oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 2 )

2018 ( 10 )

2017 ( 7 )

2016 ( 12 )

Custom range...

Search Results: 1 - 10 of 6593 matches for " Selaive-Villarroel Arturo Bernardo "
All listed articles are free for downloading (OA Articles)
Page 1 /6593
Display every page Item
Crescimento e caracteristicas de carca?a de cordeiros mesti?os Santa Inês e Somalis x srd em regime semi-intensivo de cria??o
Selaive-Villarroel, Arturo Bernardo;Souza Júnior, Francisco Augusto de;
Ciência e Agrotecnologia , 2005, DOI: 10.1590/S1413-70542005000500005
Abstract: a research was conducted at the experimental field station vale do curu, in pentecoste, state of ceará, to evaluate the growth rate and some carcass yield on crossbred lambs born from "crioula" (srd-without well-defined type) tropical hair ewes mated with santa inês and brazilian somali rams. forty six crossebred lambs of both sexes were raised in a semi-intensive conditions and lamb growth rate was evaluated by taking into account the body weight from weaning with three months of age to six month. male lambs of each group were slaughtered at the final weight and their carcasses evaluated for yield and conformation score. a completely randomized design was used to analyze the data. results shown that both groups of animals had a similar weight at weaning but there was a significant difference (p<0.05) on growth rate at six month of age. the santa inês cross lamb had heavier bodyweight (21,2 kg, with a daily gain weight of 112 g) than somalis cross lambs (18,2 and 72 g of daily weight gain). no effect of genotype was detected in the hot and cold carcass yield, although the santa inês lamb crossbred were heavier (p<0.05) than brazilian somali crossbred lamb. it was concluded that the santa inês breed rams is a better alternative to improve the meat sheep production in the northeast brazil than the somalis breed rams.
Avalia??o dos fatores ambientais no desenvolvimento corporal de cordeiros deslanados da ra?a Morada Nova
Fernandes, Ant?nio Amaury Oriá;Buchanan, David;Selaive-Villarroel, Arturo Bernardo;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000600012
Abstract: records from an unselected flock of morada nova sheep collected over an 11-year period (1981 to 1991) were used to evaluate environmental sources of variation affecting growth traits. the effects of year of birth to yearling (a), sex of lamb (s), type of birth (t), and weigth of ewe at lambing (p) were important sources of variation to explain differences in weigth at birth (pn), weaning (pd), six- months (pm6) and 12 months (pm12) of age. males were heavier than female lambs at all ages. single lambs born and raised as singles (ss) weighed more at all ages than twins raised as singles (gs) or twins raised as twins (gg). age of ewe at lambing (i) had a significant effect on pn, pd, and pm6. results suggest that nutritional management should be improved to reduce the environmental effects such as year of birth, type of birth and weight of ewe lambing. adjustment factors for sex of lamb, type of birth/rearing and age of ewe at lambing need to be estimated and considered in selection programs to improve growth performance of morada nova lambs.
Avalia o dos fatores ambientais no desenvolvimento corporal de cordeiros deslanados da ra a Morada Nova
Fernandes Ant?nio Amaury Oriá,Buchanan David,Selaive-Villarroel Arturo Bernardo
Revista Brasileira de Zootecnia , 2001,
Abstract: Foram analisados registros de um rebanho de ovinos da ra a Morada Nova, coletados num período de 11 anos (1981 a 1991), com o objetivo de avaliar os efeitos de ambiente sobre as características de crescimento dos cordeiros. Os efeitos de ano de nascimento (A), sexo do cordeiro (S), tipo de nascimento (T) e peso da ovelha ao parto (P) foram importantes fontes de varia o para explicar as diferen as nos pesos corporais ao nascimento (PN), ao desmame (PD), aos seis meses (PM6) e aos 12 meses de idade (PM12). Os cordeiros machos foram mais pesados que as fêmeas em todas as idades estudadas. Cordeiros nascidos e criados como simples (SS) pesaram mais que os nascidos duplos e criados como simples (GS) e os nascidos e criados como duplos (GG). A idade da ovelha (I) teve efeito significativo sobre PN, PD e PM6. Concluiu-se que práticas de manejo alimentar devem ser utilizadas para reduzir os efeitos dos fatores ambientais, como ano de nascimento, tipo de nascimento e peso da matriz ao parto, no desenvolvimento corporal dos cordeiros. Fatores de ajuste para sexo do cordeiro, tipo de nascimento e idade da ovelha devem ser estimados e considerados em programas de sele o, a fim de avaliar melhor o crescimento dos cordeiros da ra a Morada Nova.
Características da carca?a de caprinos mesti?os Anglo-Nubiano, Boer e sem padr?o racial definido
Oliveira, Ant?nio Nunes de;Selaive-Villarroel, Arturo Bernardo;Monte, Ant?nia Lucivania Sousa;Costa, Roberto Germano;Costa, Ludmilla Beliche Alves;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000400026
