Results 91 to 100 of about 193,462 (188)

Epidemiology and economic impact of Johne's disease in Irish dairy herds [PDF]

open access: yes, 2008
End of project reportThis project addressed two aspects of an emerging infectious disease of Irish cattle; the epidemiology and the economic impacts of Johne’s disease (paratuberculosis).
Mee, John F, Richardson, Esther K. B.
core  

ПРОУЧВАНЕ НА МЛЕЧНАТА ПРОДУКТИВНОСТ И ПРОДЪЛЖИТЕЛНОСТТА НА ИЗПОЛЗВАНЕ НА КРАВИ ОТ ПОРОДАТА БЪЛГАРСКО СИМЕНТАЛСКО ГОВЕДО

open access: yesЖивотновъдни науки, 2011
The aim of this study was to determinate milk productivity, productive life span, and longevity of Bulgarian simental cows with different lactation. The data of milk production and duration of lifetime productivity for 312 cows, daughters of 14 bulls ...
ПЕТЪР СТОЙКОВ   +3 more
doaj  

STUDY ON THE MILK QUALITY PARAMETERS IN THREE FARMS FROM SĂLAJ COUNTY

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Animal Science and Biotechnologies, 2016
Milk quality is influenced by many factors including rank lactation. This study aims to present the evolution of the main quality parameters of milk as the fat, protein, lactose, dry matter and the number of somatic cells for the first five lactations in
Camelia Raducu   +6 more
doaj   +1 more source

Lactation curve model by lactation number in murciano-granadina goats [PDF]

open access: yes, 2007
In this work four lactation curve models have been tested: The simple lineal regression pattern; the quadratic pattern; the Cobby and Le Du pattern; and the incomplete gamma of Wood function.
Delgado-Bermejo, J.V.   +4 more
core  

Incidences of claw lesions in Austrian dairy herds in relation to lactation number, lactation month, housing system and breed

open access: yes
Claw health of Austrian dairy herds was evaluated using data collected in the project 'Klauen- Q-Wohl' from 28,638 cattle in 526 dairy farms. We calculated the incidence of claw lesions and examined the relationships between cumulative incidence of claw lesions and lactation number, lactation month, housing type and breed.
Kofler, Johann   +7 more
openaire   +1 more source

Milk production and survival of spring-calving carryover cows in New Zealand dairy herds : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Animal Science at Massey University, Manawatu, New Zealand [PDF]

open access: yes, 2017
Non-pregnant cows are generally culled from dairy herds and replaced with two-year-old heifers. Alternatively, non-pregnant cows can be dried-off at the end of lactation, retained for one year (carried over), before being mated and returned to a milking ...
Gardner, Rachel
core  

Organic versus conventional dairy farming – studies from the Öjebyn Project [PDF]

open access: yes, 2002
This report was presented at the UK Organic Research 2002 Conference. A study (the Öjebyn Project) was conducted to determine differences between organic and conventional dairy farming systems. Comparisons of feed intake, milk production, live weight (LW)
Bystrom, Sara   +2 more
core  

Evaluation of Lactation Promotion as Part of Baby Friendly Hospital [PDF]

open access: yes, 2017
Decrease of maternal and infant mortality as well as increasing of the exclusive breastfeeding are major public health priorities in Indonesia. In decreasing the maternal and infant mortality, the government developed a program for the community as Baby ...
Handayani, L. (Lina)   +2 more
core  

155 Effect of lactation number on pregnancy losses in dairy cattle

open access: yesAnimal - science proceedings, 2023
M.A. Lammoglia   +2 more
openaire   +1 more source

Previous Lactation Risk Factors Associated with Hyperketonemia in the First Week Postpartum in Dairy Cows: A Retrospective Analysis

open access: yesDairy
Hyperketonemia (HYK) is a common disorder in high-producing dairy cows, resulting in significant economic losses. Defined by elevated beta-hydroxybutyrate (BHB; ≥1.2 mmol/L) without clinical signs, HYK is often considered a gateway disease, predisposing ...
Mahmoud H. Emam   +3 more
doaj   +1 more source

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