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Desempenho e características da carca？a de cordeiros confinados alimentados com gr？os de soja
Urano, Fumi Shibata;Pires, Alexandre Vaz;Susin, Ivanete;Mendes, Clayton Quirino;Rodrigues, Gustavo Henrique;Araujo, Rafael Canonenco de;Mattos, Wilson Roberto Soares;
Pesquisa Agropecuária Brasileira , 2006, DOI: 10.1590/S0100-204X2006001000010
Abstract: the objective of this work was to evaluate the effects of raw soybean on lamb performance, carcass yield and lamb cuts. raw soybean was added at 0, 7, 14 and 21% of the diet dry matter (isonitrogenous). sixty-four santa inês lambs (initial body weight 19.5±0.19 kg and 75±2 days old) were assigned to a complete randomized block design according to body weight and age at beginning of the trial. dry matter intake (1.1, 1.0, 0.9 and 0.9 kg per day), crude protein intake (199.2, 181.5, 179.0 and 175.2 g per day) and average daily gain (298, 275, 280, 255 g per day) decreased linearly, and ether extract intake (43.8, 49.7, 57.2 and 66.0 g per day) increased linearly, as levels of raw soybean increased. feed conversion, carcass yield and lamb cuts were not affected by raw soybean inclusion in the diet. the inclusion of raw soybean in high concentrate diets provides satisfactory feedlot lamb performance.
Avalia？？o de uma metodologia profilática contra a mastite clínica em ovelhas da ra？a Santa Inês
Melo, C.B.;Almeida, B.M.;Oliveira, A.A.;Azevedo, H.C.;Melo, L.S.S.;Mata, S.S.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2008, DOI: 10.1590/S0102-09352008000400033
Abstract: mastitis is an important problem for the santa inês ewes and is a disease strongly related to the management carried out in the herd. a comparative study was carried out between the proposed method based on drying (treatment) and the traditional method (control). sixty-two santa inês ewes raised in a semi-extensive system were divided in two groups of 31 ewes each: treatment group (g1) and control group (g2). the animals were monitored each week searching for clinical sings of mastitis. in 8.4% of g1 and 41.3% of g2 animals, the udder was warm and hyperemic. the presence of residual milk was lower in g1 (24.3%) compared to those of g2 (74.2%). the proposed treatment for the control of ovine mastitis significantly reduced the frequency of the clinical signs of the disease.
Effect of concentrate: voluminous ratio on the performance of Santa Inês lambs
Oliveira, Rodrigo Palomo de;Perez, Juan Rámon Olalquiaga;Muniz, Joel Augusto;Evangelista, Antonio Ricardo;Souza, José Camis？o de;Barcelos, Adauto Ferreira;
Ciência e Agrotecnologia , 2009, DOI: 10.1590/S1413-70542009000600025
Abstract: the experiment was carried out in the sheep division of universidade federal de lavras, aiming to evaluate the effect of different concentrate : voluminous ratio on the performance of santa inês lamb after wean. 40 lambs, male uncastrated, were used and fed with four different diets: diet a (100% concentrate), diet b (75:25 concentrate : voluminous) , diet c (50:50 concentrate : voluminous) , diet d (25:75 concentrate : voluminous). the experimental diets were isoproteic, differing only on its levels of concentrate : voluminous and balanced to meet the nutritional demands according to the recommendation of the agricultural research council (1980). the experimental period was not pre-established, because it corresponded to the necessary period for the last lamb to reach the live weight of 35kg. the dry matter consumption (dmc), crude protein consumption (cpc), fiber in neutral detergent consumption (fndc) and fiber in acid detergent consumption (fadc), were affected by the different concentrate : voluminous ratio, in which, the animals that received diets with higher concentrate inclusion presenting better results for the variables related to the development. the lambs fed with the diet containing higher inclusion of voluminous did not present weight gain, on the contrary, presented weight loss, since none of the animals reached slaughter weight and the mortality rate was extremely high (80%).
Utiliza？？o de monoam？nio fosfato em ra？？es com elevado teor de polpa cítrica para cordeiros em confinamento
Rodrigues, Gustavo Henrique;Susin, Ivanete;Pires, Alexandre Vaz;Queiroz, Mário Adriano ávila;Amaral, Rafael Camargo do;Biehl, Marcos Vinicius;Gentil, Renato Shinkai;Ferreira, Evandro Maia;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011001000028
Abstract: the objective of this experiment was to evaluate the effects of adding monoammonium phosphate (map) in high concentrate diets containing citrus pulp on feedlot lamb performance and carcass characteristics. twenty four santa ines lambs (26.4 kg of initial body weight and 125 d old) were penned individually and used in a randomized complete block design according to body weight and age at beginning of the trial. diets were formulated to provide a similar amount of crude protein and contained 70% of citrus pulp on a dm basis. map was added at 0, 0.3, 0.6, and 0.9% of the diet dm corresponding to the experimental treatments con, 0.3map, 0.6map, and 0.9map, respectively. there was a linear decrease in dry matter intake and average daily gain, although no changes on carcass measures were observed. the use of map in citrus pulp diets affects lamb growth negatively.
