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Lagrange S, MacAdam JW, Stegelmeier B, Villalba JJ. Grazing diverse combinations of tanniferous and nontanniferous legumes: implications for foraging behavior, performance, and hair cortisol in beef cattle. J Anim Sci 2021; 99:skab291. [PMID: 34657159 PMCID: PMC8575690 DOI: 10.1093/jas/skab291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 10/14/2021] [Indexed: 11/14/2022] Open
Abstract
A diversity of forages with different types and concentrations of nutrients and plant secondary compounds may lead to complementary relationships that enhance cattle performance and welfare. We determined whether grazing combinations of tanniferous legumes (Lotus corniculatus, birdsfoot trefoil [BFT], Onobrychis viciifolia, sainfoin [SF]), and alfalfa [ALF] (Medicago sativa) influence foraging behavior, performance, and hair cortisol concentration in beef cattle compared with grazing the same legumes as monocultures. Twenty-one pairs of heifers grazed three spatial replications of seven treatments: monocultures of BFT, SF, or ALF, and all possible two- and three-way choices among strips of these legumes: SF-BFT, ALF-BFT, ALF-SF, and ALF-SF-BFT in two periods of 25 d each (adaptation phase + experimental period) during two consecutive years. The lowest incidence of grazing events occurred in the BFT treatment (42.0% of the total scans recorded; P < 0.10), with the rest of the treatments ranging between 47.8% (SF-BFT) and 52.6% (ALF-SF) of the total scans recorded. Heifers selected a varied diet, preferring SF over BFT or ALF in a 46:27:27 ratio for the three-way choice, and in a 70:30 ratio for both two-way choices. Heifers preferred BFT over ALF (62:38 ratio) in a two-way choice. All treatments followed similar daily grazing patterns (P > 0.10), with two major grazing events (1 h after sunrise and 3 h before dark). No differences among treatments were observed for the number of steps taken by heifers on a daily basis, motion index, or the percentage of time heifers spent standing (1,599, 5,356, and 45.3%, respectively; P > 0.10), suggesting that heifers on choice treatments did not invest extra time in walking, searching, or patch switching activities relative to heifers grazing monocultures. Heifers grazing the three-way choice gained more body weight (1.27 kg/d) than the average gains observed for animals grazing in all legume monocultures (1.00 kg/d; P = 0.014) or two-way choices (0.97 kg/d; P = 0.007), suggesting a synergism among pasture species for the treatment with the highest diversity. No differences in hair cortisol concentration were observed among treatments, with values ranging between 1.4 (BFT) and 2.12 ng/g (three-way choice; P > 0.10). Thus, forage diversity has the potential to enhance animal performance without affecting grazing efficiency, likely explained by the spatial arrangement of the forage species presented in the study.
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Affiliation(s)
- Sebastian Lagrange
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University, Logan, UT 84322, USA
- Estación Experimental Agropecuaria Bordenave, Instituto Nacional de Tecnología Agropecuaria, Bordenave, Buenos Aires 8187, Argentina
| | - Jennifer W MacAdam
- Department of Plant, Soil & Climate, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84322, USA
| | - Bryan Stegelmeier
- Poisonous Plant Research Laboratory, Agricultural Research Service, USDA, Logan, UT 84341, USA
| | - Juan J Villalba
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University, Logan, UT 84322, USA
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Lagrange S, Beauchemin KA, MacAdam J, Villalba JJ. Grazing diverse combinations of tanniferous and non-tanniferous legumes: Implications for beef cattle performance and environmental impact. Sci Total Environ 2020; 746:140788. [PMID: 32758982 DOI: 10.1016/j.scitotenv.2020.140788] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/03/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
