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Search Results: 1 - 10 of 6211 matches for " Arturo Bernardo;Garruti "
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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.
Indu o da atividade sexual em ovelhas corriedale mediante controle da luminosidade
Bruno Humberto Basile,Antonio Mies Filho,Arturo Bernardo Selaive Villaroel
Semina : Ciências Sociais e Humanas , 1985, DOI: 10.5433/
Abstract: The object of this study was to verify the effect of two types of illumination simulating day lengths of spring and winter on the sexual activity of ewes and to compare it with that of a normal summer season. 109 ewes (33 matured age 3.5 years and 76 maiden age 2 years) were used in randomized groups. In the first experiment, with an artificially increased spring daylength, the ewes did not show oestrus activity like those under natural daylength except for one animal (1.4%). The second group, with natural daylength of the sexual season (summer), the frequency and accumulated frequency of oestrus was only 28.5% and 28.5% (January), 100% and 100% (February) and 100% and 185.7% (March). Also observed for the second group were cycle interval of 19.8 ±3.6 days,ovulation rate of 1.07 and cervical mucous crystallization 68.1 % of the total crystallization. The third group (8h light and 16h darkness, winter) showed frequency and accumulated frequency of induced oestrus of 85.7% and 171.4% (July), 71.4% and 100% (August) and 42.8% and 42.8% (September). Also observed for the third group were a cycle interval of 18.1 ±2,4 days, ovulation rate of 1.0 and cervical mucous crystallization of 90.8% of the total. When comparing the data from artificial illumination of winter with normal summer illumination, no significant differences were observed for the oestrus interval nor the number of corpora lutea in the ewes. In conclusion, the abrupt seriation modified daylength in winter was favorable for sexual activity in young ewes. Utilizaram-se 109 ovinos, sendo 33 ovelhas adultas com 3,5 anos e 76 borregas com 2 anos de idade, submetidos aos seguintes tratamentos: Experimento A - Modifica o abrupta contínua da luminosidade na primavera. Tratamento 1 - Constituído de 20 ovelhas tratadas na Faculdade de Veterinária de UFRGS e de 08 ovelhas e 42 borregas, tratadas na EMBRAPA - UEPAE de Bagé, RS. Tratamento 2 — Constituído de 05 ovelhas e 21 borregas em Bagé, em regime de fotoperíodo natural na primavera como testemunha. Experimento B - Efeito do regime de fotoperíodo controlado na atividade sexual posterior, constituído por 07 boerregas, observadas na Faculadade de Veterinária da UFRGS, Rs. Experimento C - Modifica o abrupta seriada da luminosidade no inverno. Tratamento 3 — Constituído de 07 borregas, tratadas na Faculdade de Veterinária da UFRGS, RS. Tratamento 4 - Constituído de 06 borregas, em regime de fotoperíodo natural no inverno, como testemunha. Os animais do Tratamento 1 do Experimento A foram destinados ao modelo de redu o abrupta contínua da luminosidade na
Effects of weaning age and weight on lamb growth rate of Morada Nova breed raised in a tropical extensive production system
Selaive -Villarroel, Arturo Bernardo;Maciel, Marcus Brocardo;Oliveira, Nelson Manzoni de;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000300030
Abstract: the aim of this research were to study the effect of weaning age and weight on post-growing rate (pwg) and to estimate the optimal weaning age (wa) and weight (ww) of morada nova-white variety breed lambs raised under extensive system conditions. a total of 31 male and female lambs were evaluated, being 19 lambs born in april/may 2001 and 12 lambs born in february/march 2002. lambs were distributed in the following treatments at weaning: 1) weaning age = t1: weaned at 60 days; t2: weaned at 75 days; t3: weaned at 90 days, and 2) weaning weight = t1: weaned with 9 to 10.4kg weigth; t2: weaned with 10.5 to 12.4kg weight and t3: weaned with above 12.5kg weight. the pwg was recorded through successive weightings done every fourteen days from weaning to 180 days of age. data were analysed through a statistical model that included age and weight at weaning, sex and year of birth as fixed effects. lambs weaned with 60, 75 and 90 days of age showed non-significant differences (p>0.05) on pwg. however, ww had a significant influence (p<0.05) on lamb weight. the group weaned with 9-10.4kg had smaller live weight than those weaned with 10.5-12.4kg or above 12.5kg. no differences were found between these last two groups. also, sex had significant effect (p<0.05) on lamb growing with males being heavier than females (20.7kg and 17.6kg, respectively). year of birth did not affect pwg. it was concluded that weight at weaning is more important than age at weaning on post-weaning growing of lambs. the most efficient live weaning weight on white morada nova lambs raised in extensive system production is over 10.5kg.
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.
Características físico-mecanicas do couro de caprinos mesti?os Boer e Anglo Nubianos
Villarroel, Arturo Bernardo Selaive;Costa, Roberto Germano;Oliveira, S?nia Maria Pinheiro;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000900024
Abstract: the physical-mechanic industry characteristics of 22 crossed goat leathers from native does mated with anglo nubian (ag) and boer (bo) bucks were studied to evaluate the leather quality by analysis of tension and tear resistance. animals were slaughtered at average of 260 days of age and 22.0 kg of live body weigth. after skinning, the pelts were weighed, conserved in brine and salted and classified by quality before the chromium-tanned. to evaluate the tension and tear resistance assays, from the semi-finished leathers, six samples were taken in two directions from palette, hind and ventral regions. a split plot experimental design was used, where the two genetic groups were represented by the plots and a 2 x 3 factorial (two positions and three regions) by the split plots. means were compared by tukey test. no difference among groups in tension and tear resistance of leather assays were observed. however, there was a significant difference among samples from the palette, hind and ventral region in all characteristics studied, being thickness, strength and elongation valious higher in palette region. it was concluded that goat leather characteristics are similar for both genetic group and the quality is superior than the industry quality reference for a good product and the use of boer exotic breed on crossing with native does to improve the meat production do not affect the leather quality of the animals.
