Resultados de búsqueda - "Cowes"

Genotype by environment interactions of claw health in Swedish dairy cattle in tie stalls and loose-housing por Johansson, Hanna

“…They are painful for the cow and costly for the producer. Differences in the prevalence of claw disease depending on housing system have previously been observed. …”

Antinutritionella substanser i åkerböna, ärter och blålupin vid utfodring till mjölkkor por Borling, Jenny

“…Field bean (Vicia faba), peas (Pisum sativum) and sweet lupin (Lupinus angustifolius) are good alternatives to soybean, but contain anti-nutritional substances (ANS) that could reduce their use as protein concentrates in dairy cow diets. The aim of this literature study was to review which ANS field bean, peas and sweet lupin contain and whether they affect dairy cows negatively. …”

Evolution of milk production systems in Tropical Latin America and its interrelationship with markets : An analysis of the Colombian case por Holmann, Federico J., Rivas Ríos, Libardo, Carulla, Juan E., Rivera, B., Giraldo, Luis Alfonso, Guzmán Pérez, Silvio, Martínez, M., Medina, A., Farrow, Andrew

“…Farms that de-wormed milking cows with low frequency against internal and external parasites obtained higher incomes and lower production costs in comparison with farms that de-wormed cows with higher frequency although there were no differences in productivity. …”
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Är det möjligt att föda upp ungtjurar i ett stall byggt för mjölkkor? : ekonomiskt, tekniskt och legalt por Karlsson, Johan, Wolf, Johan

Gestión de la información para el manejo adecuado de la mastitis por Ceballos M., Alejandro

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Consideraciones sobre el papel del rumen en las enfermedades de la producción por Tamayo Patiño, Carlos

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Desempenho de vacas mestiças em função de suplementação energética e proteica em dietas à base de cana-de-açúcar1 por Vargas, Lorena Ines Mestra, Rogério de Paula, Lana, José Carlos Peixoto Modesto da, Silva, Cristina Mattos, Veloso, Queiroz, Augusto Cesar de, Fonseca, Dilermando Miranda da, Rennó, Luciana Navajas

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Parametres de reproduction des bovins zebu du Malawi por Kamwanja, L.A.

“…Describes part of a series of studies aimed at characterizing the pre-pubertal reproductive performance of the Malawi Zebu cattle, monitoring 10 Malawi Zebu heifers over a 15-month period starting when the animals attained 15 months of age and ending when they were 30 months old; and 10 multiparous Malawi Zebu X Brahman cows were monitored for estrus immediately post partum until they were bred; w. partic. ref. to uterine involution, calving to first estrus, calving to first ovulation, calving to conception, calving interval, first estrus-conception, and to days to first rise in progesterone.…”
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CLEANED: un outil rapide d’évaluation ex-ante des impacts environnementaux, climatiques et économiques de systèmes de production animale - Example du Sénégal por Hoek, Rein van der

“…The training included a case study on the Ferlo region of Senegal where cow milk production by women farmers is well established. …”
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Reproductive parameters of Malawi Zebu cattle por Kamwanja, L.A.

“…Describes part of a series of studies aimed at characterizing the pre-pubertal reproductive performance of the Malawi Zebu cattle, monitoring 10 Malawi Zebu heifers over a 15-month period starting when the animals attained 15 months of age and ending when they were 30 months old; and 10 multiparous Malawi Zebu X Brahman cows were monitored for estrus immediately post partum until they were bred; w. partic. ref. to uterine involution, calving to first estrus, calving to first ovulation, calving to conception, calving interval, first estrus-conception, and to days to first rise in progesterone.…”
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Credit markets and the uptake of improved dairy technologies in Ethiopia por Freeman, H.A., Jabbar, M.A., Ehui, Simeon K.

“…It is hypothesized that constraints on credit limit the abilityof many smallholder farmers to make the investments in crossbred cows and/or purchase complementary inputs associated with improved dairy technologies. …”
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Phenotypic variability for conformation traits of BON cattle in Colombia por Medina Ríos, Hernán Issaías, Ramírez Toro, Edison Julián, Cerón Muñoz, Mario Fernando, Burgos Paz, William

“…For this study, using the nine-point scores of 20 CT as well as breed characterization and nal score in 929 cows were analyzed. Descriptive statistics alongside hierarchical cluster analysis were performed. …”
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La utilización de sangre de razas europeas y zebú para producción de leche en América Tropical por Alba, Jorge de, Solares, L.

“…Comparisons have been made for ten year performance of Jersey cows and two generations of halfbred Jersey x Zebu, and Brown Swiss x Zebu, at Turrialba. …”
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Reproducción y mortalidad de razas bovinas en clima subtropical de Argentina = Reproduction and mortality of breeds cattle in subtropical climate of Argentina por Verdoljak, Juan Jose, Pereira, Maria Mercedes, Gandara, Luis, Acosta, Fabian Arturo, Fernandez Lopez, Carolina, Martínez-González, Juan Carlos

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Efecto de la vacunación contra el virus de la fiebre aftosa sobre la pérdida de preñez en un rodeo de bovinos para carne por Rodriguez, Alejandro Martin, Guzman, Cesar Federico, Lopez Valiente, Sebastian, Maletti, Ernesto Juan, Canton, German Jose, Maresca, Sebastian

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Tackans kalciumomsättning under högdräktighet och tidig laktation por Karlsson, Klara

Quality analysis of raw milk along the value chain of the informal milk market in Kiambu County, Kenya por Orregård, Mattias

“…According to the East African Raw cow milk standard 3 of 18 (17%) samples from the farmers’ milk and 59% and 64% of agents and shops’ milk samples, respectively, exceeded the threshold limit of 5.0x104 cfu/mL with regard to coliform counts. …”

Gener som påverkar mjölkens sammansättning hos ko por Hultdin, Isabelle

Total proteolysis in bovine raw bulk milk of Northern Sweden por Toss Ekmyr, Elina

“…There was also a difference between the housing systems, where milk from tied cows had 10.6 % higher proteolysis, compared to milk from loose housed cows (P=0.002). …”

Estrategias de manejo para aumentar la eficiencia reproductiva en vaquillonas y vacas para carne en zonas áridas por Brunello, Gabriela Esther

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