We tested the effect of increasingly diverse combinations of tanniferous legumes (birdsfoot trefoil-BFT, sainfoin-SF) and alfalfa (ALF) on cattle performance, methane (CH4) emissions and nitrogen (N) balance. Pairs of heifers (401 ± 49.6 kg) grazed three spatial replications of 7 treatments (n = 3/treatment): monocultures (BFT, SF, ALF) and all possible 2- and 3-way choices among strips of these legumes in a completely randomized block design of two 15-d periods during 2 consecutive years. Average daily gains (ADG) of heifers grazing the tanniferous legumes (1.05 kg/d) were 40% greater (p < 0.10) than of heifers grazing ALF (0.74 kg/d) during the first year. Heifers grazing the 3-way choice had greater intakes (10.4 vs 7.8 kg/d; p = 0.064) and ADG (1.21 vs. 0.95 kg/d, p = 0.054) than those grazing monocultures, suggesting a nutritional synergism among legumes. The average CH4 emissions for legume monocultures vs. 2- and 3- way choices was 222 vs. 202 and 162 g/kg BW gain (p > 0.10), respectively. For heifers grazing SF and BFT compared with ALF, blood urea N was less (14.3 and 16.8 vs 20.8 mg/dL; p < 0.05) as were urinary N concentrations (3.7 and 3.5 vs 6.0 g/L; p < 0.05), but fecal N concentrations were greater (34.5 and 35.5 vs 30.5 g/kg, respectively; p < 0.05). Combining both tanniferous legumes (SF-BFT) led to the greatest declines in urinary N (2.24 g/L) and urea-N (1.71 g/L) concentration, suggesting that different types of tannins in different legumes result in associative effects that enhance N economy. In addition, heifers grazing 3-way choices partitioned less N into urine (40.7 vs 50.6%; p = 0.037) and retained more N (36.1 vs 25.2%, p = 0.046) than heifers grazing monocultures. In summary, combinations of tanniferous legumes with alfalfa improved animal performance and reduced environmental impacts relative to monocultures, resulting in a more sustainable approach to beef production in pasture-based finishing systems.
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Affiliation(s)
- Sebastian Lagrange
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University, Logan, UT 84322, USA; Estación Experimental Agropecuaria Bordenave, Instituto Nacional de Tecnología Agropecuaria. Bordenave, Buenos Aires 8187, Argentina.
| | - Karen A Beauchemin
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, AB T1K 4H3, Canada
| | - Jennifer MacAdam
- Department of Plant, Soil & Climate, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84322, USA
| | - Juan J Villalba
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University, Logan, UT 84322, USA
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Lagrange S, MacAdam J, Villalba JJ. PSV-11 Grazing diverse combination of tanniferous and non-tanniferous legumes: Implications for foraging behavior, performance and hair cortisol in beef cattle. J Anim Sci 2020. [DOI: 10.1093/jas/skaa278.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
We tested the effect of increasingly diverse combinations of tanniferous legumes (birdsfoot trefoil-BFT, sainfoin-SF) and alfalfa (ALF) on cattle foraging behavior, performance and hair cortisol concentration. Pairs of heifers (401 ± 49.6 kg) grazed three spatial replications of seven treatments (n = 3/treatment): monocultures (BFT, SF, ALF) and all possible 2- and 3-way choices among strips of these legumes in a completely randomized block design in two 25-d periods during 2 consecutive years. The fewest grazing events occurred in BFT (42.0% of the total scans recorded; P < 0.10), with other treatments ranging between 47.8 (SF-BFT) and 52.6% (ALF-SF) of the total scans recorded. Heifers selected a varied diet, preferring SF over BFT or ALF in 46:27:27 and 70:30 ratios (3- and 2-way choice, respectively) and preferred BFT over ALF (62:38 ratio). All treatments followed similar daily grazing patterns (P >0.10), with two major grazing events (1 hour after sunrise and 3 hours before sunset). No differences among treatments were observed for the number of steps taken, motion index, or percentage of time spent standing (1,600, 5,356, and 45.3%, respectively; P >0.10), suggesting that heifers in choice treatments did not invest extra time in walking, searching or patch-switching activities relative to monoculture treatments. Heifers in the 3-way choice gained more BW (1.27 Kg/d) than in monocultures (1.00 kg/d; P = 0.014), or 2-way choices (0.97 kg/d; P = 0.007), suggesting nutritional synergism among legumes in the treatment of greatest diversity. No differences in hair cortisol concentration were observed among treatments, with values ranging between 1.40 (BFT) and 2.12 ng/g (3-way choice) (P >0.10). Thus, forage diversity enhanced animal performance, likely driven by interactions among condensed tannins and dietary protein, without affecting hair cortisol levels or grazing efficiency, explained by the spatial arrangement (strips) of the forage species presented.
