Resultados de búsqueda - "Cowes"

Persistency of lactation and comparison of different persistency measures in indigenous and crossbred cows at Bako, Ethiopia por Gebreyohanes, Gebregziabher, Tegegne, Azage, Diedhiou, M.L., Hegde, B.P.

Materias: “…cows…”
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Effects of trypanosomiasis on reproduction of East African Zebu cows exposed to drug-resistant trypanosomes por Rowlands, G.J., Mulatu, W., Authié, Edith, D'Ieteren, G.D.M., Leak, S.G.A., Nagda, S.M.

“…Approximately 320 East African Zebu cows over 36 months of age were monitored monthly from 1986 to 1992 in nine village herds in an area of high trypanosomiasis risk in southwest Ethiopia where there was resistance to all available trypanocidal drugs. …”
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Profitability of replacing milk with a concentrate for calves of cows requiring calf at foot for milking por Ouologuem, B., Reese, A.A., Traoré, A., Debrah, S.K.

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Effects of work on reproductive and productive performance of cross-bred dairy cows in the Ethiopian highlands por Agyemang, K., Astatke, A., Anderson, F.M., Wolde-Mariam, W.A.

“…Reports the effect of draught on milk production, reproductive and productive performance of crossbred dairy cows which had completed the first two lactations. …”
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Reproductive performance of Gyr cows: The effect of weaning age of calves and pospartum energy intake por Moore, C.P., Rocha, Carlos Magno Campos da

“…Weaning age significantly affected postpartum weight loss in cows. Six months after calving, cows that nursed calves for 1 mo were 89 kg heavier than those that nursed calves for 6 mo (384 vs 295 kg; P less than .05). …”
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Lifetime under-nutrition and lactation performance of Zebu and Zebu x Holstein cows in the tropics por Jenet, A., Tegegne, Azage, Osuji, P.O., Yimegnuhal, A., Kreuzer, M., McCrabb, G.J., Fernández Rivera, S.

“…How- ever, the milk of Zebu cows contained more fat, protein and solids than that of crossbred cows. …”
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Use of crossbred cows for dairy-draught under smallholders farm conditions of Holetta area por Alemayehu, M., Gebre-Wold, A., Tegegne, Azage

“…Lactation yield of non-working cows was significantly higher (2103.57 versus 1725.17 Kg) than that of working cows. …”
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Factors influencing reproductive performance of cows from different Nguni ecotypes in southern Mozambique por Maciel, S.M.A., Amimo, Joshua O., Martins, M., Okeyo Mwai, Ally, Scholtz, M.M., Neser, F.W.C.

Materias: “…cows…”
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The reproductive responses of two breeds of beef cows and the performance of their progeny in two contrasting environments por Niekerk, A. van, Lishman, A.W, Lesch, S.F.

Materias: “…cows…”
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Crossbreeding beef cattle in western Uganda. 1. Performance of Ankole, Boran and zebu cows por Trail, J.C.M., Sacker, G.D., Fisher, I.L.

Materias: “…cows…”
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Haematological studies in N'Dama, German Brown and N'Dama X Brown cows por Olusanya, S.K.

Materias: “…cows…”
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Effects of carbon to nitrogen ratio on vermicomposting of rice husk and cow dung with fresh biosolid por Kendie, H.A.

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Transforming traditional smallholder cow milk production systems in Ethiopia: Ex-ante evaluation por Negassa, A., Gebremedhin, Berhanu, Nigussie, K., Gebru, G., Desta, S., Shapiro, Barry I., Dutilly-Diane, C., Tegegne, Azage

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Mad cows and sick birds: Financing international responses to animal disease in developing countries por Winter-Nelson, A., Rich, Karl M.

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Mzima Cow Project: A transgenics approach to the basic mechanisms underlying trypanosome resistance por International Livestock Research Institute

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Morphometric Characterization and Zoometric Indices of High-Andean Creole Cows from Southern Peru por Ccalta Hancco, Ruth, Huayta Arizaca, Rito Felipe, Salcedo Quispe, Elvis Lizandro, Valverde, Anthony, Cucho Dolmos, Hernán Carlos, Canaza-Cayo, Ali William, Acuña Leiva, Alex Yony, Estrada Cañari, Richard

Materias: “…Perú; Peru; Características; Characteristics; Adaptado; Adaptive; Genetic resources; Recursos genéticos; Cows; Vacas…”
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Cow management modulates gene expression in the mammary gland, a possible epigenetics role por Gigli, Isabel, Maizon, Daniel Omar

Materias: “…Cows…”
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Prevalence and risk factors of teat end hyperkeratosis in cows from the Urals region of Russia por Barkova, A.S., Verkhoturov, V.V.

Materias: “…Cows…”
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Frequencies of β-casein variants and their influence on genetic merit for production traits in Holstein cows por Caffaro, María Eugenia, Raschia, Maria Agustina, Maizon, Daniel Omar, Poli, Mario Andres

Materias: “…Dairy Cows…”
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Frequency of Neospora caninum infections in beef cow–calf operations under extensive management por Rodriguez, Alejandro Martin, Maresca, Sebastian, Cano, Dora Beatriz, Armendano, Joaquín Ignacio, Combessies, Gustavo, Lopez Valiente, Sebastian, Odriozola, Ernesto Raul, Spath, Ernesto Juan, Odeon, Anselmo Carlos, Campero, Carlos Manuel, Moore, Prando Dadin

“…Serum samples from 72 multiparous cows assigned to each beef cow–calf operations were obtained every 3 months during 2 years. …”
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