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  1. Article: Promotion of Pregnant Merino Ewes' Welfare with the Introduction of a Drought- and High-Temperature-Resistant Cereal into Their Diet: Analysis of Tritordeum Meadow.

    Agüera, Estrella I / Requena, Lucía / García-Moreno, María B / Pérez-Priego, Manuel A / Requena, Francisco

    Animals : an open access journal from MDPI

    2023  Volume 13, Issue 19

    Abstract: ... indicators of animal welfare. A total of 150 pregnant Merino ewes (3-5 years) were randomly divided into two groups ( ...

    Abstract Tritordeum is a new cereal resistant to drought and high temperatures, and it is a very healthy crop. The aim of this study was to compare two different diets (tritordeum meadow vs. oat meadow) for grazing pregnant ewes to determine if there was any effect on the objective physiological indicators of animal welfare. A total of 150 pregnant Merino ewes (3-5 years) were randomly divided into two groups (
    Language English
    Publishing date 2023-10-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani13193155
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Promotion of Pregnant Merino Ewes’ Welfare with the Introduction of a Drought- and High-Temperature-Resistant Cereal into Their Diet

    Estrella I. Agüera / Lucía Requena / María B. García-Moreno / Manuel A. Pérez-Priego / Francisco Requena

    Animals, Vol 13, Iss 3155, p

    Analysis of Tritordeum Meadow

    2023  Volume 3155

    Abstract: ... indicators of animal welfare. A total of 150 pregnant Merino ewes (3–5 years) were randomly divided into two groups ( n ... influence on the physiological parameters of animal welfare studied in pregnant Merino ewes ...

    Abstract Tritordeum is a new cereal resistant to drought and high temperatures, and it is a very healthy crop. The aim of this study was to compare two different diets (tritordeum meadow vs. oat meadow) for grazing pregnant ewes to determine if there was any effect on the objective physiological indicators of animal welfare. A total of 150 pregnant Merino ewes (3–5 years) were randomly divided into two groups ( n = 75 each) to be fed with two different meadows, being evaluated during the spring season. Red blood cells count, haemoglobin, packed cell volume, white blood cell count, neutrophiles/lymphocytes ratio, lactate dehydrogenase, creatinine phosphokinase, aspartate aminotransferase, glucose, cortisol, total plasma proteins, albumin, globulins, albumin/globulins ratio, alkaline phosphatase, glutamate dehydrogenase, IgA, and IgG were determined. Overall, the results of this study indicate that the welfare of pregnant ewes fed with tritordeum meadow was better than that of pregnant ewes fed with oat meadow. Tritordeum meadow had a positive influence on the physiological parameters of animal welfare studied in pregnant Merino ewes. Therefore, tritordeum meadow can be considered a functional feed, as it has a beneficial effect on health beyond its basic nutritional value. Farmers are recommended to feed a cereal such as tritordeum grassland to their sheep, as it not only ensures that the animals benefit from all the nutrients, but also prevents diseases and improves their quality of life. In addition, the cereal’s resistance to fungal diseases makes it suitable for use in sustainable production systems with a reduced environmental footprint.
    Keywords cereal ; drought ; ewes ; functional food ; grazing ; physiological parameters ; Veterinary medicine ; SF600-1100 ; Zoology ; QL1-991
    Subject code 630
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Effects of the Addition of Pecan Nuts on the Nutritional Properties and Final Quality of Merino Lamb Burgers

    María Jesús Martín-Mateos / Lucía León / Alberto Ortiz / David Tejerina / Carmen Barraso / María Montaña López-Parra / Palmira Curbelo / Susana García-Torres

    Applied Sciences, Vol 13, Iss 6860, p

    2023  Volume 6860

    Abstract: This paper attempts to analyse lamb burgers from meat cuts of lower commercial value to which various amounts of freeze-dried pecan nuts (5%, 10% and 15%) were added to study the influence of the addition of pecans on the quality of the burger. One ... ...