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Affiliation(s)
| | - Jennifer MacAdam
- Department of Plant, Soil & Climate, College of Agriculture and Applied Sciences, Utah State University
| | - Juan J Villalba
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University
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Lagrange S, Beauchemin K, MacAdam J, Villalba JJ. 94 President Oral Presentation Pick: Grazing diverse combinations of tanniferous and non-tanniferous legumes: Implications for beef cattle performance and environmental impact. J Anim Sci 2020. [DOI: 10.1093/jas/skaa278.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
We tested the effect of increasingly diverse combinations of tanniferous legumes (birdsfoot trefoil-BFT, sainfoin-SF) and alfalfa (ALF) on cattle performance, methane (CH4) emissions and nitrogen (N) balance. Pairs of heifers (401 ± 49.6 kg) grazed three spatial replications of 7 treatments (n = 3/treatment): monocultures (BFT, SF, ALF) and all possible 2- and 3-way choices among strips of these legumes in a completely randomized block design of two 15-d periods during 2 consecutive years. Average daily gains (ADG) of heifers grazing the tanniferous legumes (1.05 kg/d) were 40% greater (P < 0.10) than of heifers grazing ALF (0.74 kg/d) during the first year. Heifers grazing the 3-way choice had greater intakes (10.4 vs 7.8 kg/d; P = 0.064) and ADG (1.21 vs. 0.95 kg/d, P = 0.054) than those grazing monocultures, suggesting a nutritional synergism among legumes. The average CH4 emissions for legume monocultures vs. 2- and 3-way choices was 222 vs. 202 and 162 g/kg BW gain (P > 0.10), respectively. For heifers grazing SF and BFT compared with ALF, blood urea N was less (14.3 and 16.8 vs 20.8 mg/dL; P < 0.05) as were urinary N concentrations (3.7 and 3.5 vs 6.0 g/L; P < 0.05), but fecal N concentrations were greater (34.5 and 35.5 vs 30.5 g/kg, respectively; P < 0.05). Combining both tanniferous legumes (SF-BFT) led to the greatest declines in urinary N (2.24 g/L) and urea-N (1.71 g/L) concentration, suggesting that different types of tannins in different legume species result in associative effects that enhance N economy. In addition, heifers grazing 3-way choices partitioned less N into urine (40.7 vs 50.6%; P = 0.037) and retained more N (36.1 vs 25.2%, P = 0.046) than heifers grazing monocultures. In summary, combinations of tanniferous legumes with alfalfa improved animal performance and reduced environmental impacts relative to monocultures, resulting in a more sustainable approach to beef production in pasture-based finishing systems.
