Steroid estrogens and estrogenic activity are ubiquitous in dairy farm watersheds regardless of effluent management practices

The aim of this research was to observe the effect of heat stress on milk yield and milk compositions of Holstein Friesian crossbred (HF) dairy cows. To fulfill the objectives, a total of 9 Holstein Friesian crossbred cows were selected for this study. Green grasses (German, Para) were supplied adlibitum and concentrate feeds (mixture of wheat bran, rice polish, mustard oil cake, di-calcium phosphate and salt) were supplied at the rate of 2.0 kg/day/cow. Management practices for all the cows were similar following the BAU Dairy farm practices. Data were collected on milk yield (l/h/d), relative humidity (%) and barn temperature (0C). The obtained temperature humidity index (THI) of July, August, September and October were 84.95, 81.99, 81.40 and 79.57, respectively. The highest THI was found in July which indicated higher heat stress during this month. A significant difference (p<0.05) in milk yield of cows was found among different months of July to October. The highest milk yield (6.10±0.50 l/h/d) was found in October among observed months. The compositions of milk such as total solids (TS), solids-not-fat (SNF), fat, protein, lactose, and ash also differed significantly (p<0.01). The highest values (%) of TS, SNF, fat, protein, lactose and ash content of milk were found in October as 12.63, 8.80, 3.83, 3.69, 4.39 and 0.72, respectively and lowest values (%) were in July as 12.20, 8.50, 3.71, 3.50, 4.30 and 0.69, respectively due to the high THI value. From these results, it is concluded that heat stress has strong effect on milk yield and milk composition of HF cows in Bangladesh. Management strategies are needed to minimize heat stress and attain optimal dairy animal performance.Asian J. Med. Biol. Res. June 2016, 2(2): 190-195

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Study about Participation of Women in Dairy Farm Management Practices in Krishna District of Andhra Pradesh, India

10.9734/bpi/ctas/v2/2633e ◽

2021 ◽

pp. 1-7

Author(s):

A. Anitha

Keyword(s):

Andhra Pradesh ◽

Management Practices ◽

Dairy Farm ◽

Farm Management ◽

Participation Of Women

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Environmental impacts of livestock production

BSAP Occasional Publication ◽

10.1017/s1463981500040930 ◽

2001 ◽

Vol 28 ◽

pp. 13-22 ◽

Cited By ~ 4

Author(s):

T. R. Cumby ◽

V. R. Phillips

Keyword(s):

Water Pollution ◽

Environmental Impacts ◽

Environmental Effects ◽

Management Practices ◽

Dairy Farm ◽

Integrated Approach ◽

Livestock Production ◽

Continuous Treatment ◽

Good Management ◽

Dirty Water

AbstractLivestock production under Northern European conditions can affect water, air and soil. Examples of the possible environmental effects on water are fish kills or microbial contamination, if solid manure, slurry, “dirty water” or silage effluent are collected, stored, handled or spread inappropriately. Examples of the possible environmental effects on air are emissions of ammonia (which can lead to acidification and, after subsequent deposition, to eutrophication), the greenhouse gases methane and nitrous oxide, odours and particulates.In the case of water pollution, good management practices using existing technology are usually adequate for preventing most environmental impacts. This often requires storage during periods when conditions are unsuitable for spreading, followed by carefully controlled application. However, for relatively dilute effluents (such as dairy farm “dirty water”), it may be more cost-effective to use different approaches, such as waste minimisation and/or continuous treatment and land spreading. Recent research results are reviewed and compared in this paper, to identify ways in which farmers can prevent water pollution at least cost. The potential implications of such measures on further reductions in the annual numbers of pollution incidents are discussed in conjunction with the impacts of different regulatory and punitive approaches.In the case of preventing air pollution, although good management can achieve much, there is a need for new technology to back it up. Existing ammonia abatement techniques are mostly expensive and farmer-unfriendly. In the longer term, changes to the animals' diet should hold the greater potential for abatement, not only of ammonia emissions but also of methane emissions. Reducing one form of pollution can often increase another, so an integrated approach to solving pollution problems is necessary.