    Abstract This paper attempts to analyse lamb burgers from meat cuts of lower commercial value to which various amounts of freeze-dried pecan nuts (5%, 10% and 15%) were added to study the influence of the addition of pecans on the quality of the burger. One hundred eight burgers were evaluated by means of physicochemical, sensory and microbiological analyses. The addition of pecan nuts mainly affected the meat’s fatty acid profile. Fat content was higher as the amount of pecan nuts was increased, and the monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) levels also increased ( p < 0.001), whereas the saturated fatty acid content decreased ( p < 0.001). Pecan nuts also proved able to increase the antioxidant capacity of the product, significantly reducing the oxidation values of lipids ( p < 0.001) and proteins ( p < 0.05). In general, no significant differences were identified in the sensory attributes under study. In conclusion, we found that the use of pecan nuts improves the nutritional content of the hamburgers without negatively affecting the technological or sensory properties.
    Keywords healthy ; unsaturated fatty acids ; antioxidant ; nutritive ; sensorial analysis ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 571
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Morphological study of Socorro Island Merino sheep and its crosses with hair breeds.

    Hernández, Juan Augusto / Lepe, Marissa / Macedo, Rafael / Arredondo, Victalina / Cortez, Carlos Eliseo / García, Luis Jorge / Prado, Omar

    Tropical animal health and production

    2017  Volume 49, Issue 1, Page(s) 173–178

    Abstract: A study was conducted with the objective to characterize the morphology of Socorro Island Merino ... Island Merino sheep were dolichocephalous, elipometric, with a convex curve rump, and with a high and low ... aptitude. It can be concluded that Socorro Island Merino sheep is a new biotype of the Merino breed ...

    Abstract A study was conducted with the objective to characterize the morphology of Socorro Island Merino sheep. A total of 67 sheep, 62 females, 26 purebred and 36 crossbred with hair breeds, and five males were scored for 10 body measurements in addition to live weight, and four racial and seven functional indices were calculated. The influence of sex and crossbreeding on the body measurements and indices was analyzed by one-way analysis of variance, and morphological harmony was determined using Spearman correlation. With exception of rump length, body measurements and live weight were significantly greater in males than in females. Sexual dimorphism was 1.21, with males being 78 % heavier than females. Socorro Island Merino sheep were dolichocephalous, elipometric, with a convex curve rump, and with a high and low morphological harmony for females and males, respectively. They had undefined zootechnical aptitude tended toward dairy phenotype as long as crossbreeding with hair breeds did not affect their functional or productive aptitude. It can be concluded that Socorro Island Merino sheep is a new biotype of the Merino breed, which is necessary to preserve and evaluate as a source of genetic characteristics such as adaptation to harsh environmental conditions.
    MeSH term(s) Animals ; Body Size ; Breeding ; Crosses, Genetic ; Female ; Hair ; Hybridization, Genetic ; Islands ; Male ; Mexico ; Sex Characteristics ; Sheep/physiology ; Sheep, Domestic ; Temperature
    Language English
    Publishing date 2017-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603363-5
    ISSN 1573-7438 ; 0049-4747
    ISSN (online) 1573-7438
    ISSN 0049-4747
    DOI 10.1007/s11250-016-1177-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Pregnancy and Litter Size, But Not Lamb Sex, Affect Feed Intake and Wool Production by Merino-Type Ewes.

    Ochoa Cordero, Manuel / Meza Herrera, César A / Vázquez García, Juan M / Stewart, Caroline A / Rosales Nieto, César A / Ochoa Alfaro, Ana E / Purvis, Ian W / Cuevas Reyes, Venancio / Lee Rangel, Héctor A / Martin, Graeme B

    Animals : an open access journal from MDPI

    2019  Volume 9, Issue 5

    Abstract: ... affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes ...

    Abstract Two experiments (Australia and Mexico) tested whether feed intake (FI) and wool production (WP) are affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes were either not pregnant (NPR; n = 6), or carrying 1 (PR1; n = 7) or 3 (PR3; n = 11) fetuses, were studied in individual pens. NPR ewes had lower (
    Language English
    Publishing date 2019-05-03
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani9050214
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Genotyping of prion protein in black merino sheep from the Iberian Peninsula

    Martin Palomino, Pedro / Laura Gomez Calle / Joao Serejo Proença / Elena Ruiz Maestre / José Luis Fernández-Garcia

    Small ruminant research. 2019 Apr., v. 173

    2019  

    Abstract: The black merino variety is an emerging fine-wool merino breed variety of sheep. Their flocks have ... resistance haplotypes. This study was aimed to report for the first time in the black merino ... reported in the black merino as follows: ALHRR, ALHRQ, ALRRQ, ALHHQ, AFHRQ, ALHRH, VLHRQ and T112ALHRQ ...