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Affiliation(s)
| | - Karen Beauchemin
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada
| | - Jennifer MacAdam
- Department of Plant, Soil & Climate, College of Agriculture and Applied Sciences, Utah State University
| | - Juan J Villalba
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University
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Lagrange S, Villalba JJ. Tannin-containing legumes and forage diversity influence foraging behavior, diet digestibility, and nitrogen excretion by lambs1,2. J Anim Sci 2019; 97:3994-4009. [PMID: 31372657 PMCID: PMC6735941 DOI: 10.1093/jas/skz246] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 07/31/2019] [Indexed: 11/14/2022] Open
Abstract
Diverse combinations of forages with different nutrient profiles and plant secondary compounds may improve intake and nutrient utilization by ruminants. We tested the influence of diverse dietary combinations of tannin- (sainfoin-Onobrichis viciifolia; birdsfoot trefoil-Lotus corniculatus) and non-tannin- (alfalfa-Medicago sativa L.) containing legumes on intake and diet digestibility in lambs. Freshly cut birdsfoot trefoil, alfalfa, and sainfoin were offered in ad libitum amounts to 42 lambs in individual pens assigned to 7 treatments (6 animals/treatment): 1) single forage species (sainfoin [SF], birdsfoot trefoil [BFT], and alfalfa [ALF]), 2) all possible 2-way choices of the 3 forage species (alfalfa-sainfoin [ALF-SF], alfalfa-birdsfoot trefoil [ALF-BFT], and sainfoin-birdsfoot trefoil [SF-BFT]), or 3) a choice of all 3 forages (alfalfa-sainfoin-birdsfoot trefoil [ALF-SF-BFT]). Dry matter intake (DMI) was greater in ALF than in BFT (P = 0.002), and DMI in SF tended to be greater than in BFT (P = 0.053). However, when alfalfa was offered in a choice with either of the tannin-containing legumes (ALF-SF; ALF-BFT), DMI did not differ from ALF, whereas DMI in SF-BFT did not differ from SF (P > 0.10). When lambs were allowed to choose between 2 or 3 legume species, DMI was greater (36.6 vs. 33.2 g/kg BW; P = 0.038) or tended to be greater (37.4 vs. 33.2 g/kg BW; P = 0.067) than when lambs were fed single species, respectively. Intake did not differ between 2- or 3-way choice treatments (P = 0.723). Lambs preferred alfalfa over the tannin-containing legumes in a 70:30 ratio for 2-way choices, and alfalfa > sainfoin > birdsfoot trefoil in a 53:33:14 ratio for the 3-way choice. In vivo digestibility (DMD) was SF > BFT (72.0% vs. 67.7%; P = 0.012) and DMD in BFT tended to be greater than in ALF (64.6%; P = 0.061). Nevertheless, when alfalfa was offered in a choice with either sainfoin or birdsfoot trefoil (ALF-SF; ALF-BFT), DMD was greater than ALF (P < 0.001 and P = 0.007, respectively), suggesting positive associative effects. The SF treatment had lower blood urea nitrogen and greater fecal N/N intake ratios than the ALF, BFT, or ALF-BFT treatments (P < 0.05), implying a shift in the site of N excretion from urine to feces. In conclusion, offering diverse combinations of legumes to sheep enhanced intake and diet digestibility relative to feeding single species, while allowing for the incorporation of beneficial bioactive compounds like condensed tannins into the diet.
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Affiliation(s)
- Sebastian Lagrange
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University, Logan, UT
- Estación Experimental Agropecuaria Bordenave, Instituto Nacional de Tecnología Agropecuaria. Bordenave, Buenos Aires, Argentina
| | - Juan J Villalba
- Department of Wildland Resources, Quinney College of Natural Resources, Utah State University, Logan, UT
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Lagrange S, Montaudié H, Fontas E, Bahadoran P, Lacour J, Passeron T. Comparison of microneedling and full surface erbium laser dermabrasion for autologous cell suspension grafting in nonsegmental vitiligo: a randomized controlled trial. Br J Dermatol 2019; 180:1539-1540. [DOI: 10.1111/bjd.17464] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Lagrange
- Department of Dermatology Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
| | - H. Montaudié
- Department of Dermatology Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
- INSERM U1065, C3M Team 12 Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
| | - E. Fontas
- Department of Research and Innovation Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
| | - P. Bahadoran
- Department of Dermatology Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
