Resultados de búsqueda - Cattle. Periodicals.

Hempseed cake as a protein feed for growing cattle por Eriksson, Maria

“…The conformation score of Swedish Red Cattle was on average 0.8 classes better than the conformation score for Swedish Holstein. …”

Net benefits of smallholder dairy cattle farms in Senegal can be significantly increased through the use of better dairy cattle breeds and improved management practices por Marshall, Karen, Salmon, Gareth R., Tebug, Stanly Fon, Juga, J., MacLeod, M., Poole, Elizabeth J., Baltenweck, Isabelle, Missohou, A.

“…The current work fills this evidence gap by performing a farm-level economic study comparing the keeping of different breed and cross-breed types of dairy cattle under different management levels. Data for the study were obtained by monitoring 220 smallholder dairy cattle farms, with a combined cattle population of about 3,000 animals, over an almost 2-yr period. …”
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Dry season cattle grazing in the seasonally dry tropical forests of Costa Rica: importance in cattle ranching livelihoods and impacts on forest botanical composition and diversity por Godinot, Florent

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Comparison of the efficiency of compensatory growth of Borana and Arsi cattle in Ethiopia por Tolla, N., Mirkena, T., Yiemegnuhal, A.

“…The results of this study indicated that responses to compensatory feeding are influenced by either severity of under nutrition, breed type of cattle or duration of compensatory fending. The optimum time and cost-benefit relationships at which complete recovery can be attained after a period of feed restriction require further investigation.…”
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Early exposure to and subsequent beef cattle performance with saline water por Lopez, Agustin, Arroquy, Jose Ignacio, Distel, Roberto Alejandro

“…However, HSW drank less (P<0.01) high salt water than LSW during the first two hours of drinking water restoration after a water deprivation period of 20 h. Overall, in the conditions of our study we did not find evidence that early exposure to saline water induces tolerance and improves later performance of beef cattle with salty water. …”
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Productivity of Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk por Trail, J.C.M., Sones, Keith R., Jibbo, J.M.C., Durkin, J.W., Light, D.E., Murray, M.

“…Evaluates the productivity of grade Boran cattle maintained by chemoprophylaxis under severe trypanosomiasis risk at Mkwaja ranch, Tanzania; uses data based on more than 20,000 calving records over the 10-year period from 1973 to 1982; discusses environmental influences on performance traits and links between tsetse population dynamics & cattle; includes comparison of Boran genotypes and its effect on pre-weaning growth characters.…”
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Growth and reproductive performance of Ogaden cattle at Haramaya University, Ethiopia por Mekuriaw, Getinet, Ayalew, W., Hegde, P.B.

“…This study was undertaken to study current statusof Sheko cattle breed and husbandry practices in southwestern Ethiopia betweenAugust 2004 and February 2005. …”
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Preliminary observations on the milk production of Boran type cattle in Ethiopia por Glen, J.C., Tessema, S., Mziray, P, Holland, L.

“…The milk production of five zebu cattle from south-western Ethiopia was estimated. …”
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Preliminary observations on the milk production of Borana cattle in the southern rangeland por Dessalegne, B.

“…A preliminary observational study was conducted to determine milk production levels and milk compositions characteristics of free-range Boran cattle and to examine variations. Results obtained using 19 Borana Cows indicate; milk yield per off take was 487.5 kg (Range: 319.9-691.6 kg) with an average lactations period of 249.2 days. …”
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Trypanosomiasis in N'Dama cattle under village management in Zaire por Ngamuna, S., D'Ieteren, G.D.M., Itty, P., Leak, S.G.A., Maehl, J.H.H., Minengu, M., Nagda, S.M., Paling, R.W., Rarieya, J.M., Thorpe, W.R., Trail, J.C.M.