Avalia？？o da Composi？？o de Cortes Comerciais, Componentes Corporais e órg？os Internos de Cordeiros Confinados e Alimentados com Dejetos de Suínos
Oliveira, Marcus Vinícius Morais de;Pérez, Juan Ramón Olalquiaga;Alves, Eduardo Luis;Martins, Alessandra Rodrigues Vieira;Lana, Rogério de Paula;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000600018
Abstract: twenty-one lambs were used, nine of the bergamácia and 12 santa inês breed, were confined individually for 75 days, and fed diets containing 24% of swine wastes, in the form of biju (obtained by the scratching and sweeping of the floor of the growth and termination stalls) or dsw - dry sifted wastes (constituted by the solid part of the material contained of the water of wash of the stalls, obtained through sieves of fine mesh). there was no diet effect in the percentage of muscle, fat and bone of the analyzed cuts. the santa inês lambs showed larger amount of muscle in the ham and a larger loin eye area that bergamácia; these however showed a larger fat proportion in the whole shoulder when the joints were expressed in % of the weight of each joint. the diet controls also propitiated one larger loin eye area that the diet with biju. a larger proportion of small intestine, expressed in % weight of the digestive system, was verified in the animals fed with the diets controls in relation those fed whit dps. the lambs of the santa inês breed showed larger weight of the windpipe, when this parameter was expressed in kg and in % of the empty weight; already the bergamácia presented larger amount of skin, when this was expressed as % of the empty weight. it is concluded that the use of swine wastes doesn't affect the composition of the commercial joints, weights of body components and internal organs.
Intake, apparent nutrient digestibility and ingestive behavior of sheep fed cashew nut meal
Pimentel, Patrícia Guimar？es;Pereira, Elzania Sales;Queiroz, Augusto César de;Mizubuti, Ivone Yurika;Regadas Filho, José Gilson Louzada;Maia, Iana Sérvulo Gomes;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000500026
Abstract: the objective of this work was to evaluate intake, nutrient apparent digestibility and ingestive behavior of sheep fed rations with cashew nut meal (cnm) at the levels of 0; 10; 20 and 30% in the concentrate ration. it was used a double 4 × 4 latin square experimental design. intakes of dry matter (dm), organic matter, crude protein, mineral matter, non-fibrous carbohydrates and total digestible nutrients were not influenced by the addition of cnm, however, intake of neutral detergent fiber (ndf), acid detergent fiber and total carbohydrates presented a quadratic behavior with the increase of content of lipids in the ration. apparent digestibility of dm, organic matter, crude protein, ndf, acid detergent fiber and non-fibrous carbohydrates was not influenced by the addition of cnm in the rations; however digestibility of ether extract and total carbohydrates presented quadratic and linear behavior, respectively. it was not observed any significant differences in time spent with feeding and rumination, however, total chewing time was influenced, presenting increasing linear behavior with the levels of cnm. concerning to intakes of dry matter and ndf per hour, feed efficiency and rumination were not affected by increase on lipid content in the rations. ruminating chews time per rumen bolus, number of ruminated boli and the number of ruminating chews per day were not influenced by experimental rations. in sheep feeding management, it is suggested as a feeding alternative the use of up to 30% of cnm in the concentrate ration if it is available.
Perfil de ácidos graxos e composi？？o química do músculo longissimus dorsi de cordeiros alimentados com dietas contendo polpa cítrica
Rodrigues, Gustavo Henrique;Susin, Ivanete;Pires, Alexandre Vaz;Alencar, Severino Matias de;Mendes, Clayton Quirino;Gentil, Renato Shinkai;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000600025
Abstract: the objective of this study was to determine the effects of replacing corn by dried citrus pulp on chemical composition and fatty acids profile in longissimus dorsi muscle of thirty-two santa ines lambs, slaughtered at average weight of 33 kg at 141 days of age. lambs were fed a 90% concentrate (ground corn and/or dried citrus pulp, soybean meal and minerals) and 10% coastcross hay (cynodon spp) diet. dried citrus pulp was added at 23.7, 46.1 and 68.4% of dry matter replacing corn by 33, 67 and 100%, respectively. total replacement of corn by dried citrus pulp resulted in 177% increase in linolenic acid concetration (c18:3) while a partial replacement showed 72% increase in conjugated linoleic acid (c18:2 cis9 trans11). there was no change in total saturated, monounsaturated and polyunsaturated fatty acids concentration. however, the intramuscular fat content of longissimus muscle decreased as dried citrus pulp increased in the diet, with no effect on moisture, protein and mineral percentage. the replacement of corn by dried citrus pulp in the rations changes the quantity and profile of lipids in longissimus muscles of lambs.