| | - J.‐P. Lacour
- Department of Dermatology Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
| | - T. Passeron
- Department of Dermatology Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
- INSERM U1065, C3M Team 12 Centre Hospitalier Universitaire Nice Université Nice Côte d'Azur Nice France
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Fillol A, Lagrange S, Benoît M, Ridde V, Cloos P. Accès aux soins de santé des femmes enceintes et des enfants migrants au Québec et en France : tirer des leçons d’ailleurs. Rev Epidemiol Sante Publique 2019. [DOI: 10.1016/j.respe.2018.12.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Lagrange S, Guevara Ballesteros R, Beauchemin K, MacAdam J, Villalba J. PSXI-31 Methane emissions by cattle grazing tannin-containing legumes. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Lagrange
- Utah State University and INTA EEA Bordenave, Buenos Aires, Argentina, Logan, UT, United States
| | | | - K Beauchemin
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre,Lethbridge, AB, Canada
| | - J MacAdam
- Utah State University,Logan, UT, United States
| | - J Villalba
- Utah State University,Logan, UT, United States
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Kelati A, Lagrange S, Le Duff F, Lacour JP, Benasaid R, Breaud J, Passeron T. Laser hair removal after surgery vs. surgery alone for the treatment of pilonidal cysts: a retrospective case-control study. J Eur Acad Dermatol Venereol 2018; 32:2031-2033. [PMID: 29633368 DOI: 10.1111/jdv.14991] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 03/15/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Based on the presumed role of hair in pilonidal cyst (PNC) pathogenesis, laser epilation has been used to decrease recurrences. However, most of the data rely on case reports and uncontrolled series, and the rare controlled studies reported conflicting results. The objective of this study was to investigate the efficacy of laser hair removal (LHR) to decrease the recurrence rate after surgery of PNC vs. surgery alone. METHODS We conducted a retrospective monocentric case-control study in the departments of Pediatric Surgery and Laser Center of Dermatology of the University Hospital of Nice in France from January 2010 to June 2017. We included all patients with PNC who had surgery during the period, and we compared patients who had LHR after surgery to those having surgery alone. The main outcome was the prevalence and number of recurrences of PNC in each group. RESULTS Twelve patients - eight treated with alexandrite laser and four patients with Nd : YAG - were included in the cases group; 29 patients treated with surgery alone were included in the control group. The mean and the median number of laser sessions were 4.2 and 5, respectively (extremes 1-10). The postsurgical recurrence rate without LHR was 51.7%, and their number varied from 1 to 3. A significant decrease in the recurrence rate was observed after LHR (8.3%) compared to control group (P < 0.001). The median duration before recurrence was 14 months for surgery alone. The median follow-up was 18 months (1-30 months) for LHR group and 30 months (6-72 months) for surgery alone group. Two patients had abnormal healing or persistent sinus after surgery alone compared to none in the group who undergone laser procedure after surgery. CONCLUSIONS Laser hair removal decreases the risk of delayed healing and of recurrences of PNL after surgical procedure.
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Affiliation(s)
- A Kelati
- Université Nice Cote d'Azur, Centre Hospitalier Universitaire Nice, Department of Dermatology, Nice, France
| | - S Lagrange
- Université Nice Cote d'Azur, Centre Hospitalier Universitaire Nice, Department of Dermatology, Nice, France
| | - F Le Duff
- Université Nice Cote d'Azur, Centre Hospitalier Universitaire Nice, Department of Dermatology, Nice, France
| | - J-P Lacour
- Université Nice Cote d'Azur, Centre Hospitalier Universitaire Nice, Department of Dermatology, Nice, France
| | - R Benasaid
- Université Nice Cote d'Azur, Hôpitaux Pédiatriques de Nice CHU-Lenval, Department of Pediatric Surgery, Nice, France
| | - J Breaud
- Université Nice Cote d'Azur, Hôpitaux Pédiatriques de Nice CHU-Lenval, Department of Pediatric Surgery, Nice, France
| | - T Passeron
- Université Nice Cote d'Azur, Centre Hospitalier Universitaire Nice, Department of Dermatology, Nice, France.,Université Nice Côte d'Azur, INSERM U1065, C3M, Team 12, Nice, France
