نتایج جستجو برای: crossbred dairy cow

تعداد نتایج: 58822  

2013
A. Sharma P. Kumar M. Singh N.K. Vasishta R. Jaswal

This report describes a rare case of conjoined female twin monster (Monocephalus Thoracopagus Tetrabrachius Tetrapus Dicaudatus) in a Holstein Friesian pluriparous crossbred cow.

Journal: :Frontiers in animal science 2023

Dairy cattle production is an integral part of smallholder farming systems in the central highlands Ethiopia, but it characterized by low milk productivity mainly due to nutritional constraints. This study assessed comparative advantage using improved forage-based feeding system over traditional practices on feed intake, yield and quality, cost benefit analysis crossbred dairy cows under farmer...

Journal: :اقتصاد و توسعه کشاورزی 0
محمد بخشوده سیدعباس سیدصالحی مهدی محبی فانی

the objective of this study was to determine the optimum replacement strategy using dynamic programming for dairy herds in fars province. a dairy cow is kept several lactations for milk production in the herd. after spending several lactations, milk production gradually begins to decline, while animal health problems rises simultaneously. so one of the most important management decisions of dai...

Journal: :iranian journal of veterinary research 2009
g. r. mohammadi a. sedighi

this study was designed to determine the culling rates of 23 holstein dairy herds (with an average size of180 cows per herd) in neyshabur area in northeastern iran over a period of three years from 2001 to 2003.the average annual culling rate was 13.1%, (98.5% involuntary and 1.5% voluntary). of the total disposals(1612 cows), 53.48% were culled by the end of five years of age. poor fertility w...

2011
W. A. J. J. Wiegerinck Arunas Setkus Vincas Buda Anna-Karin Borg-Karlson Raimondas Mozuraitis A. de Gee

The BOVINOSE project (www.bovinose.eu) aims to develop an “electronic nose” to detect estrus in a dairy cow, and thus to determine the optimal timing of artificial insemination. The physical principle is based on detection of sex pheromones that are secreted by the cow, exclusively during estrus. These pheromones are the natural olfactory signal for the bull that the cow is in heat. This techno...

H. Naeeimipour M. Golsheykhi S. Alitaneh,

The final goal of all dairy cow raising systems in the world is to use the available capacities and the cooperation of other sectors in order to solve the problems and issues, such as the limitations in time, man power and financial resources, for providing a complete answer. Therefore, the need for optimization of cow raising systems by prioritization of measures and plans is the most obvious ...

2017
Elehazara Rubio-Martín Eva García-Escobar Maria-Soledad Ruiz de Adana Fuensanta Lima-Rubio Laura Peláez Angel-María Caracuel Francisco-Javier Bermúdez-Silva Federico Soriguer Gemma Rojo-Martínez Gabriel Olveira

The satiating effects of cow dairy have been thoroughly investigated; however, the effects of goat dairy on appetite have not been reported so far. Our study investigates the satiating effect of two breakfasts based on goat or cow dairy and their association with appetite related hormones and metabolic profile. Healthy adults consumed two breakfasts based on goat (G-Breakfast) or cow (C-Breakfa...

Journal: :iranian journal of veterinary medicine 2015
tayebeh mahmoodi afsah mehdi vojgani faramarz gharagozlou vahid akbarinejad

background:mastitis is the most economically importantdisease in dairy industry worldwide. bulk tank milk (btm)analysis has been suggested for monitoring the udder healthstatus at herd level. objectives: a cross-sectional study wasconducted to evaluate udder health status in 15 holstein dairyfarms located in qom province. methods: bulk tank somaticcell count (btmscc) was analyzed using opto-flu...

Journal: :Journal of dairy science 2008
C S McConnel J E Lombard B A Wagner F B Garry

Dairy cow mortality is an increasingly severe problem for the US dairy industry. The objective of this study was to examine a variety of herd management practices and herd characteristics to identify factors associated with increased cow mortality in US dairy herds. The National Animal Health Monitoring System's Dairy 2002 study surveyed dairy operations in 21 major dairy states. The complete d...

Journal: :BMC veterinary research 2016
Ye Lin Xiaoxu Sun Xiaoming Hou Bo Qu Xuejun Gao Qingzhang Li

BACKGROUND Lactose, as the primary osmotic component in milk, is the major determinant of milk volume. Glucose is the primary precursor of lactose. However, the effect of glucose on lactose synthesis in dairy cow mammary glands and the mechanism governing this process are poorly understood. RESULTS Here we showed that glucose has the ability to induce lactose synthesis in dairy cow mammary ep...

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