    Abstract The black merino variety is an emerging fine-wool merino breed variety of sheep. Their flocks have been reared in Portugal and Spain under different criteria regarding the selection for scrapie resistance haplotypes. This study was aimed to report for the first time in the black merino the prion protein (PRNP) haplotype frequency distribution using sequencing. A sample of 120 sheep belonging to four flocks was analyzed in this study. Three unselected flocks from Portugal and one selected for ARR/ARR genotypes from Spain. The number of polymorphism sites was extended here from three positions (136, 154 and 171) to five by adding the positions 141 and 143 due to both to show its current intermediate frequency in Portuguese sheep and to study the genetic relationship among haplotypes using networks analysis. In this way susceptibility to classical and atypical scrapie can be elucidated. Eight haplotypes could be reported in the black merino as follows: ALHRR, ALHRQ, ALRRQ, ALHHQ, AFHRQ, ALHRH, VLHRQ and T112ALHRQ but the last was a singleton haplotype. The results showed high genetic differentiation among flocks due to an unbalanced frequency distribution of haplotypes suggesting scarce genetic flow among them in Portugal. After collapse haplotypes to three positions (136, 154 and 171) the black merino from Portugal showed similar haplotype frequencies than in previous study except for the VRQ haplotypes with higher frequency in this study. The finding of AFHRQ was interesting because it was associated to atypical scrapie being the only cases declared in Portugal of this disease. In conclusion, we reported high richness in haplotypes in this sheep, but its distribution critically depends on the studied flock. This genetic richness enables to analyze different scenarios before implemented breeding programmes. In this way the application of a breeding programme to control scrapie appears to be a less challenging task.
    Keywords Merino ; breeding programs ; flocks ; frequency distribution ; genetic relationships ; genetic variation ; genotyping ; haplotypes ; prions ; rearing ; scrapie ; sheep ; Iberian Peninsula ; Portugal ; Spain
    Language English
    Dates of publication 2019-04
    Size p. 36-41.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 286928-7
    ISSN 0921-4488
    ISSN 0921-4488
    DOI 10.1016/j.smallrumres.2019.02.010
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Pregnancy and Litter Size, But Not Lamb Sex, Affect Feed Intake and Wool Production by Merino-Type Ewes

    Manuel Ochoa Cordero / César A. Meza Herrera / Juan M. Vázquez García / Caroline A. Stewart / César A. Rosales Nieto / Ana E. Ochoa Alfaro / Ian W. Purvis / Venancio Cuevas Reyes / Héctor A. Lee Rangel / Graeme B. Martin

    Animals, Vol 9, Iss 5, p

    2019  Volume 214

    Abstract: ... affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes ...

    Abstract Two experiments (Australia and Mexico) tested whether feed intake (FI) and wool production (WP) are affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes were either not pregnant (NPR; n = 6), or carrying 1 (PR1; n = 7) or 3 (PR3; n = 11) fetuses, were studied in individual pens. NPR ewes had lower ( p < 0.02) FI throughout PRG and lactation (LAC), except around lambing ( p < 0.001). Following lambing, FI increased in PRG ewes ( p < 0.001) to double the values in NPR ewes. PRG reduced WP ( p < 0.001); in PR3, WP was lower than for both PR1 and NPR ( p < 0.001). WP decreased during LAC and was lower in ewes rearing lambs than in NPR ewes ( p < 0.001). Experiment-2 used 48 pregnant ewes (28 bearing singles and 20 bearing twins). Dam and lamb live weights (LW) and body condition (BC) were recorded from birth to weaning at 60 d, and dam fleece weight (DFW) was measured at weaning (12 months growth). WP was higher in ewes bearing and rearing single lambs than in ewes bearing twins ( p < 0.001). DFW was positively ( p < 0.01) related to LZ, dam LW, and BC, but not to changes in dam LW during LAC, or to lamb weight at birth or weaning, or LW gain, or LS. In conclusion, FI was affected during PRG and by LZ during LAC, whereas WP was influenced by LZ, but not LS, only during pregnancy.
    Keywords litter size ; lamb sex ; wool growth ; Merino type sheep ; Veterinary medicine ; SF600-1100 ; Zoology ; QL1-991
    Language English
    Publishing date 2019-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: Pregnancy and Litter Size, But Not Lamb Sex, Affect Feed Intake and Wool Production by Merino-Type Ewes