“…The prevalence, species and intensity of trypanosome parasitaemia over an eighteen-month period, February 1986 to July 1987, are reported for some 700 N`Dama cattle managed in twenty-five village herds in forest and plateau areas of Idiofa, Zaire. …”
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Oxalate nephropathy in cattle associated with the consumption of Megathyrsus maximus in Argentina por Avellaneda Cáceres, Agustín, Lee, Stephen T., Ruiz, Alvaro Francisco, Sandoval, Gabriela Virginia, Colque Caro, Luis Adrián, Cook, Daniel, Aguirre Castro, Laura Sabrina, Uzal, Francisco A., Micheloud, Juan Francisco

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Productivity of ranch N'Dama cattle under trypanosomiasis risk por Feron, A., D'Ieteren, G.D.M., Durkin, J.W., Kakiese, O., Maehl, J.H.H., Mulungo, M., Nagda, S.M., Paling, R.W., Pelo, M., Rarieya, J.M., Sheria, M., Thorpe, W.R., Trail, J.C.M.

“…N’Dama cow and calf viabilities, parturition intervals, cow parturition and weaning weights and calf weaning weights were recorded during a three year period, January 1984 to December 1986. The management system was the same at Mushie and Kolo ranches (Zaire) where trypanosomiasis risk was high and zero, respectively. …”
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Influence of watering frequency on nutritional characteristics of cattle in Southeastern Kenya. por Musimba, N.K.R.

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Implications of restricted access to grazing by cattle in wet season in the Sahel por Ayantunde, Augustine A., Fernández Rivera, S., Hiernaux, Pierre H.Y., Tabo, Ramadjita

“…To address the problem of restricted access to grazing by cattle in wet season in the Sahel, a grazing trial was conducted to study the effect of duration of grazing and grazing method on cattle nutrition and performance. …”
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Epidemiology of vector-borne diseases in cattle from SE Uganda. por McOdimba, F.A.

“…Based on the data obtained by PCR amplification the effect of prophylactic drug intervention against trypanosomiasis was assessed over a period of six months. While isometamidium chloride treatment of cattle appeared to control trypanosomiasis in areas with low prevalence, the drug had no effect in controlling the disease in high prevalence areas. …”
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Non-genetic factors affecting growth of Ethiopian Boran cattle por Kassa-Mersha, H., Arnason, T.

“…The aim of this study was therefore to investigate the effects of certain environmental factors on the birth weight and growth in a herd of Boran cattle bred at the Adamitulu cattle Improvement Ranch in Ethiopia. …”
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Studies on erythropoietin responses in cattle experimentally infected with trypanosoma congolense. por Buza, J.J.

“…This suggests the bone marrow was unresponsive to elevated plasma erythropoietin. Cattle treated in the chronic stage of T. congolense infections recovered their normal PCV although their erythropoietin levels were below the detection limit of the assay. …”
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An insight into population structure and genetic progress of Argentinean Holstein cattle por Pardo, Alan Maxs, Casanova, Daniel, Rubio, Natalia, Andere, Cecilia, Rodríguez, Edgardo, Corva, Pablo

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Will dairy cattle production in West Africa be challenged by heat stress in the future? por Rahimi, J., Mutua, John Y., Notenbaert, An Maria Omer, Dieng, D., Butterbach-Bahl, Klaus

“…Based on the average results of three GCMs, by 2071–2100, around 22% of dairy cattle population currently living in this area is expected to experience around 70 days more ofsevere/dangerheat stress (compare with the historical period), especially in the southern half of West Africa. …”
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Weight gain and enteric methane production of cattle fed on tropical grasses por Korir, Daniel, Marquardt, Svenja, Eckard, Richard, Sánchez, Andrea C., Dickhoefer, Uta, Merbold, Lutz, Butterbach-Bahl, Klaus, Jones, Christopher S., Robertson-Dean, M., Goopy, John P.

“…Xaeres (Brachiaria), and quantify enteric CH4 production of cattle fed on them. Methods: Yearling Boran steers (n:18; initial liveweight 216 ± 5.8 kg (mean ± s.e.m.) were allocated to one of three grasses, in a completely randomised design and fed ad libitum for two feeding periods, each period lasting for 70 days. …”
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