Zobrazeno 1 - 10
of 112
pro vyhledávání: '"B.J. Heins"'
Publikováno v:
JDS Communications, Vol 4, Iss 6, Pp 464-468 (2023)
Minimizing the incidence of disease on organic dairy farms is important for both economic and animal welfare purposes. The objective of this study was to estimate genetic parameters for total disease treatment costs using producer-recorded treatments
Externí odkaz:
https://doaj.org/article/fac1b25a85af4f3eb49f3128ed85b79c
Publikováno v:
JDS Communications, Vol 4, Iss 6, Pp 458-463 (2023)
The objective of this study was to compare β-casein genotype of purebred certified-organic Holstein cows, and their effect on production, fertility, and survival. Holstein cows (n = 1,982) from 13 certified-organic dairy herds from the western, midw
Externí odkaz:
https://doaj.org/article/ba161c411c84444aa5f156ffc4ba1dc4
Publikováno v:
JDS Communications, Vol 4, Iss 4, Pp 318-323 (2023)
Pasture-based dairy herds continue to grow around the world as demand increases for sustainable farming practices. Grazing dairy farmers may benefit from the utilization of precision dairy technologies because these technologies have the potential to
Externí odkaz:
https://doaj.org/article/2e193d058a3d4a919e6d03ba87bfc021
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 11, Pp 8989-9000 (2022)
ABSTRACT: The objective of this study was to compare 3-breed rotational crossbred (CB) cows of the Montbéliarde, Viking Red, and Holstein (HO) breeds with HO cows fed 2 alternative diets for dry matter intake (DMI), fat plus protein production (CFP)
Externí odkaz:
https://doaj.org/article/0d571e6f424d4e0f9e4edb1a6957fc44
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 11, Pp 9286-9295 (2022)
ABSTRACT: Holstein (HO) calves, 3-breed crossbred calves of Montbéliarde, Viking Red, and HO (MVH), and 3-breed crossbred calves of Normande, Jersey, and Viking Red (NJV) were compared for gestation length (GL), calf weight at birth (CW), calving di
Externí odkaz:
https://doaj.org/article/083d4248501f4b13beab13e9e9c9ac63
Publikováno v:
JDS Communications, Vol 3, Iss 1, Pp 49-54 (2022)
White willow bark (WWB) is commonly used in combination with other medicinal herbs and analgesics to alleviate inflammatory pain in disbudded calves under organic management, but there is no evidence to confirm an effect of WWB on inflammatory biomar
Externí odkaz:
https://doaj.org/article/2c741a01e29442cdb3d590ff9327002e
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 1, Pp 495-508 (2022)
ABSTRACT: Among other regulations, organic cows in the United States cannot receive antibiotics and preserve their organic status, emphasizing the importance of prevention of illness and benefit of high genetic merit for disease resistance. At the sa
Externí odkaz:
https://doaj.org/article/2ecca8509ad844dcb90b816a19c1a8ae
Autor:
K.T. Sharpe, B.J. Heins
Publikováno v:
JDS Communications, Vol 2, Iss 6, Pp 319-323 (2021)
The objective of the study was to investigate the growth, health, behavior, and economics of dairy calves fed organic milk replacer (n = 41) or organic whole milk (n = 40) in an automatic feeding system. Calves were fed either organic milk replacer o
Externí odkaz:
https://doaj.org/article/147f07cbd34f4a3e8b6bcf6aaa8b6e22
Publikováno v:
JDS Communications, Vol 1, Iss 2, Pp 41-44 (2020)
The objective of this study was to evaluate the taste preference of calves fed Chlorella sp. microalgae produced from dairy lagoon wastewater. Six Holstein dairy heifer calves that were 12 to 14 wk of age (107 ± 3.8 kg of body weight) were fed 0 (co
Externí odkaz:
https://doaj.org/article/123d005fb821426e9a815f9a5057039e
Publikováno v:
Animal, Vol 8, Iss , Pp 122-133 (2014)
In pasture-based seasonal calving systems, failure to become pregnant during the breeding season results in important economic losses as maximum profit is attained by minimising costs and increasing the proportion of grass in the diet of the lactatin
Externí odkaz:
https://doaj.org/article/76b98b1f39014cdf88d7756686903a86