    Ochoa Cordero, Manuel / Meza Herrera, César A / Vázquez García, Juan M / Stewart, Caroline A / Rosales Nieto, César A / Ochoa Alfaro, Ana E / Purvis, Ian W / Cuevas Reyes, Venancio / Lee Rangel, Héctor A / Martin, Graeme B

    Animals. 2019 May 03, v. 9, no. 5

    2019  

    Abstract: ... affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes ...

    Abstract Two experiments (Australia and Mexico) tested whether feed intake (FI) and wool production (WP) are affected by pregnancy (PRG), litter size (LZ), or lamb sex (LS) in Merino-type ewes. In Experiment-1, ewes were either not pregnant (NPR; n = 6), or carrying 1 (PR1; n = 7) or 3 (PR3; n = 11) fetuses, were studied in individual pens. NPR ewes had lower (p < 0.02) FI throughout PRG and lactation (LAC), except around lambing (p < 0.001). Following lambing, FI increased in PRG ewes (p < 0.001) to double the values in NPR ewes. PRG reduced WP (p < 0.001); in PR3, WP was lower than for both PR1 and NPR (p < 0.001). WP decreased during LAC and was lower in ewes rearing lambs than in NPR ewes (p < 0.001). Experiment-2 used 48 pregnant ewes (28 bearing singles and 20 bearing twins). Dam and lamb live weights (LW) and body condition (BC) were recorded from birth to weaning at 60 d, and dam fleece weight (DFW) was measured at weaning (12 months growth). WP was higher in ewes bearing and rearing single lambs than in ewes bearing twins (p < 0.001). DFW was positively (p < 0.01) related to LZ, dam LW, and BC, but not to changes in dam LW during LAC, or to lamb weight at birth or weaning, or LW gain, or LS. In conclusion, FI was affected during PRG and by LZ during LAC, whereas WP was influenced by LZ, but not LS, only during pregnancy.
    Keywords body condition ; body weight ; ewes ; feed intake ; fetus ; fleece ; lactation ; lambing ; lambs ; litter size ; pregnancy ; rearing ; twins ; weaning ; wool production ; Australia ; Mexico
    Language English
    Dates of publication 2019-0503
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ISSN 2076-2615
    DOI 10.3390/ani9050214
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Effects of bilateral discectomy and bilateral discopexy on black Merino sheep rumination kinematics: TEMPOJIMS - phase 1 - pilot blinded, randomized preclinical study.

    Ângelo, David Faustino / Gil, Florencio Monje / González-García, Raúl / Mónico, Lisete / Sousa, Rita / Neto, Lia / Caldeira, Inês / Moura, Carla / Francisco, Luís Carlos / Sanz, David / Alves, Nuno / Salvado, Francisco / Morouço, Pedro

    Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery

    2017  Volume 46, Issue 2, Page(s) 346–355

    Abstract: ... Black Merino sheep to evaluate changes in mastication and rumination after bilateral discectomy and ...

