LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 2854

Search options

  1. Article ; Online: Nutritional strategies, performance, digestibility, and carcass traits of Santa Ines and Rabo Largo breeds in a tropical climate.

    Pereira, Anderson Lopes / de Oliveira Maia Parente, Michelle / de Sousa, Edegleicia Alves / Alves, Arnaud Azevedo / de Moura Zanine, Anderson / de Jesus Ferreira, Daniele / Perazzo, Alexandre Fernandes / da Silva de Sousa, Francisca Cláudia / Dos Anjos, Luana França / Lima, Hyanne Costa / Moreira Filho, Miguel Arcanjo / Cavalcanti, Hactus Souto / Parente, Henrique Nunes

    Tropical animal health and production

    2024  Volume 56, Issue 2, Page(s) 82

    Abstract: ... carcass traits, and the yield of commercial cuts of Santa Ines (SI) and Rabo Largo (RL) breeds fed diets ...

    Abstract The aim of this study was to compare the performance, intake, digestibility, ruminal parameters, carcass traits, and the yield of commercial cuts of Santa Ines (SI) and Rabo Largo (RL) breeds fed diets with high or low roughage-to-concentrate ratio (R:C) under a tropical climate. Twenty lambs from each breed were individually housed in covered pens and fed the experimental diets for 58 days. The diets were formulated to meet the growth requirements of lambs with a roughage-to-concentrate ratio of 70:30 and 30:70. Significant interactions of breed × diet for nutrient intake were observed (P < 0.05), with SI lambs fed low R:C diet showing higher intake of dry matter, organic matter, crude protein, and total carbohydrates compared to RL lambs fed the same diet. SI lambs fed high R:C diet had higher intake of neutral detergent fiber than RL lambs (P < 0.05). SI lambs displayed better average daily gain and feed efficiency, regardless of diet (P < 0.05). Carcass traits and gastrointestinal components were influenced by breed and diet (P < 0.05). SI lambs fed low R:C diet showed higher subcutaneous fat thickness and better carcass finishing compared to RL lambs (P < 0.05). SI breed lambs exhibited better growth performance, carcass traits, and gastrointestinal characteristics, even when fed diets with a high roughage-to-concentrate ratio.
    MeSH term(s) Sheep ; Animals ; Tropical Climate ; Digestion ; Animal Feed/analysis ; Sheep, Domestic ; Diet/veterinary ; Dietary Fiber/metabolism
    Chemical Substances Dietary Fiber
    Language English
    Publishing date 2024-02-17
    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/s11250-024-03921-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Estimates of heritability and candidate genes for primal cuts and dressing percentage in Santa Ines sheep

    de Souza, Tatiana Cortez / de Souza, Taiana Cortez / da Cruz, Valdecy Aparecida Rocha / Mourão, Gerson Barreto / Pedrosa, Victor Breno / Rovadoscki, Gregorí Alberto / Coutinho, Luiz Lehmann / de Camargo, Gregório Miguel Ferreira / Costa, Raphael Bermal / de Carvalho, Gleidson Giordano Pinto / Pinto, Luís Fernando Batista

    Livestock science. 2022 Oct., v. 264

    2022  

    Abstract: ... from molecular markers can improve the selection schemes for these traits. Thus, 490 Santa Ines lambs were genotyped ...