Características morfométricas e de carca？a de cabritos e cordeiros terminados em confinamento
Sousa, Wandrick Hauss de;Brito, Evaneusa de Alves;Medeiros, Ariosvaldo Nunes de;Cartaxo, Felipe Queiroga;Cezar, Marcílio Fontes;Cunha, Maria das Gra？as Gomes;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000700025
Abstract: the objective of this study was to evaluate the genotype effect on the morphometric and quantitative characteristics of carcasses of kids and lambs finished in feedlot. a total of 34 entire male animals was used, 12 kid goats (？ boer ′ ？ srd), 12 kid goats (？ anglo nubiano ′ ？ srd) and 10 santa inês sheep, with initial live weight of 18.3 kg, average age of 135 days at the beginning of the trial. the averages of withers height, corporal compactness and thoracic perimeter of the santa inês genotype were superior to those of the kid genotypes. the hot and cold carcass dressing of the genotypes was similar, but losses from cooling in the anglo nubiano crossbred kid goats and santa inês lambs were larger than in the boer crossbreds. significant differences were observed among the genotypes only for carcass compactness. the lambs deposited more covering fat, presented larger loin eye area and leg circumference than the kid goats.
Características quantitativas da carca？a de cordeiros de diferentes genótipos submetidos a duas dietas
Cartaxo, Felipe Queiroga;Sousa, Wandrick Hauss de;Costa, Roberto Germano;Cezar, Marcílio Fontes;Pereira Filho, José Morais;Cunha, Maria das Gra？as Gomes;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011001000023
Abstract: the objective of this study was to evaluate the quantitative carcass traits of lambs from different genotypes receiving different levels of energy in the diet. fifty-four non-castrated lambs - 18 santa inês (si), 18 f1dorper × santa inês (dp × si) and 18 f1santa inês × no defined breed (si × ndb) - of average 150 days old and 22.6-kg bw were used in the beginning of the experiment. diets contained 17% crude protein and 2.40 mcal/kg dm or 2.90 mcal/kg dm. lambs fed the diet containing 2.90 mcal/kg dm showed higher final live and carcass weight, loin eye area, percentage of internal fat, muscularity index, compactness of the carcass index, percentage of fat and lower muscle:fat relation. these lambs' carcasses also presented lower percentage of cold loss and higher weight and percentage of shoulder and leg. carcasses of dp × si lambs were superior in fat thickness, gr site, percentage of fat, muscle:bone relation, muscularity index, weight and percentage of loin. santa inês sheep showed higher muscle:fat relation. both diet and genotype influence quantitative carcass traits of lambs.
Apparent digestibility of diets with combinations of soybean hulls and coastcross (Cynodon sp.) hay offered to ram lambs
Araujo, Rafael Canonenco de;Pires, Alexandre Vaz;Susin, Ivanete;Urano, Fumi Shibata;Mendes, Clayton Quirino;Rodrigues, Gustavo Henrique;Packer, Irineu Umberto;
Scientia Agricola , 2008, DOI: 10.1590/S0103-90162008000600003
Abstract: soybean hulls (sh) are an alternative fiber source that may be used to maintain neutral detergent fiber (ndf) concentration while increasing the energy concentration of ruminant diets. the objective of this experiment was to determine the effects of replacing coastcross (cynodon sp.) hay ndf by sh ndf on the apparent digestibility of nutrients and nitrogen balance of santa inês ram lambs. twenty-four animals (42.5 ± 3.6 kg of body weight and six months old) were placed in metabolism crates and assigned in a randomized complete block design defined by body weight (bw). experimental diets provided a similar concentration of ndf (52%) and crude protein (15%). hay ndf from a 70% roughage-based diet was replaced with sh ndf by 33%, 67%, and 100%, resulting in 0, 25, 52, and 77% of sh in the dietary dry matter (dm), respectively. there was a linear increase (p < 0.01) on dry matter and organic matter (om) intakes expressed as kg day-1 and % of bw, with sh inclusion. the om digestibility showed a quadratic effect (p < 0.05) with sh inclusion while crude protein digestibility showed a linear decrease (p < 0.0001). a quadratic effect was also observed for ndf (p < 0.05) and acid detergent fiber (p < 0.01) digestibilities. the n retentions, as % of n consumed and % of n absorbed, resulted in quadratic effects (p < 0.05) with sh addition. there was no effect (p > 0.05) on water intake when sh replaced hay. the sh can replace forage and may be included up to 77% in the dietary dm of ram lambs with satisfactory values of nutrient digestibilities.
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