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| Registros recuperados: 389 | |
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| Colavecchia,S.B.; Jolly,A.; Fernández,B.; Fontanals,A.M.; Fernández,E.; Mundo,S.L.. |
| The aim of the present study was to determine whether lipoarabinomannan (LAM), in combination with Freund’s incomplete adjuvant (FIA), was able to improve cell-mediated and antibody-mediated immune responses against ovalbumin (OVA) in cattle. Twenty-three calves were assigned to four treatment groups, which were subcutaneously immunized with either OVA plus FIA, OVA plus FIA and LAM from Mycobacterium avium subsp avium, FIA plus LAM, or FIA alone. Lymphoproliferation, IFN-γ production and cell subpopulations on peripheral blood mononuclear cells before and 15 days after treatment were evaluated. Delayed hypersensitivity was evaluated on day 57. Specific humoral immune response was measured by ELISA. Inoculation with LAM induced higher levels of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lipoarabinomannan; Cattle; Immunomodulation; Mycobacterium avium subsp avium. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000200008 |
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| Ardicli,Sena; Soyudal,Bahadir; Samli,Hale; Dincel,Deniz; Balci,Faruk. |
| ABSTRACT The objectives of the study were to evaluate allelic frequencies and test the association between STAT1, OLR1, CSN1S1, CSN1S2 , and DGAT1 gene polymorphisms and milk production traits including lactation milk yield, 305 days milk yield, days before peak milk production, and peak milk yield. In addition, samples of milk were analysed for fat, protein, lactose, and total solid contents. A total of 168 purebred Holstein-Fresian cows were genotyped using polymerase chain reaction and restriction fragment length polymorphism methods. Statistical analysis was carried out using least square methods of the general linear model procedure. Significant differences were found between genotypes of the CSN1S2 locus in relation to milk protein content. In... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Dairy cow; Milk composition; Polymorphism. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100411 |
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| Lohakare,Jayant; Pattanaik,Ashok Kumar. |
| In order to compare the effects of addition of fluorine (F) in diets differing in protein content on the urinary F excretion, blood profile and thyroid hormones, 30 crossbred calves (6-8 months) initially exposed to different protein levels were allotted into six groups in a 3 × 2 factorial design. The factors included three different levels of protein: normal (NP; 100%), low (LP; 75%), and high (HP; 125%) besides two levels of supplemental fluorine (as sodium fluoride) at 0 or 200 mg/kg diet. The animals were fed a wheat straw-based diet for 210 d. Feeding NP diets decreased urinary fluoride excretion, measured at 42 d intervals, compared with LP diets. Blood levels of hemoglobin and haematocrit, measured at 70 d intervals, were not affected by either... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood; Cattle; Concentrate; Fluorosis; Sodium fluoride; Urine. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001000009 |
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| Vedovatto,Marcelo; Diogo,José Mauro da Silva; Beltrame,João Artêmio Marin; D'Oliveira,Marcella Cândia; Silva,Cássio José da; Mendes,Clayton Quirino; Cabral Filho,Sergio Lucio Salomon; Franco,Gumercindo Loriano. |
| ABSTRACT The objective was to evaluate the addition of antibiotic growth promoters to free-choice mineral supplement on ingestive behavior, mineral intake, and growth performance of grazing bulls. Sixty Nellore bulls [initial body weight (BW) of 219±17.8 kg and 15±2 months of age] were divided in 12 marandu grass paddocks. The treatments were: mineral supplement (control), mineral supplement + virginiamycin (VIRG), mineral supplement + lasalocid sodium (LASA) and mineral supplement + salinomycin sodium (SALI). Mineral supplements were formulated with target intake of 60 g d−1 and the growth promoters of 75 mg 100 kg−1 of BW. The experimental design was the completely randomized blocks. There was no treatment effect on ingestive behavior or mineral intake;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed additive; Cattle; Ionophore; Lasalocid; Salinomycin; Virginiamycin. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100706 |
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| Peixoto,M.G.C.D.; Bergmann,J.A.G.; Fonseca,C.G.; Penna,V.M.; Pereira,C.S.. |
| Data on 1,294 superovulations of Brahman, Gyr, Guzerat and Nellore females were used to evaluate the effects of: breed; herd; year of birth; inbreeding coefficient and age at superovulation of the donor; month, season and year of superovulation; hormone source and dose; and the number of previous treatments on the superovulation results. Four data sets were considered to study the influence of donors elimination effect after each consecutive superovulation. Each one contained only records of the first, or of the two firsts, or three firsts or all superovulations. The average number of palpated corpora lutea per superovulation varied from 8.6 to 12.6. The total number of recovered structures and viable embryos ranged from 4.1 to 7.3 and from 7.3 to 13.8,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Zebu; Superovulation; Environmental effects; MOET nucleus. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000400019 |
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| BIANCHIN, I.; GOMES, A.; FEIJO, G. L. D.; VAZ, E. C.. |