    Abstract Primal cuts and dressing percentage are complex traits to record on a large scale, and information from molecular markers can improve the selection schemes for these traits. Thus, 490 Santa Ines lambs were genotyped for 50 K SNP chip to perform a genomic study for dressing percentage as well as shoulder, loin, rib, and leg yields. Variance components were estimated through a univariate animal model with a genomic relationship matrix. Weighted single-step association analyses were carried out to estimate the variance percentage explained by adjacent SNPs in genome windows (GW) of 1.0 Mbp. The estimates of heritability were 0.32 ± 0.14 (carcass), 0.28 ± 0.11 (loin), 0.41 ± 0.13 (rib), 0.32 ± 0.13 (shoulder), and 0.46 ± 0.13 (leg). The number of GW explaining more than 1% of additive genetic variance (VA) and the total percentages of VA explained for dressing percentage, loin, rib, shoulder, and leg yields were, respectively, eight (12.5%), ten (19.2%), nine (20.1%), ten (18.8%), and seven (13.1%). Inside the GW, 355 protein-coding genes were found, 31 of them (FAIM, MRAS, PIK3CB, NHLH2, CASQ2, NAALADL2, ATPL1, GLIS3, TMOD1, CNTN1, LRRK2, HMGA2, MSRB3, ANKS1B, IR29A, LCORL, NCAPG, DTHD1, ARAP2, SYNE2, SPTB, KHDRBS3, CLVS1, NKAIN3, UBL3, SLC7A1, GSKIP, BDKRB2, SETD3, BCL11B and LRRK1) can be considered as candidate genes for carcass traits due their biological functions. Moreover, other sixteen genes take part in the neuroactive ligand-receptor interaction pathway, and this pathway was significant in functional annotation analysis of the genes mapped for primal cuts. These results revealed novel insights regarding the genetic control for primal cuts in sheep and are a novel source of information for future genomic studies related to carcass yield in livestock.
    Keywords animal models ; carcass yield ; genetic variance ; genomics ; genotyping ; heritability ; information sources ; variance
    Language English
    Dates of publication 2022-10
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 2226176-X
    ISSN 1878-0490 ; 1871-1413
    ISSN (online) 1878-0490
    ISSN 1871-1413
    DOI 10.1016/j.livsci.2022.105048
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  3. Article: Chemical and biological treatment of cotton gin trash for fattening Santa Ines lambs

    Andradez, A. R. / de Figueiredo, M. R / de Quadrosz, D. G. / Ferreira, J. Q. / Whitney, T. R. / Luz, Y. S. / Santos, H. R. O. / Souza, M. N. S.

    Livestock science

    2020  Volume 240, Issue -, Page(s) 104146

    Language English
    Document type Article
    ZDB-ID 2226176-X
    ISSN 1871-1413
    Database Current Contents Nutrition, Environment, Agriculture

    More links

    Kategorien

  4. Article ; Online: Effect of reproductive methods and GnRH administration on long-term protocol in Santa Ines ewes.

    Biehl, Marcos V / Ferraz Junior, Marcos V C / Ferreira, Evandro M / Polizel, Daniel M / Miszura, Alexandre A / Barroso, José P R / Oliveira, Gabriela B / Bertoloni, Analisa V / Pires, Alexandre V

    Tropical animal health and production

    2017  Volume 49, Issue 6, Page(s) 1303–1308

    Abstract: This study aimed to determine whether reproductive performance of ewes submitted to laparoscopic timed artificial insemination (TAI) would be similar to ante meridiem (AM)/post meridiem (PM) rule and assisted natural mating (NM), and whether GnRH may ... ...

    Abstract This study aimed to determine whether reproductive performance of ewes submitted to laparoscopic timed artificial insemination (TAI) would be similar to ante meridiem (AM)/post meridiem (PM) rule and assisted natural mating (NM), and whether GnRH may enhance the pregnancy rate in TAI. In experiment I, 191 non-lactating ewes were synchronized, then TAI was performed either 48 h after progesterone (P4) removal (TAI-48 h) or 12 h after estrus detection (AM/PM); moreover, some ewes were submitted to NM (NM) as control treatment. In experiment II, 247 non-lactating ewes were allocated in five treatments, a control (no-GnRH on protocol) and four treatments arranged in a factorial design 2 × 2. The factors were time and dose of GnRH: ewes that received either 10 μg (TAI-10 μg-36 h) or 25 μg of GnRH (TAI-25 μg-36 h) 36 h after P4 removal and ewes that received either 10 μg (TAI-10 μg-48 h) or 25 μg of GnRH (TAI-25 μg-48 h) at time of insemination, 48 h after P4 removal. In experiment I, pregnancy rate in TAI-48 h was lower (P = 0.03) than AM/PM and NM. Moreover, the probability of pregnancy in TAI-48 h was higher (P = 0.06) in ewes detected in estrus early. In experiment II, the use of GnRH in TAI protocols increased (P < 0.01) pregnancy rate at synchronization, and TAI-25 μ-48 h and TAI-10 μg-36 h treatments increased (P = 0.02) pregnancy rate compered to TAI-10 μg-48 h. We conclude that TAI decreased pregnancy rate compered to NM and AM/PM, which may be improved by GnRH use in TAI to synchronize ovulation.
    Language English
    Publishing date 2017-08
    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/s11250-017-1329-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Effect of reproductive methods and GnRH administration on long-term protocol in Santa Ines ewes