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Arelovich HM, Lagrange S, Torre R, Martinez MF, Laborde HE. Feeding value of whole raw soya beans as a protein supplement for beef cattle consuming low-quality forages. J Anim Physiol Anim Nutr (Berl) 2018; 102:e421-e430. [PMID: 28608536 DOI: 10.1111/jpn.12761] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 05/04/2017] [Indexed: 11/28/2022]
Abstract
Experiments (Exp) I and II were conducted to compare raw whole soya beans (WSB), roasted (rWSB) or other protein sources as supplements of low-quality forages fed ad libitum to beef cattle, upon DM intake (DMI), ruminal and blood parameters, and animal performance. Exp I: treatments for wheat straw fed to four ruminally cannulated steers were (i) Control-WS: no supplement; (ii) WSB-WS: whole soya beans; (iii) rWSB-WS: roasted WSB; and (iv) SBM-WS: soybean meal-wheat midds mixture; all fed at 1.4 kg DM/day. Exp II: 12 steers grazed deferred grain sorghum (DS) receiving these treatments: (i) Control-DS: no supplement; (ii) WSB-DS: 1.26 kg DM/day whole soya beans; and (iii) SFM-DS: 1.35 kg DM/day of sunflower meal. In Exp I, WS DMI resulted 47, 52 and 41% greater for WSB-WS, rWSB-WS and SBM-WS, respectively, than Control-WS (p < .05). In Exp II, the DMI of DS was unaffected by supplementation; a substitution of DS by supplement was found for WSB-DS (p < .05); however, total diet and digestible DMI increased with supplementation (p < .05). Rumen pH in Exp I remained unaffected by supplementation, but N-NH3 as well as blood urea-N in Exp II increased (p < .05). In Exp II, average daily weight gains improved similarly with both supplements compared with Control-DS. Additionally, feed-to-gain ratio decreased (p < .05), being lower for WSB-DS (8.3) vs. SFM-DS (9.9). Roasting effects of WSB as a supplement for low-quality forages were not detected, and all protein sources increased total diet DMI and forage utilization. Only moderate cattle weight gains could be expected for unsupplemented DS.
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Affiliation(s)
- H M Arelovich
- Departamento de Agronomía, Universidad Nacional del Sur, Bahía Blanca, Argentina
- Centro de Recursos Naturales Renovables de la Zona Semiárida, CERZOS - CONICET, Bahía Blanca, Argentina
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires - CIC, Bahía Blanca, Argentina
| | - S Lagrange
- Instituto Nacional de Tecnología Agropecuaria INTA EEA Bordenave, Bordenave, Argentina
| | - R Torre
- Instituto Nacional de Tecnología Agropecuaria INTA EEA Bordenave, Bordenave, Argentina
| | - M F Martinez
- Departamento de Agronomía, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - H E Laborde
- Departamento de Agronomía, Universidad Nacional del Sur, Bahía Blanca, Argentina
- Centro de Recursos Naturales Renovables de la Zona Semiárida, CERZOS - CONICET, Bahía Blanca, Argentina
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Kelati A, Passeron T, Lacour J, Bréaud J, Lagrange S. Intérêt du laser épilatoire post-chirurgical dans la prévention des récidives de kyste pilonidal : une étude cas-témoin monocentrique niçoise. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kelati A, Lagrange S, LeDuff F, Lacour J, Passeron T. Traitement d’un cas d’élastome perforant serpigineux par laser CO 2 fractionné. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nguyen S, Chuah S, Fontas E, Cavalié-Meiffren M, Montaudié H, Lagrange S, Lacour JP, Thng S, Passeron T. Traitement du vitiligo non segmentaire évolutif par atorvastatine : étude contrôlée randomisée prospective et bicentrique. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lorgeou A, Perrillat Y, Gral N, Lagrange S, Lacour JP, Passeron T. Comparison of two picosecond lasers to a nanosecond laser for treating tattoos: a prospective randomized study on 49 patients. J Eur Acad Dermatol Venereol 2017; 32:265-270. [DOI: 10.1111/jdv.14492] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 07/12/2017] [Indexed: 11/29/2022]
Affiliation(s)
- A. Lorgeou
- Department of Dermatology; Université Côte d'Azur; Centre Hospitalier Universitaire Nice; Nice France
| | - Y. Perrillat
- Centre Dermatologique Esthétique et Laser; Grenoble France
| | - N. Gral
- Centre Dermatologique Esthétique et Laser; Grenoble France
| | - S. Lagrange
- Department of Dermatology; Université Côte d'Azur; Centre Hospitalier Universitaire Nice; Nice France
| | - J.-P. Lacour
- Department of Dermatology; Université Côte d'Azur; Centre Hospitalier Universitaire Nice; Nice France