| Nos últimos anos, a Embrapa Gado de Corte tem recebido inúmeras indagações por carta, telefone, em palestras etc. sobre a utilização do alho, em especial, no controle da mosca-dos- chifres (Haematobia irritans irritans) em bovinos. O principal objetivo do experimento foi verificar a eficácia do alho em pó, adicionado ao sal mineral, no controle de mosca-dos-chifres, carrapatos (Boophilus microplus) e helmintos de bovinos. Foram utilizados 42 novilhos cruzados, distribuídos em dois grupos de 21 animais, levando-se em consideração a raça, o peso, ovos por grama de fezes (OPH), numero de moscas, idade e o numero de carrapatos. Durante todo o período experimental, os grupos ficaram em piquetes separados com pastagens de Brachiaria decumbens. Um grupo de... |
| Tipo: Folhetos |
Palavras-chave: Sanidade; Mosca-dos-chifres; Controle; Brasil; Health; Horn fly; Helmints; Control; Brazilian savannas; Allium Sativum; Boophilus Microplus; Bovino; Carrapato; Cerrado; Haematobia Irritans; Helminto; Parasito; Brazil; Cattle; Parasites; Ticks. |
| Ano: 1999 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322255 |
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| Cruz Jiménez, Joaquín. |
| La proteína de origen animal es básica en la dieta de los mexicanos y las fuentes principales de ésta son las carnes de ave, bovino y porcino, de las que en 2011 se consumieron 60 kilogramos por persona, correspondiendo a la de bovino 16.5 kilogramos. En este estudio se identifica a las principales variables determinantes del mercado de carne de bovino en México y se estima el efecto de dichas variables considerando los precios de importación de la carne y de maíz y sorgo. Para establecer y cuantificar el efecto sobre el mercado de sus principales variables determinantes se diseñó un modelo econométrico de ecuaciones simultáneas que fue estimado por mínimos cuadrados en dos etapas con información secundaria para el periodo de 1970 a 2011. Los resultados... |
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Palavras-chave: Bovino; Granos forrajeros; Elasticidad; Saldo de comercio; Oferta; Demanda; Cattle; Feed grains; Elasticity; Balance of trade; Supply; Demand; Economía; Doctorado. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1881 |
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| Furtado,Dermeval A.; Peixoto,Adriana P.; Nascimento,José W. B. do; Regis,Jonh E. F.. |
| The objective of this study was to evaluate the quality of air, bioclimatic indexes of facilities and physiological indices of Guzera and Sindhi calves, reared in climatic conditions of Agreste. The study was conducted at the experimental station of Alagoinha, PB, Brazil, using 16 calves of Sindi and Guzerá races. The average concentration of oxygen (20.85%), ammonia (1.99 ppm), carbon monoxide (<0.01 ppm), methane (0.13 ppm) and hydrogen sulfide (<0.01) within facilities, were within the limits established by the Brazilian and international standards, for both animals and workers. The bioclimatic index of temperature and humidity and the temperature of the black globe and humidity index were within the thermal comfort zone for cattle in most of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environment; Cattle; Adaptability; Physiological responses. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100001 |
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| WEERASOORIYA, Gayani; SIVAKUMAR, Thillaiampalam; LAN, Dinh Thi Bich; LONG, Phung Thang; TAKEMAE, Hitoshi; IGARASHI, Ikuo; INOUE, Noboru; YOKOYAMA, Naoaki. |
| A PCR-based survey of hemoprotozoa parasites detected Babesia bigemina, Theileria orientalis and Trypanosoma theileri among cattle and water buffalo in Vietnam, and a new Babesia sp. closely related to Babesia ovata was detected in cattle only. In addition, Theileria annulata and Trypanosoma evansi were not detected in both cattle and water buffalo. Phylogenetic analysis detected T. orientalis MPSP genotypes 3, 5, 7 and N3 in cattle and 5, 7, N1 and N2 in water buffalo. Additionally, water buffalo-derived T. theileri CATL sequences clustered together with a previously reported cattle-derived sequence from Vietnam. This is the first report of a new Babesia sp. in cattle, and T. orientalis MPSP genotype 7 and T. theileri in water buffalo in Vietnam. |
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Palavras-chave: Cattle; Epidemiology; Hemoprotozoa; Vietnam; Water buffalo. |
| Ano: 2016 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4344 |
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| Lawrence, John D.; Yeboah, Godfred. |
| Source-verified (SV) feeder cattle auctions were held in Bloomfield, Iowa, each October, November, and December from 1997-2000. This study compares price data from these SV auctions to traditional auctions at the same location to determine whether a premium exists for SV feeder cattle. Hedonic pricing models were estimated to evaluate the price effects of lot characteristics, market forces, and type of market (SV versus regular sale). The SV cattle were sorted and pooled into large lots. The larger lot size, consistent with early research, earned large price premiums. After accounting for lot size, the SV premium for lighter cattle (< 650/600-pound steers/heifers) was estimated at $1.30/cwt, and was significant. The SV premium over and above lot size... |
| Tipo: Journal Article |
Palavras-chave: Auction; Cattle; Hedonic pricing model; Markets; Source-verified auction; Livestock Production/Industries. |
| Ano: 2002 |
URL: http://purl.umn.edu/14722 |
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| Registros recuperados: 389 | |
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