the expression of intestinal toll-like receptor-4 and inflammatory cytokines in weaned piglets challenged with enterotoxigenic Escherichia coli (Research paper – Tang – 2016)

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294 Research paper – Tang – 2016 – Oral administration of synthetic porcine beta-defensin-2 improves growth performance and cecal microbial flora and down-regulates the expression of intesti

In Significant Impact Groups: Feed / gut health \ Feed additives and supplements; Specific alternatives
Species targeted: Pigs;
Age: Young;
Summary:
Synthetic porcine beta-defensin-2 (pBD-2) was tested as an alternative to antimicrobial growth-promoters in pig production. Thirty 21-day weaned piglets were challenged with Escherichia coli, and orally dosed with either sterile water (CON), pBD-2 (BD) or neomycin sulphate (NS) twice daily for 21 days. Therefore, pBD-2 has antimicrobial activity in piglets, and it can improve growth performance, reduce inflammatory cytokine expression and affect intestinal morphological indices in the same way as probiotics. Moreover, pBD-2 has a more positive effect on intestinal morphological indices and intestinal probiotics of piglets than does NS. Therefore, the present results suggest that pBD-2 may be a suitable replacement for NS in piglets.

Where to find the original material: https://onlinelibrary.wiley.com/doi/full/10.1111/asj.12540; https://doi.org/10.1111/asj.12540
Country: CN

293 – Effects of dietary hop beta-acids or colistin on the performance nutrient digestibility and intestinal health of weanling pigs (Research paper – Sbardella – 2016)

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293 Research paper – Sbardella – 2016 – Effects of dietary hop beta-acids or colistin on the performance nutrient digestibility and intestinal health of weanling pigs

In Significant Impact Groups: Feed / gut health \ Feed additives and supplements; Specific alternatives
Species targeted: Pigs;
Age: Young;
Summary:
This study evaluated the effects of hop (Humulus lupulus) beta-acids or colistin on several parameters, namely body weight (BW), Average feed intake (ADFI) Average daily gain (ADG), gain:feed ratio (G:F). Two hundred 21-d weaned pigs fed diets supplemented with 0 (negative control), 120, 240, or 360 mg/kg hop beta-acids, or with 40 mg/kg colistin (antimicrobial control) during a 35-d experiment. Increasing dietary levels of hop beta-acids improved linearly BW, ADG, G:F,and digestibility in weanling pigs. The colistin treatment improved BW, ADG, and G:F compared to the negative control. No difference in growth performance was observed between hop beta-acids levels and colistin. Overall, the occurrence of diarrhea was lower for colistin, negative control, and 360 mg/kg hop beta-acids than for other levels. In conclusion, dietary hop beta-acids concentrations up to 360 mg/kg improved weanling pig growth rate by affecting the efficiency of feed utilization, as well as observed for colistin.

Where to find the original material: https://www.sciencedirect.com/science/article/pii/S0377840116301420; http://dx.doi.org/10.1016/j.anifeedsci.2016.04.007
Country: BR

288 – Effects of dietary allicin on health and growth performance of weanling piglets and reduction in attractiveness of faeces to flies (Research paper – Huang – 2010)

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288 Research paper – Huang – 2010 – Effects of dietary allicin on health and growth performance of weanling piglets and reduction in attractiveness of faeces to flies

In Significant Impact Groups: Feed / gut health \ Feed additives and supplements
Species targeted: Pigs;
Age: Young;
Summary:
The effect of allicin on health and growth performance of weanling piglets was investigated at 21 days of age. Two hundred and twenty-five piglets were weaned and allocated into five groups. Piglets in the control group were fed diets supplemented with antibiotics. In the treatment groups pigs were fed diets without antibiotics, but supplemented with allicin product (25% pure allicin oil) with 0.10 g/kg, 0.15 g/kg, 0.20 g/kg and 0.25 g/kg in the diet, respectively. After 28 days, the average daily weight gain increased as the level of dietary allicin increased; whereas feed gain ratio, the incidence of diarrhoea in the treatment piglets decreased (especially female piglets) and the number of flies on the surface of the faeces decrease with increased allicin. In conclusion, diets with allicin may improve growth performance, reduce the incidence of diarrhoea and improve their local environmental conditions due to lower number of flies.