    Abstract Background: The temporomandibular joint interposal study (TEMPOJIMS) is a rigorous preclinical trial divided in 2 phases. In phase 1 the authors investigated the role of the TMJ disc and in phase 2 the authors evaluated 3 different interposal materials. The present work of TEMPOJIMS - phase 1, investigated the effects of bilateral discectomy and discopexy in sheep mastication and rumination.
    Methods: This randomized, blinded and controlled preclinical trial (in line with the ARRIVE guidelines) was conducted in 9 Black Merino sheep to evaluate changes in mastication and rumination after bilateral discectomy and bilateral discopexy, by comparing with a sham surgery control group. The outcomes evaluated were: (1) absolute masticatory time; (2) ruminant time per cycle; (3) ruminant kinematics, and (4) ruminant area. After baseline evaluation and surgical interventions, the outcomes were recorded over 3 successive days, every 30 days, for 6 months.
    Results: The first month after intervention seemed to be the critical period for significant kinematic changes in the discectomy and discopexy groups. However, 6 months after the bilateral interventions, no significant changes were noticed when compared with the control group.
    Conclusions: In this study, bilateral discectomy and discopexy had no significant effect in mastication and ruminatory movement. The introduction of kinematic evaluation presents a new challenge that may contribute to the improvement of future studies on the TMJ domain.
    MeSH term(s) Animals ; Biomechanical Phenomena ; Female ; Mastication/physiology ; Rumination, Digestive/physiology ; Sheep ; Temporomandibular Joint Disc/physiopathology ; Temporomandibular Joint Disc/surgery
    Language English
    Publishing date 2017-12-02
    Publishing country Scotland
    Document type Journal Article
    ZDB-ID 91267-0
    ISSN 1878-4119 ; 1010-5182 ; 0301-0503
    ISSN (online) 1878-4119
    ISSN 1010-5182 ; 0301-0503
    DOI 10.1016/j.jcms.2017.11.022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Bioengineered Temporomandibular Joint Disk Implants: Study Protocol for a Two-Phase Exploratory Randomized Preclinical Pilot Trial in 18 Black Merino Sheep (TEMPOJIMS).

    Ângelo, David Faustino / Monje, Florencio Gil / González-García, Raúl / Little, Christopher B / Mónico, Lisete / Pinho, Mário / Santos, Fábio Abade / Carrapiço, Belmira / Gonçalves, Sandra Cavaco / Morouço, Pedro / Alves, Nuno / Moura, Carla / Wang, Yadong / Jeffries, Eric / Gao, Jin / Sousa, Rita / Neto, Lia Lucas / Caldeira, Daniel / Salvado, Francisco

    JMIR research protocols

    2017  Volume 6, Issue 3, Page(s) e37

    Abstract: ... obtaining rigorous data related to (1) identify the impact of bilateral discectomy in black Merino sheep, (2 ... identify the impact of bilateral discopexy in black Merino sheep, and (3) identify the impact of three ... different bioengineering TMJ discs in black Merino sheep.: Methods: A two-phase exploratory randomized ...

    Abstract Background: Preclinical trials are essential to test efficacious options to substitute the temporomandibular joint (TMJ) disk. The contemporary absence of an ideal treatment for patients with severe TMJ disorders can be related to difficulties concerning the appropriate study design to conduct preclinical trials in the TMJ field. These difficulties can be associated with the use of heterogeneous animal models, the use of the contralateral TMJ as control, the absence of rigorous randomized controlled preclinical trials with blinded outcomes assessors, and difficulties involving multidisciplinary teams.
    Objective: This study aims to develop a new, reproducible, and effective study design for preclinical research in the TMJ domain, obtaining rigorous data related to (1) identify the impact of bilateral discectomy in black Merino sheep, (2) identify the impact of bilateral discopexy in black Merino sheep, and (3) identify the impact of three different bioengineering TMJ discs in black Merino sheep.
    Methods: A two-phase exploratory randomized controlled preclinical trial with blinded outcomes is proposed. In the first phase, nine sheep are randomized into three different surgical bilateral procedures: bilateral discectomy, bilateral discopexy, and sham surgery. In the second phase, nine sheep are randomized to bilaterally test three different TMJ bioengineering disk implants. The primary outcome is the histological gradation of TMJ. Secondary outcomes are imaging changes, absolute masticatory time, ruminant time per cycle, ruminant kinetics, ruminant area, and sheep weight.
    Results: Previous preclinical studies in this field have used the contralateral unoperated side as a control, different animal models ranging from mice to a canine model, with nonrandomized, nonblinded and uncontrolled study designs and limited outcomes measures. The main goal of this exploratory preclinical protocol is to set a new standard for future preclinical trials in oromaxillofacial surgery, particularly in the TMJ field, by proposing a rigorous design in black Merino sheep. The authors also intend to test the feasibility of pilot outcomes. The authors expect to increase the quality of further studies in this field and to progress in future treatment options for patients undergoing surgery for TMJ disk replacement.
    Conclusions: The study has commenced, but it is too early to provide results or conclusions.
    Language English
    Publishing date 2017-03-02
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 2719222-2
    ISSN 1929-0748
    ISSN 1929-0748
    DOI 10.2196/resprot.6779
    Database MEDical Literature Analysis and Retrieval System OnLINE

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