    Biehl, Marcos V / Marcos V C Ferraz Junior / Evandro M Ferreira / Daniel M Polizel / Alexandre A Miszura / José P R Barroso / Gabriela B Oliveira / Analisa V Bertoloni / Alexandre V Pires

    Tropical animal health and production. 2017 Aug., v. 49, no. 6

    2017  

    Abstract: This study aimed to determine whether reproductive performance of ewes submitted to laparoscopic timed artificial insemination (TAI) would be similar to ante meridiem (AM)/post meridiem (PM) rule and assisted natural mating (NM), and whether GnRH may ... ...

    Abstract This study aimed to determine whether reproductive performance of ewes submitted to laparoscopic timed artificial insemination (TAI) would be similar to ante meridiem (AM)/post meridiem (PM) rule and assisted natural mating (NM), and whether GnRH may enhance the pregnancy rate in TAI. In experiment I, 191 non-lactating ewes were synchronized, then TAI was performed either 48 h after progesterone (P4) removal (TAI-48 h) or 12 h after estrus detection (AM/PM); moreover, some ewes were submitted to NM (NM) as control treatment. In experiment II, 247 non-lactating ewes were allocated in five treatments, a control (no-GnRH on protocol) and four treatments arranged in a factorial design 2 × 2. The factors were time and dose of GnRH: ewes that received either 10 μg (TAI-10 μg-36 h) or 25 μg of GnRH (TAI-25 μg-36 h) 36 h after P4 removal and ewes that received either 10 μg (TAI-10 μg-48 h) or 25 μg of GnRH (TAI-25 μg-48 h) at time of insemination, 48 h after P4 removal. In experiment I, pregnancy rate in TAI-48 h was lower (P = 0.03) than AM/PM and NM. Moreover, the probability of pregnancy in TAI-48 h was higher (P = 0.06) in ewes detected in estrus early. In experiment II, the use of GnRH in TAI protocols increased (P < 0.01) pregnancy rate at synchronization, and TAI-25 μ-48 h and TAI-10 μg-36 h treatments increased (P = 0.02) pregnancy rate compered to TAI-10 μg-48 h. We conclude that TAI decreased pregnancy rate compered to NM and AM/PM, which may be improved by GnRH use in TAI to synchronize ovulation.
    Keywords artificial insemination ; estrus ; estrus detection ; ewes ; gonadotropin-releasing hormone ; insemination ; natural mating ; ovulation ; pregnancy rate ; probability ; progesterone ; reproductive performance
    Language English
    Dates of publication 2017-08
    Size p. 1303-1308.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 603363-5
    ISSN 1573-7438 ; 0049-4747
    ISSN (online) 1573-7438
    ISSN 0049-4747
    DOI 10.1007/s11250-017-1329-1
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  6. Article: Follicular size, luteinizing hormone(LH), and progesterone(P4) levels in postpartum Santa Ines ewes subjected to ram effect combined with suckling interruption

    Ferreira-Silva, J. C. / Filho, F. T. / Moura, M. T. / Nascimento, R. S. / Oliveira, L. R. S. / Bartolomeu, C. C. / Oliveira, M. A. L.

    Livestock science

    2018  Volume 214, Issue -, Page(s) 88

    Language English
    Document type Article
    ZDB-ID 2226176-X
    ISSN 1871-1413
    Database Current Contents Nutrition, Environment, Agriculture

    More links

    Kategorien

  7. Article ; Online: Characterization of body biometrics during growth of elite Santa Ines sheep

    Milton Rezende Teixeira Neto / Jurandir Ferreira da Cruz / Carlos Henrique Mendes Malhado / Paulo Luiz Souza Carneiro / Rita de Cássia Santos Nunes / Luiz Miranda Souza / Luiz Eduardo Barreto de Souza

    Revista Brasileira de Zootecnia, Vol 41, Iss 1, Pp 58-

    2012  Volume 64

    Abstract: The objective of this study was to characterize body biometrics of Santa Ines sheep during growth ... for both measures. Santa Ines sheep have different growth rates for body measurements; whereas growth in posterior ...

