Short- and mid-term effects on performance, health and qualitative behavioural assessment of Romane lambs in different milk feeding conditions

Mialon, Marie-Madeleine; Boivin, Xavier; Durand, Denis; Boissy, Alain; Delval, Eric; Bage, Anne-Sophie; Clanet, C; Cornilleau, Fabien; Parias, Céline; Foury, Aline; Moisan, Marie‐Pierre; Fassier, Thierry; Marcon, Didier; Guilloteau, Laurence; Nowak, Raymond

doi:10.1016/j.animal.2020.100157

Cited by 16 publications

(22 citation statements)

References 38 publications

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“…Although merino male lambs had higher compliance with the feed, it showed a decrease in the 4th period, and the antioxidant level increased significantly during the weaning period. This finding, which is valid for TAS, is also similar to the results of research showing that Roman lambs develop high antioxidant capacity during the suckling period (Mialon et al 2021). In related to mean TAS values between groups obtained from lambs in all feeding periods and during the experiment at the highest level in MFL and later in MML can be explained the fact that Merino lambs are better adapted to feed and reach higher antioxidant capacity than Akkaraman lambs during their developmental stages.…”

Section: Discussionsupporting

confidence: 90%

Doğum-Sütten Kesim Dönemi Aralığında Besiye Alınan Kuzularda Beslenme Dönemlerinin Oksidatif Stres Düzeyleri Üzerindeki Etkileri

Budak

DAŞ

Çamkerten

et al. 2022

Kocatepe Veterinary Journal

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In this study were used 40 newborn singleton Akkaraman and Merino lambs with 4 trial groups consisting of selected 10 lambs homogeneous according to race and gender. Trial was carried out 100 days, covering 5 feeding periods with 21-day periods from the birth of lambs. The lambs were fed with lamb starter feed for the first two months, then with lamb grower feed ad-libitum and 250 g/day/head dry alfalfa hay. At the end of the study; it was determined that the lowest total antioxidant status (TAS) was in Akkaraman male lambs, the highest was in Merino’s female, and it was found higher in Merino females than males (P

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Section: Discussionsupporting

confidence: 90%

Doğum-Sütten Kesim Dönemi Aralığında Besiye Alınan Kuzularda Beslenme Dönemlerinin Oksidatif Stres Düzeyleri Üzerindeki Etkileri

Budak

DAŞ

Çamkerten

et al. 2022

Kocatepe Veterinary Journal

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“…Several previous works reported impaired early growth rate in lambs submitted to arti cial rearing compared with mothering (12,22). On the contrary, in the present study, the post-weaning ADG was signi cantly higher for the ART group, and appeared more variable in the MOT group, also after weaning.…”

Section: Performance and Sanitary Status Of Mothered And Arti Cially-...contrasting

confidence: 83%

“…Although the presence of the dam is of importance for the newborn gut microbiota inoculation and its health and welfare, arti cial rearing systems, i.e., separating newborns from their mothers and feeding them with milk replacer, have been developed in ovine. This is due to the selection of proli c breeds such as Romane breed with ewes giving birth up to 3 or even 4 lambs, because of the important economic impact of reproductive e ciency in sheep, particularly for meat production (12). However, large litter ewes do not have enough milk to nurse all their lambs until weaning, which leads to the development of arti cial rearing systems.…”

Section: Introductionmentioning

confidence: 99%

Effects of rearing mode on gastro-intestinal microbiota and development, immunocompetence, sanitary status and growth performance of lambs from birth to two months of age