Características físico-mecanicas do couro de ovinos mesti?os Santa Inês e Texel
Villarroel, Arturo Bernardo Selaive;Costa, Roberto Germano;Oliveira, S?nia Maria Pinheiro;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000900025
Abstract: this work aimed to evaluate the physical-mechanic characteristics of crossed sheep leathers from hairy tropical crioula ewes mated with texel wooly breed (te) and santa inês (si) hair tropical breed rams. twenty two skin were evaluated from male sheep slaughtered at average of 240 days of age and 21.9 ± 4.4 and 20.9 ± 3.4 body live weight, respectively for te and si. after skinning, pelts were weighed, conserved in brine and salted and classified by quality before the chromium-tanned. from the leather obtained in this stage, called wet blue, samples were taken from palette, hind and ventral regions. from each region studied, three samples were taken in two directions for physical-mechanical analysis of tension and tear resistance. a split plot experimental design was used, where the two genetic groups were represented by the plots and a 2 x 3 factorial (two positions and three regions) by the split plots. results showed that the si leathers group had better resistance to tensile strength and distention assays than te group and, in both genetic group, there were not significant differences among the different regions studied on leather. it was concluded that leathers from the crossbreding of texel sheep wooly ram and crioula hairy ewes showed smaller industry quality than hair tropical santa inês breed.
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.
Intestinal digestibility of protein of adapted forages and by-products in Brazilian Northeast by three-steps technique Digest o intestinal da proteína de forrageiras e co-produtos da agroindústria produzidos no Nordeste Brasileiro por intermédio da técnica de três estágios
Elzania Sales Pereira,Patrícia Guimar?es Pimentel,Labib Santos Duarte,Arturo Bernardo Selaive Villarroel
Revista Brasileira de Saúde e Produ??o Animal , 2010,
Abstract: It was aimed to estimate the intestinal digestibility (ID) of rumen-undegradable protein (RUDP) of several feeds by a three-steps procedure. The evaluated forages were algaroba (Prosopis juliflora), canafístula (Pithecellobium multiflorum), flor-de-seda (Calotropis procera), jitirana (Ipomea sp.), juazeiro (Ziziphus joazeiro), mata-pasto (Senna obtusifolia), sabiá (Mimosa caesalpiniaefolia Benth), palma gigante (Opuntia ficus indica) and xique-xique (Cereus gounellei), and the agroindustry byproducts were pineapple (Ananas comosus L.), barbados cherry (Malpighia emarginata), cashew (Anacardium occidentale), coconut (Cocos nucifera L.), melon (Cucumis melo), passion fruit (Passiflora eduli), grape (Vitis labrusca) and anatto seeds (Bixa orellana L.). The feeds were incubated in rumen during 16 hours to determine the RUDP, and the residue was submitted to the digestion with pepsin solution during one hour, and pancreatic solution during 24 hours at 38oC, those residues were analyzed for total nitrogen. The estimative of RUDP forage ranged from 13.37 to 83.6%, and the RUDP by-product ranged from 39.14 to 89.06%. The intestinal digestion of RUDP of the forages ranged from 26.09 to 80.68%, while for by-products varied from 22.26 to 76.82%. The sabiá was the forage that presented the highest intestinal digestibility and digestive rumen-undegradable protein (RUDPd), and the flor-de-seda, the lowest digestibility; while for by-products, melon and cashew presented, respectively, the highest values for DI and RUDP. The coconut presented the lowest values for ID and RUDPd. Although, some formulation systems of diets for ruminant consider that the RUDP present constant ID, the data obtained in this work suggest variation among the different feeds. A pesquisa objetivou estimar a digestibilidade intestinal (DI) da proteína n o-degradada no rúmen (PNDR) de alimentos por intermédio da técnica de três estágios. As forragens avaliadas foram algaroba (Prosopis juliflora), canafístula (Pithecellobium multiflorum), flor-de-seda (Calotropis procera), jitirana (Ipomea sp.), juazeiro (Ziziphus joazeiro), mata-pasto (Senna obtusifolia), sabiá (Mimosa caesalpiniaefolia Benth), palma gigante (Opuntia ficus indica) e xique-xique (Cereus gounellei), bem como, os co-produtos do abacaxi (Ananas comosus L.), acerola (Malpighia emarginata), caju (Anacardium occidentale), coco (Cocos nucifera L.), mel o (Cucumis melo), maracujá (Passiflora eduli), uva (Vitis labrusca) e urucum (Bixa orellana L.). Os alimentos foram incubados no rúmen, por 16 horas para determina o da PNDR, sendo o resí
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.
Rendimiento de grano y forraje de lineas de triticale y centeno en Baja Ca-lifornia Sur , México
Bernardo Murillo Amador,Arturo Escobar H.,Homero Fraga Mancillas,Roberto Pargas Lara
Revista fitotecnia mexicana , 2001,
Abstract:
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