Where to find the original material: https://europepmc.org/article/med/22440775; https://doi.org/10.1017/S1751731110001953
Country: CN; US

287 – Use of a micro-encapsulated eucalyptus-medium chain fatty acids product as an alternative to zinc oxide and antibiotics (Research paper – Han – 2011)

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287 Research paper – Han – 2011 – Use of a micro-encapsulated eucalyptus-medium chain fatty acids product as an alternative to zinc oxide and antibiotics

In Significant Impact Groups: Specific alternatives \ New antibiotics; Feed / gut health
Species targeted: Pigs;
Age: Young;
Summary:
The effects of eucalyptus-medium chain fatty acids (E-MCFAs), zinc oxide (ZnO), and antibiotics on performance, nutrient digestibility, and serum chemistry parameters of were studied in nursery pigs. Three experiments were conducted. Recently weaned pigs, were given five treatments consisting of a basal diet or the basal diet supplemented with antibiotics (33 mg per kg tiamulin and 44 mg per kg lincomycin), ZnO (1500 or 2500 mg per kg), or 0.1% E-MCFAs (Experiments One and Two). In Experiment Three, 1% diatomaceous earth was added and the negative control was not used. In all three experiments, performance of pigs fed the four supplemented diets did not differ. Digestibility was higher in the diet supplemented with E-MCFAs than in diets supplemented with ZnO or antibiotics. This study indicates eucalyptus-MCFAs can be successfully used as a growth promoter in diets fed to nursery pigs.

Where to find the original material: https://www.aasv.org/shap/issues/v19n1/v19n1p34.html;
Country: KR, CA

285 – Effect of Brazilian red pepper (Schinus terebinthifolius Raddi) essential oil on performance diarrhea and gut health of weanling pigs (Research paper – Gois – 2016)

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285 Research paper – Gois – 2016 – Effect of Brazilian red pepper (Schinus terebinthifolius Raddi) essential oil on performance diarrhea and gut health of weanling pigs

In Significant Impact Groups: Feed / gut health \ Feed additives and supplements; Specific alternatives
Species targeted: Pigs;
Age: Young;
Summary:
This study aimed to evaluate the effects of dietary Brazilian red pepper essential oil and an antimicrobial agent on weanling pig growth performance, diarrhea, pH of the digestive content, small intestine cells, and intestine microbial counts. Ninety weanling castrated male pigs were given five treatments: a diet supplemented with 0 (negative control), 500, 1000, and 1500mg/kg Brazilian red pepper essential oil vs with 120mg/kg chlorohydroxyquinoline (antibiotic). Treatments had no effect on growth performance, diarrhea occurrence, pH of the digestive content, gut mucosa and intestinal microbial counts of weanling pigs. However, pigs fed the diet containing 500mg/kg essential oil had thicker gut mucosa than those fed diets containing the antibiotic or 1000 and 1500 mg/ kg essential oil. Thus, Brazilian red pepper essential oil and the antibiotic are of limited benefit for enhancing the growth of weanling pigs. Nonetheless, the effectiveness of growth enhancer additives may be reduced in non-challenging situations.

Where to find the original material: https://www.sciencedirect.com/science/article/pii/S1871141315300354; https://doi.org/10.1016/j.livsci.2015.11.009
Country: BR

275 – Water management practices in rabbit and poultry farms improve understanding of different attitudes (Research paper – Rousset – 2019)

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275 Research paper – Rousset – 2019 – Water management practices in rabbit and poultry farms improve understanding of different attitudes

Water \ Water quality
Species targeted: Poultry; Other;
Age: Not stated;
Summary:
In poultry and rabbit farms, the control of water quality is an important animal health measure. Technical guides describe good water management practices, and criteria of water quality. However, the level of receptivity and application of theses advices is very different between breeders. In order to sensitize farmers effectively, a qualitative study was conducted with 11 rabbit farmers and 7 broilers farmers, to improve understanding of different attitudes to water management practices. The majority of breeders define the quality of water in an imprecise way. Four profiles have been identified that can be represented along two axes: the level of knowledge and the level awareness of the importance of water quality subject. Breeders require advices that are more personal. It will be necessary to encourage them, to guide them more. Based on these profiles, suitable supports are being built.

Where to find the original material: https://www.itavi.asso.fr/content/la-gestion-de-leau-dabreuvement-en-elevages-cunicole-et-avicole-mieux-comprendre-les;
Country: FR

267 – Comparaison de l effet de diferents additifs alimentaires en production de poulets Label Rouge (Research paper – Pertusa – 2017)

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267 Research paper – Pertusa – 2017 – Comparaison de l effet de diferents additifs alimentaires en production de poulets Label Rouge

In Significant Impact Groups: Specific alternatives \ Pre-/probiotics Feed / gut health
Species targeted: Poultry;
Age: Young;
Summary:
Reducing the use of antibiotics is a major challenge for the poultry sector. This work aims at assessing the efficiency of several different forms of food additive on technical performances and health status of Label Rouge broilers, produced in sub-optimal conditions (eggs storage before incubation for 18 days and distribution of less digestive food with essential amino-acid deficiency). The effects of pre-starter, rehydrating, and combination of the two products are tested for the first two days of rearing. The (day-old) chick quality, measured according to 8 criteria, is negatively impacted by the storage duration before incubation. For the first 2 days, the pre starter effect is positive. Its usefulness is clear when this is combined with the rehydrating association. The supplementation from 7 to 12 days has improved the broiler feed efficiency. For the second part of rearing (15-76 days), technical results are not significantly different regardless of treatments.

Where to find the original material: https://www.cabdirect.org/cabdirect/abstract/20183183465;
Country: FR