    Abstract The objective of this study was to characterize body biometrics of Santa Ines sheep during growth. Data from 4,038 animals, males and females, with ages from four to 36 months, from different herds participating in the National Agricultural Fair in Bahia from 2003 to 2008 were used. The characteristics evaluated were: body weight, average daily gain, body length, thoracic circumference, anterior height and posterior height. The mean values found were compared by the Student-Newman-Keuls test. All characteristics studied showed gradual change with aging, and it is worth-noting that age had positive effect on body weight, body length, thoracic circumference, anterior height and posterior height and negative effect on average daily gain. Average daily gain was reduced by 68.5% from four to 36 months of age, while the mean improvements observed in both sexes in this age range, for body weight, body length, thoracic circumference, anterior height and posterior height were 137.8%, 23.5%, 43.2%, 19.3% and 19.6%, respectively. However, the increments for body weight, body length and thoracic circumference were higher until 12 months of age, when an increase of 72.7%, 14.6% and 24.8% in their respective characteristics was verified. For anterior height and posterior height, the greatest increase occurred up to eight months of age with improvement of 8.4% for both measures. Santa Ines sheep have different growth rates for body measurements; whereas growth in posterior height stabilizes earlier, the thoracic circumference, along with body weight, remains growing for longer time.
    Keywords average daily gain ; body development ; body measurements ; body weight ; Animal culture ; SF1-1100 ; Agriculture ; S ; DOAJ:Animal Sciences ; DOAJ:Agriculture and Food Sciences
    Subject code 630 ; 796
    Language Portuguese
    Publishing date 2012-01-01T00:00:00Z
    Publisher Sociedade Brasileira de Zootecnia
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  8. Article ; Online: Use of reduced doses of eCG applied by different routes in the TAI program in Santa Ines sheep

    Karla Dias Antunes-Melo / Veronaldo Souza de Oliveira / Anselmo Domingos Ferreira Santos / Claudio Alvarenga de Oliveira / Lícia Mendes Mendonça / Julianne Santiago Silva Goveia / Thiago Santos Almeida

    Semina: Ciências Agrárias, Vol 36, Iss 3, Pp 1347-

    2015  Volume 1354

    Abstract: ... in Santa Ines ewes. The average levels of cortisol were significant, at 1.15, 2.86 and 0.52 ?g/dL according ... results and a low cost in multiparous ewes of the Santa Ines breed. ...

    Abstract The aims of this study were to improve the cost-benefit ratio of the application of artificial insemination in fixed time (TAI) by the transcervical route in sheep, to test the dosage reduction and the use of the vulvar submucosa (VSM) route as an alternative for the application of equine chorionic gonadotropin (eCG) on the efficiency of the synchronization protocol and fertility to artificial insemination (AI) and to measure the level of cortisol in ewes as a result the application of this biotechnique. Blood samples were collected before AI, immediately after AI and seven days after AI. Six groups of twenty animals were used, and each group received doses of 200, 300 and 400 IU of eCG by the intramuscular route (IM) and VSM. Estrus was detected, and 48 hours later, the inseminations were performed by the transcervical route. Among the 120 treated ewes, 87.5% came in estrus. The percentage of the intrauterine deposition of semen was 88.3%. The pregnancy rate ranged from 20 to 70% between treatments, with an average of 46.66%. The VSM route was viable for the application of eCG in doses of 300 and 400 IU. The reduction in the eCG dose to 200 IU by the IM route reduces costs while maintaining the efficiency of estrus synchronization protocols and TAI with frozen semen in Santa Ines ewes. The average levels of cortisol were significant, at 1.15, 2.86 and 0.52 ?g/dL according to the three collections, being higher after the animal was off the easel at the end of AI. The procedures for performing the transcervical AI technique indicate that stress in the animals produces satisfactory fertility results and a low cost in multiparous ewes of the Santa Ines breed.
    Keywords Application route ; Artificial insemination ; Hormones ; Sheep ; Stress ; Agriculture (General) ; S1-972
    Subject code 630
    Language English
    Publishing date 2015-06-01T00:00:00Z
    Publisher Universidade Estadual de Londrina
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  9. Article ; Online: Heat tolerance index, food intake and weight gain of Santa Ines sheep in the agreste region of Pernambuco State, Brazil - doi

    Marcelo de Andrade Ferreira / Ângela Maria Quintão Lana / Lígia Alexandrina Barros da Costa / Marcílio de Azevedo / Florisval Protásio Silva Filho / Ângela Maria Vieira Batista

    Acta Scientiarum: Animal Sciences, Vol 35, Iss 3, Pp 307-

    10.4025/actascianimsci.v35i3.18466

    2013  Volume 310

    Abstract: ... Inês lambs, non-pregnant, non-lactating, seven animals of each coat color: black, brown and white ...