| | - T. Passeron
- Department of Dermatology; Université Côte d'Azur; Centre Hospitalier Universitaire Nice; Nice France
- Université Côte d'Azur. INSERM U1065; tema 12, C3M Nice France
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Lagrange S, Beauchemin KA, MacAdam JW, Villalba JJ. 290 Effects of grazing diverse combinations of sainfoin, birdsfoot trefoil, and alfalfa on beef cow performance and environmental impacts. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nguyen S, Fraitag S, Cardot-Leccia N, Lagrange S, Trastour C, Passeron T, Croce S, Coindre J, Lacour J, Montaudié H. Prepubertal vulvar fibroma, a rare entity little known to dermatologists: report of two cases. J Eur Acad Dermatol Venereol 2017; 31:e448-e449. [DOI: 10.1111/jdv.14283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- S. Nguyen
- Department of Dermatology; Archet 2 Hospital; University Hospital of Nice; 06200 Nice France
| | - S. Fraitag
- Department of Pathology; Necker-Enfant Malades Hospital; APHP; 75015 Paris France
| | - N. Cardot-Leccia
- Department of Pathology; Pasteur 1 Hospital; University Hospital of Nice; 06000 Nice France
| | - S. Lagrange
- Department of Dermatology; Archet 2 Hospital; University Hospital of Nice; 06200 Nice France
| | - C. Trastour
- Department of Gynecology Obstetrics; Archet 2; University Hospital of Nice; 06200 Nice France
| | - T. Passeron
- Department of Dermatology; Archet 2 Hospital; University Hospital of Nice; 06200 Nice France
| | - S. Croce
- Department of Pathology; Institut Bergonié; 33000 Bordeaux France
| | - J.M. Coindre
- Department of Pathology; Institut Bergonié; 33000 Bordeaux France
| | - J.P. Lacour
- Department of Dermatology; Archet 2 Hospital; University Hospital of Nice; 06200 Nice France
| | - H. Montaudié
- Department of Dermatology; Archet 2 Hospital; University Hospital of Nice; 06200 Nice France
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Lagrange S, Dordain Bigot M, Pouaha J. Cas cliniques des seniors : vos problèmes sont les nôtres. Discussion à partir de 8 cas cliniques. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Assémat E, Lagrange S, Picozzi A, Jauslin HR, Sugny D. Complete nonlinear polarization control in an optical fiber system. Opt Lett 2010; 35:2025-2027. [PMID: 20548374 DOI: 10.1364/ol.35.002025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We consider the counterpropagating interaction of a signal and a pump beam in an isotropic optical fiber. On the basis of recently developed mathematical techniques, we show that an arbitrary state of polarization of the signal beam can be converted into any other desired state of polarization. On the other hand, an unpolarized signal beam may be repolarized into two specific states of polarization, without loss of energy. Both processes of repolarization and polarization conversion may be controlled by adjusting the polarization state of the backward pump.
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Affiliation(s)
- E Assémat
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 5209 CNRS-Université de Bourgogne, Dijon, France
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Lagrange S, Sugny D, Picozzi A, Jauslin HR. Singular tori as attractors of four-wave-interaction systems. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 81:016202. [PMID: 20365441 DOI: 10.1103/physreve.81.016202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Indexed: 05/29/2023]
Abstract
We study the spatiotemporal dynamics of the Hamiltonian four-wave interaction in its counterpropagating configuration. The numerical simulations reveal that, under rather general conditions, the four-wave system exhibits a relaxation process toward a stationary state. Considering the Hamiltonian system associated to the stationary state, we provide a global geometrical view of all the stationary solutions of the system. The analysis reveals that the stationary state converges exponentially toward a pinched torus of the Hamiltonian system in the limit of an infinite nonlinear medium. The singular torus thus plays the role of an attractor for the spatiotemporal wave system. The topological properties of the singular torus confer a robust character to the stationary solution when the boundary conditions or the length of the nonlinear medium are modified. Furthermore, an adiabatic approach of the boundary conditions reveals that singular tori also play a major role for the description of the spatiotemporal dynamics of the wave system.