Dunière

Ruiz

Lebbaoui

et al. 2022

Preprint

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Background: Artificial rearing system, commonly used in prolific sheep breeds, is associated to increased mortality and morbidity rates before weaning, which might be linked to perturbations in digestive tract maturation, including microbiota colonization. This study evaluated the effect of rearing mode (mothered or artificially reared) on the establishment of the rumen and intestinal microbiome of lambs from birth to weaning. We also measured immunological and zootechnical parameters to assess lambs’ growth and health. GIT anatomy as well as rumen and intestinal epithelium gene expression were also analysed on weaned animals to assess possible long-term effects of the rearing practice. Results: Total VFA concentrations were higher in mothered lambs at 2 months of age, while artificially-reared lambs had lower average daily gain, a more degraded sanitary status and lower serum IgG concentration in the early growth phase. Metataxonomic analysis revealed higher richness of bacterial and eukaryote populations in mothered vs artificially-reared lambs in both Rumen and Feces. Beta diversity analysis indicated an evolution of rumen and fecal bacterial communities in mothered lambs with age, not observed in artificially-reared lambs. Important functional microorganisms such as the cellulolytic bacterium Fibrobacter succinogenes and rumen protozoa did not establish correctly before weaning in artificially-reared lambs. Enterobacteriaceae and Escherichia coli were dominant in the fecal microbiota of mothered lambs, but main E. coli virulence genes were not found differential between the two groups, suggesting they are commensal bacteria which could exert aprotective effect against pathogens. The fecal microbiota of artificially-reared lambs had a high proportion of lactic acid bacteria taxa. No difference was observed in mucosa gene expression in the two lamb groups after weaning. Conclusions: The rearing mode influences gastrointestinal microbiota and health-associated parametersin offspring in early life: rumen maturation was impaired in artificially-reared lambs which also presented altered sanitary status and gut dysbiosis. The first month of age is thus a critical period where the gastrointestinal tract environment and microbiota are particularly unstable and special care should be taken in the management of artificially fed newborn ruminants.

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“…In sheep production, artificial rearing is a common practice for prolific breeds in which supernumerary lambs are separated from their mother at very early age (0–2 d after birth) and fed milk replacer. This practice presents several detrimental short- and long-term effects for the young animals ( 21 ) , and strategies are currently being studied in order to reduce the impact of mother separation on the lamb's immunity, growth and performance and microbial digestive establishment ( 22 , 23 ) . Live yeast-based feed additives have been shown to enhance the stabilisation of rumen microbiota during challenging periods ( 24 , 25 ) .…”

Section: Introductionmentioning

confidence: 99%

A live yeast supplementation to gestating ewes improves bioactive molecule composition in colostrum with no impact on its bacterial composition and beneficially affects immune status of the offspring

et al. 2022

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Colostrum quality is of paramount importance in the management of optimal ruminant growth and infectious disease prevention in early life. Live yeast supplementation effect during the last month of gestation was evaluated on ewes’ colostrum composition. Two groups of ewes (n = 14) carrying twin lambs were constituted and twins were separated into groups (mothered or artificially fed) 12 h after birth. Nutrient, oligosaccharides (OS), IgG and lactoferrin concentrations were measured over 72 h after lambing, and bacterial community was described in colostrum collected at parturition (T0). Immune passive transfer was evaluated through IgG measurement in lamb serum. In both groups, colostral nutrient, OS concentrations and IgG concentrations in colostrum and lamb serum decreased over time (P < 0⋅01), except for lactose, which slightly increased (P < 0⋅001), and lactoferrin, which remained stable. Bacterial population was stable over time with high relative abundances of Aerococcaceae, Corynebacteriaceae, Moraxellaceae and Staphylococcaceae in T0 colostrum. No effect of supplementation was observed in nutrient and lactoferrin concentrations. In supplemented ewes, the level of colostral IgG was higher at T0 and a higher level of serum IgG was observed in lambs born from supplemented mothers and artificially fed, while no effect of supplementation was observed in the mothered lamb groups. Using a metabolomic approach, we showed that supplementation affected OS composition with significantly higher levels of colostral Neu-5Gc compounds up to 5 h after birth. No effect of supplementation was observed on bacterial composition. Our data suggest that live yeast supplementation offsets the negative impact of early separation and incomplete colostrum feeding in neonate lambs.

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Short- and mid-term effects on performance, health and qualitative behavioural assessment of Romane lambs in different milk feeding conditions

Cited by 16 publications

References 38 publications

Doğum-Sütten Kesim Dönemi Aralığında Besiye Alınan Kuzularda Beslenme Dönemlerinin Oksidatif Stres Düzeyleri Üzerindeki Etkileri

Doğum-Sütten Kesim Dönemi Aralığında Besiye Alınan Kuzularda Beslenme Dönemlerinin Oksidatif Stres Düzeyleri Üzerindeki Etkileri

Effects of rearing mode on gastro-intestinal microbiota and development, immunocompetence, sanitary status and growth performance of lambs from birth to two months of age

A live yeast supplementation to gestating ewes improves bioactive molecule composition in colostrum with no impact on its bacterial composition and beneficially affects immune status of the offspring

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