Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Juan P. Keim"'
Publikováno v:
Animals, Vol 12, Iss 19, p 2672 (2022)
A study was undertaken to assess the effect of supplementation with sugar beet silage, corn silage, or high-moisture corn on dairy performance, rumen, and plasma metabolites in dairy cows under conditions of restricted grazing in spring. Eighteen mul
Externí odkaz:
https://doaj.org/article/d14a225f1fa04c988103d031970b8efb
Autor:
Ignacio E. Beltran, Ivan Calvache, Rocio Cofre, Francisco Salazar, Juan P. Keim, Alvaro Morales, Ruben G. Pulido, Marta Alfaro
Publikováno v:
Agronomy, Vol 12, Iss 1, p 15 (2021)
Nitrogen that is excreted through the urine and dung of cattle is an important source of nitrous oxide and ammonia emissions. In Chile, several studies have evaluated nitrogen (N) intake and its partitioning into urine and dung from beef and dairy ca
Externí odkaz:
https://doaj.org/article/4be7c48365d14c83b034dad7c4602b0a
Autor:
Einar Vargas-Bello-Pérez, Carolina Geldsetzer-Mendoza, Rodrigo A. Ibáñez, José Ramón Rodríguez, Christian Alvarado-Gillis, Juan P. Keim
Publikováno v:
Animals, Vol 11, Iss 1, p 107 (2021)
Brassica crops such as kale and swede can be supplied to cow diets during winter, however little is known about the effects of feeding those forage brassicas to lactating cows on cheese nutritional characteristics of milk and cheese. This study evalu
Externí odkaz:
https://doaj.org/article/eea543ab5f95427cbe0645750536161d
Publikováno v:
Animals, Vol 10, Iss 6, p 1076 (2020)
The objective of this study was to determine the effect of perennial ryegrass (PRG) forages differing in their concentration of water-soluble carbohydrates (WSC) and crude protein (CP), and collected in spring and autumn, on in vitro rumen fermentati
Externí odkaz:
https://doaj.org/article/2e27532218fb4d0eb851624fcf78f7e8
Autor:
Ignacio E. Beltran, Daniel Tellez, Jaime Cabanilla, Oscar Balocchi, Rodrigo Arias, Juan Pablo Keim
Publikováno v:
Agronomy, Vol 12, Iss 8, p 1953 (2022)
The aim of the study was to evaluate the effect of grazing Lolium perenne (Lp) and Bromus valdivianus (Bv) on the average daily weight gain (ADG) and nitrogen use efficiency (NUE) of Holstein Friesian heifers. Thirty heifers strip-grazed two pasture
Externí odkaz:
https://doaj.org/article/3fbe6749c1924d9f8d94c6438fd4dfc5
The estimation of the economic impact of heat stress on the dairy sector is relevant to the implementation of policies to cope with it. We collected hourly records (November-March 2017–2022) from 19 weather stations representing the eight Chilean d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78265e06ce6e8b297624333fda3ef79b
https://doi.org/10.21203/rs.3.rs-2842956/v1
https://doi.org/10.21203/rs.3.rs-2842956/v1
Publikováno v:
Animals, Vol 10, Iss 6, p 1080 (2020)
Brassica forage may be included in pigs’ diet as a dietary fiber ingredient to reduce feeding costs, benefit gut health, immune system, reproductive traits, and welfare. However, they contain antinutritional factors which may affect feeding behavio
Externí odkaz:
https://doaj.org/article/5525ed53589d4d1ab362d3216acac434
Publikováno v:
Animals, Vol 10, Iss 2, p 212 (2020)
During the first hours after the allocation of a grazing strip (first grazing session, GS), dairy cows eat most of the daily dry matter (DM) available. There are few studies that analyze how the grazing-down process changes the characteristics of the
Externí odkaz:
https://doaj.org/article/53d346a7ffbf4a9680884f69a7449ca1
Publikováno v:
Austral Journal of Veterinary Sciences; Vol. 54 No. 3 (2022); 103-114
Austral Journal of Veterinary Sciences; Vol. 54 Núm. 3 (2022); 103-114
Toro-Mujica, P, Gebauer, R, Tajonar, K, Keim, J P & Vargas-Bello-Pérez, E 2022, ' Characterisation of dairy female calf management practices in southern Chile ', Austral journal of veterinary sciences, vol. 54, no. 3, pp. 103-114 . https://doi.org/10.4067/S0719-81322022000300103
Austral Journal of Veterinary Sciences; Vol. 54 Núm. 3 (2022); 103-114
Toro-Mujica, P, Gebauer, R, Tajonar, K, Keim, J P & Vargas-Bello-Pérez, E 2022, ' Characterisation of dairy female calf management practices in southern Chile ', Austral journal of veterinary sciences, vol. 54, no. 3, pp. 103-114 . https://doi.org/10.4067/S0719-81322022000300103
The objective of this study was to characterise husbandry and technical-productive practices at the calf rearing stage in dairy farms in Los Lagos Region, southern Chile. A face-to-face survey was applied to 22 dairy farms in Los Lagos Region in 2017
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56e2d7b484bab65f2c18a94e6f702b46
http://revistas.uach.cl/index.php/australjvs/article/view/6896
http://revistas.uach.cl/index.php/australjvs/article/view/6896
Autor:
Katherin Asencio, José Antonio Alcalde, Mónica Gandarillas, Juan Pablo Keim, Rodrigo Echeverría
Publikováno v:
Poultry Science, Vol 102, Iss 2, Pp 102339- (2023)
ABSTRACT: The poultry industry produces most of the meat and eggs for human consumption worldwide. However, family poultry farming still plays an important role in developing countries providing high quality animal products including eggs and poultry
Externí odkaz:
https://doaj.org/article/637a7db8bdc0487f8ec4b7bdf4061b8f