Abstract: the aim of this work was to study the carcass characteristics of three genetic groups: ? anglo-nubian (n=21), ? boer (n=22) and undefined breed (n=21). the animals were slaughtered at three different weights: 20, 25 and 30kg of live weight. it was evaluated the yield and the conformation carcass characteristics as well as the losses by cooling. the results showed no interaction genetic group and slaughter weight in all studied variables. the genotype had significant effect (p<0.05) on the yield and conformation carcass, with lower values observed for srd goats, but without significant difference between anglo-nubian and boer crossbreed goats. the slaughter weight influenced (p<0.05) on the yield and conformation carcass, with the lowest values observed in the goats slaughtered with 20kg of live weight. no significant differences were observed between the groups slaughtered with 25 and 30kg of live weight. the yield and conformation carcass increased to the measure that the slaughter weight from the goats up to 25kg increased. the losses by cooling presented no significant variation (p>0.05) between genetic groups and weight at slaughter. in conclusion, ? boer and ? anglo-nubian crossbreed kids had presented similar characteristics of yield and conformation carcass, both superior to the srd, being therefore more indicated for meat production.
Parametros físicos e sensoriais de qualidade da carne de cabritos mesti?os de diferentes grupos genéticos
Monte, Antonia Lucivania de Sousa;Selaive-Villarroel, Arturo Bernardo;Garruti, Deborah dos Santos;Zapata, Jorge Fernando Fuentes;Borges, ?ngela Silva;
Ciência e Tecnologia de Alimentos , 2007, DOI: 10.1590/S0101-20612007000200004
Abstract: this work evaluated the quality of the meat from srd (undesined breed) kid goats crossbred with two different genetic groups, anglo nubiana (a) and boer (b). seven animals srd (control) were used, 07 1/2 a x 1/2 srd, 07 3/4 a x 1/4 srd, 07 1/2 b x 1/2 srd, 07 3/4 b x 1/4 srd. the studied patterns were ph (pho - 30 minutes and phf-24 hours), color (l*, a*,b*), capacity of retaining water (cra), weight loss during cooking, resistance to shearing (fc), succulence, hardness and flavor. the ph 30 minutes was 6.92 for srd, differing significantly from b (6.8 for 1/2 b and 6.84 for 3/4 b). the ph 24 hours was 5.64 for srd, 5.42 for 1/2 a, 5,77 for 3/4 a, 5.59 for 1/2 b and 5.55 for 3/4 b. samples 1/2 b and 3/4 b showed different values for l* but showed no difference for a* and b*. the meat of crossbred animals retained more water than the control, showing lesser ppc and shearing force, which was perceived by the judges as higher juiciness and lower hardness. these samples also presented lower goat flavor. in general these effects were more evident for meat from animals with higher cross-breeding level. the boer crossbred group showed meat with better quality than the anglo nubiana group.
Rendimento das vísceras de cabritos mesti?os anglo x SRD e Boer x SRD
Monte, Antonia Lucivania de Sousa;Selaive-Villarroel, Arturo Bernardo;Oliveira, Antonio Nunes de;Perez, Juan Ramon Olalquiaga;Fuentes Zapata, Jorge Fernando;Ramos, Rafael Elias;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000100033
Abstract: with the objective to evaluate the yield of viscera and cavitary fat of crossbred goats from anglo nubian and boer sires and not well-defined type (srd), an experiment was carried out. fourteen animals, being seven ? boer x ? srd (bo) and seven ? anglo nubian x ? srd (an), were slaughtered at 12 months of age and 28 kg live weight, respectively. viscera from the mouth and thoracic cavity represented 3,63% of the total empty body weight (ebw), with values of 3,79% for bo and 3,48% for an, with no differences between groups. average abdominal viscera yield, including liver, kidney and the gastro-intestinal tract was 11,28% of the ebw, being 11,63% for the bo group and 10,96% for the an group, without any difference between these groups. total fat, mesenteric and omental yield for the animals studied was 2,97%. abdominal fat content in the bo group (3,47%), however, was higher (p<0,05) than the bo group (2,48%). it was concluded that crossbreed goats from boer and anglo-nubian buck with srd did not show differences in weight and yield of the main edible viscera. this fact indicates that there is no effect of sire breed on these traits. edible viscera represent about 15% of the empty body weight and should be considered as good prospect to aggregate value to the commercial price of goat.
Rendimento de cortes comerciais e composi??o tecidual da carca?a de cabritos mesti?os
Monte, Antonia Lucivania de Sousa;Selaive-Villarroel, Arturo Bernardo;Olalquiaga Pérez, Juan Ramón;Fuentes Zapata, Jorge Fernando;Beserra, Frederico José;Oliveira, Antonio Nunes de;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000900024