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Affiliation(s)
- S Lagrange
- Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), UMR 5209, CNRS-Université de Bourgogne, Dijon, France
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Sugny D, Picozzi A, Lagrange S, Jauslin HR. Role of singular tori in the dynamics of spatiotemporal nonlinear wave systems. Phys Rev Lett 2009; 103:034102. [PMID: 19659283 DOI: 10.1103/physrevlett.103.034102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2009] [Indexed: 05/28/2023]
Abstract
We show that the peculiar topological properties inherent to singular tori play a major role in the spatiotemporal dynamics of counterpropagating nonlinear waves. Under rather general conditions, these Hamiltonian wave systems exhibit a relaxation process towards a stationary state. We show that this stationary state converges exponentially towards the singular torus of the associated Liouville-integrable Hamiltonian system in the limit of an infinite medium. The singular torus then appears as an attractor for the infinite dimensional dynamical system, a feature which is illustrated by several key models of spatiotemporal wave interactions.
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Affiliation(s)
- D Sugny
- Institut Carnot de Bourgogne, UMR CNRS 5027, BP 47870, 21078 Dijon, France.
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Camara A, Bécherel PA, Bussel A, Lagrange S, Chosidow O, Joly P, Piette JC, Francès C. [Resistant acquired bullous epidermolysis with severe ocular involvement: the success of extracorporeal photochemotherapy]. Ann Dermatol Venereol 1999; 126:612-5. [PMID: 10530350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
BACKGROUND Epidermolysis bullosa aquisista can leave several functional sequelae. The lesions sometimes resist treatment. CASE REPORT We report a case of a 25-year-old young man presenting with a severe epidermolysis bullosa acquisita confirmed by the electronic immunomicroscopy. He had a major ocular involvement with symblepharon and cicatricial synechial lesions. He was almost blind because of corneal scars. All immunosuppressive treatments had failed: systemic corticoids, cyclosporin, azathioprine. The introduction of extracorporeal photochemotherapy resulted in the healing of the lesions, after a total of 32 procedures. All treatment are now stopped, and the lesions are purely cicatricial, without any relapse of the disease since 9 months. Corneal grafts are now under process, to try to recover a part of the lost visual acuity. DISCUSSION This case demonstrates the efficacy of extracorporeal chemotherapy to be tried in case other treatments failed.
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Affiliation(s)
- A Camara
- Service de Dermatologie et Vénéréologie, CHU Donka, Guinée
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Bécherel PA, Piette JC, Laporte JL, Lagrange S, Francès C. La NO-synthase inductible est exprimée dans les kératinocytes au cours du lupus discoïde. Rev Med Interne 1998. [DOI: 10.1016/s0248-8663(98)80214-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Frances C, Amoura Z, Lagrange S, Lê Thi Huong D, Cacoub P, Piette JC. Livedo et syndrome primaire des antiphospholipides. Rev Med Interne 1998. [DOI: 10.1016/s0248-8663(98)80073-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lagrange S, Chosidow O, Piette JC, Wechsler B, Godeau P, Frances C. A peculiar form of amicrobial pustulosis of the folds associated with systemic lupus erythematosus and other auto-immune diseases. Lupus 1997; 6:514-20. [PMID: 9256309 DOI: 10.1177/096120339700600607] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Amicrobial pustulosis of the folds is a new entity which was initially described in association with systemic lupus erythematosus (SLE). We report four cases of this rare pustulosis occurring in the course of various auto-immune disorders. Dermatological features were similar in all patients. The primary lesions were small pustules which coalesced and formed erosive areas underlined with pustular lesions. They were localized in the folds. Three of the four patients had also isolated pustules on the scalp. Spongiform pustules were histologically present. A primary bacterial or fungal infection was ruled out by cultures on appropriate media. Serum calcium level was normal. Associated auto-immune diseases were: systemic lupus erythematosus, incomplete systemic lupus erythematosus, 'idiopathic' thrombocytopenic purpura and myasthenia gravis without thymoma (one of each). The relationship between this peculiar form of pustulosis and autoimmunity remains to be elucidated. The pustulosis did not respond to antibiotics but disappeared with systemic or topical corticosteroids.
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Affiliation(s)
- S Lagrange
- Services de Médecine Interne, Groupe Hospitalier Pitié-Salpêtrière,Paris, France
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