    Abstract This study evaluated the influence of coat color on the heat tolerance and performance of 21 Santa Inês lambs, non-pregnant, non-lactating, seven animals of each coat color: black, brown and white, with an average initial weight of 25.71, 24.85 and 25.00 kg, for white, brown and black animals, respectively, and 12 months of age. The study was conducted during summer in the agreste region of Pernambuco State, Brazil. Twenty-one sheeps were assigned to a completely randomized design with three treatments and seven replicates. The heat tolerance index and the animal performance were evaluated once a week for eight weeks. White sheep were slightly superior in heat tolerance to brown and black sheep, 88.3, 85.5 and 86.6 respectively, but this was not reflected in the growth performance of the animals, which showed average daily weight gain of 170.10, 193.69 and 199.50 g for animals white, brown and black, respectively.
    Keywords adaptation ; bioclimatology ; climate ; heat stress ; Animal culture ; SF1-1100 ; Agriculture ; S ; DOAJ:Animal Sciences ; DOAJ:Agriculture and Food Sciences
    Subject code 630
    Language Portuguese
    Publishing date 2013-07-01T00:00:00Z
    Publisher Eduem - Editora da Universidade Estadual de Maringá
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article ; Online: Efficiency of metabolizable energy utilization for maintenance and gain and evaluation of Small Ruminant Nutrition System model in Santa Ines sheep

    José Gilson Louzada Regadas Filho / Elzânia Sales Pereira / Arturo Bernardo Selaive Villarroel / Patrícia Guimarães Pimentel / Rildson Melo Fontenele / Marcus Roberto Góes Ferreira Costa / Iana Sérvulo Gomes Maia / Weberte Alan Sombra

    Revista Brasileira de Zootecnia, Vol 40, Iss 11, Pp 2558-

    2011  Volume 2564

    Abstract: ... in predicting dry matter intake and average daily gain of growing Santa Ines sheep. Twenty-four non-castrated ... Santa Ines sheep, at 50 days of age and with average body weight of 13.00 ± 0.56 kg, respectively, were ...

    Abstract This study was carried out to estimate efficiencies of the utilization of metabolizable energy for maintenance (k m) and weight gain (k g) and to evaluate the Small Ruminant Nutrition System (SRNS) model in predicting dry matter intake and average daily gain of growing Santa Ines sheep. Twenty-four non-castrated Santa Ines sheep, at 50 days of age and with average body weight of 13.00 ± 0.56 kg, respectively, were used. After a 10-day adaptation period, four animals were slaughtered to be used as reference for estimating initial empty body weight and body composition of the other animals. The remaining animals were distributed in a random block design, with the treatments consisting of diets containing different levels of metabolizable energy (2.08, 2.28, 2.47 and 2.69 Mcal/kg of DM), with five replicates. The metabolizable energy use efficiencies for maintenance and for weight gain were calculated from the relationship between the dietary net energy for maintenance and gain and ME concentration in the diets. Evaluation of the SRNS model was performed by adjustment of simple linear regression model between the predicted (independent variable) and observed (dependent variable) values. The estimated energy use efficiency for maintenance (k m) was 0.70; and for gain weight (kg) it showed to be inversely proportional to the increase of metabolizable energy concentration in the diet. The dry matter intake predicted by the SRNS model did not statistically differ from that observed, but the model overestimated the average daily gain by 5.18%. Those results can contribute to the construction of a database, which could be condensed into several others in a predictive model of performance and feed planning for sheep reared in Brazil.
    Keywords mechanistic model ; nutritional requirements ; semiarid ; Animal culture ; SF1-1100 ; Agriculture ; S ; DOAJ:Animal Sciences ; DOAJ:Agriculture and Food Sciences
    Subject code 630
    Language Portuguese
    Publishing date 2011-11-01T00:00:00Z
    Publisher Sociedade Brasileira de Zootecnia
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top