Abstract: carcass composition related to commercial cuts and tissue composition (muscle, bone and fat) from leg, loin and shoulder of kid goats crossbred anglo-nubian or boer were evaluated in 20 kids from two different genetic groups (13 ? anglo-nubian × ? undefined breed - ub and 7 ? boer × ? ub). the animals were slaughtered at 10 months of age and average body weight of 29 kg ± 0.08. after 24 hours of cooling (2oc), the carcasses were separated in the cuts: leg, loin (fore loin and rear loin), shoulder, breast, rib, neck and flank for the determination of yields related to cold carcass weight. after that, leg, loin (fore loin and rear loin )and shoulder were dissected in muscle, fat and bone tissues to estimate muscle:bone (mbr) and muscle:fat (mfr) ratios. the average yields for the cuts were: 30.8% of leg, 25.1% of loin (17.9% fore loin and 7.0% rear loin), 22.0% of shoulder, 4.8% of breast, 6.9% of neck, 4.8% of rib, and 5.6% of flank. no significant effect of genetic groups on cut yields was detected, except for the rib, that was higher for anglo-nubian × ub (5.12%) than for boer × ub (4.49%). %). in boer × ub kids, muscle tissue yield (61.05%), mbr (3.91) and mfr (6.85) were higher, while for anglo-nubian × ub yield were higher for fat (10.23%) and bone (16.79%) tissues. the carcass from crossbred boer × ub kids showed higher muscle tissue in the cuts of major commercial value than that from anglo-nubian × ub kids.
Produ??o de carne em ovinos de cinco genótipos. 5. Estimativas de qualidade e peso de carca?a através do peso vivo
Oliveira, Nelson Manzoni de;Osório, José Carlos da Silveira;Selaive-Villarroel, Arturo;Benitez-Ojeda, Daniel;Borba, Marcos Flávio da Silva;
Ciência Rural , 1998, DOI: 10.1590/S0103-84781998000400021
Abstract: the work was carried out at the centro de pesquisa de pecuária dos campos sulbrasileiros (cppsul) of embrapa, bagé, rs, brazil, with the participation of the faem/ufpel, departamento de zootecnia, pelotas, rs, brazil, during 1994/96. it was used a total of 117 male lambs of the texel (n =26), romney marsh (n =24), corriedale (n =26), polwarth (n =23) and merino (n=18) breeds, born and raised up to weaning (10 weeks) on native pasture (mainly composed by paspalum notatum flügge e axonopus affinis chase). after weaning, besides the native pasture, all lambs were fed with 200 g/lamb/day of a concentrate containing 17% of crude protein and 75% of dry matter basis, until slaughtering at 7,5 months of age. the between breed relationship of liveweight with carcass weight and some indicators of carcass quality were examined. the results showed that the regression coefficients of carcass weight on slaughtering weight were similar, however, there were differences on the height of the regression lines, derived from values of both texel and romney lambs. by increasing liveweight: a) there was no effect on carcass fat content; but carcass cover fat varied in the romney breed, b) carcass conformation was not affect in corriedale and romney marsh lambs and c) carcass compacity was affected in polwarth, corriedale, romney marsh and texel lambs.
Avalia??o da transferência passiva da imunidade através da proteína total sangüínea, em potros da ra?a árabe
Valente, M.;Unanian, M.M.;Selaive-Villarroel, A.B.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2003, DOI: 10.1590/S0102-09352003000200021
Abstract: to study the passive immunity transference to the new born foal via colostrum, the total serum protein of 27 foals, being 13 females and 14 males, born from multiparae and primiparae mares was estimated. the blood samples were colected at 6, 12, 18, 24 and 30 hours after the first suckling. the total protein values increase significantly between 6 and 12 hours after the first suckling, being not influenced by the sex of the foal. the total protein values of new borns from multiparae mares were significantly higher than primiparae mares at 12 hours after the first suckling and was mantained in the same levels for 30 hours. it was concluded that the newborn arabian foals had the highest immunoglobulin absortion between 6 and 12 hours after the first suckling and it is higher in foals born from multiparae than from primiparae mares.
Avalia o da transferência passiva da imunidade através da proteína total sangüínea, em potros da ra a árabe
Valente M.,Unanian M.M.,Selaive-Villarroel A.B.
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2003,
Abstract: To study the passive immunity transference to the new born foal via colostrum, the total serum protein of 27 foals, being 13 females and 14 males, born from multiparae and primiparae mares was estimated. The blood samples were colected at 6, 12, 18, 24 and 30 hours after the first suckling. The total protein values increase significantly between 6 and 12 hours after the first suckling, being not influenced by the sex of the foal. The total protein values of new borns from multiparae mares were significantly higher than primiparae mares at 12 hours after the first suckling and was mantained in the same levels for 30 hours. It was concluded that the newborn Arabian foals had the highest immunoglobulin absortion between 6 and 12 hours after the first suckling and it is higher in foals born from multiparae than from primiparae mares.
Page 1 /6593
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.