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Pasture persistence: how much is it worth?

NZGA: Research and Practice Series ◽

10.33584/rps.15.2011.3213 ◽

2011 ◽

Vol 15 ◽

pp. 3-6

Author(s):

R. Brazendale ◽

J.R. Bryant ◽

M.G. Lambert ◽

C.W. Holmes ◽

T.J. Fraser

Keyword(s):

Dry Matter ◽

Management Practices ◽

Dairy Farm ◽

Dairy Farms ◽

System Model ◽

Dry Matter Yield ◽

Farm Profitability ◽

Farm System ◽

The Impact ◽

Different Levels

The farm system model, Farmax Dairy Pro, was used to evaluate the impact of new pastures on dairy farm profitability, assuming a range of pasture yields and qualities, and different levels of persistence in the new pastures, which were established on 10% of the farm annually. Scenarios were tested for Waikato, Taranaki, Canterbury and Southland dairy farm systems. Assuming a $6.50/kg MS milk payment and a response to pasture renewal of 10% in dry matter yield and a 0.6 MJ ME/kg DM increase in quality, increasing persistence from 4 years up to 8 years was modelled to increase dairy farm profitability by $271/ha to $478/ha. Management practices, including selections of cultivars and endophytes, that improve pasture persistence are likely to increase dairy farm profitability. Keywords: dairy farms, modelling, pasture renewal, persistence

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Satisfaction among dairy farm owners after certification on good management practices

Revista Facultad Nacional de Agronomía Medellín ◽

10.15446/rfnam.v71n3.70287 ◽

2018 ◽

Vol 71 (3) ◽

pp. 8623-8630

Author(s):

Brayian Cuartas-Martínez ◽

Dursun Barrios ◽

Mario Fernando Cerón Muñoz

Keyword(s):

Management Practices ◽

Dairy Farm ◽

Good Management ◽

Buenas Prácticas

La adopción de buenas prácticas ganaderas (BPG) en producción de leche implica cambios generadores de satisfacción al personal involucrado en el proceso productivo. Con el objetivo de evidenciar la satisfacción de productores certificados, se encuestaron 37 propietarios de predioslecheros del norte antioqueño, los datos fueron analizados mediante análisis factorial y ecuaciones estructurales. La variable “satisfacción general” se analizó mediante partición recursiva y árboles de regresión. Los productores están satisfechos con la certificación principalmente con los cambios en las condiciones laborales, las interrelaciones y la capacitación del personal. Las BPG satisfacen a los propietarios de sistemas lecheros, al generar cambios en las condiciones laborales del personal, propiciar capacitación permanente y mejorar su imagen ante productores y empresas compradorasde leche.

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Managing High Grade Dairy Cows in the Tropics

10.1071/9780643107892 ◽

2012 ◽

Cited By ~ 4

Author(s):

John Moran

Keyword(s):

Dairy Cows ◽

Management Practices ◽

Dairy Farm ◽

Poor Performance ◽

Dairy Farms ◽

High Grade ◽

Stressful Environment ◽

Dairy Consumption ◽

The Tropics ◽

Small Holder

Dairy consumption in Asia has more than doubled over the last 25 years, and has led to more than 50% of the world’s total dairy imports now entering Asian markets. Consequently, Asian countries are seeking to improve their self-sufficiency in dairy produce by developing their local milk industries. Asian livestock importers are looking for increasing numbers of high grade dairy stock from established dairy industries in countries such as Australia and New Zealand. Unfortunately, a major problem encountered throughout Asia has been the poor performance of these exotic high grade dairy heifers when exported from their country of origin to a new, more stressful environment. This has been due to a failure to prepare for their introduction. Exotic dairy cows, particularly those from farms with high levels of herd performance, have high management requirements. If subjected to local and traditional small holder dairy farm practices, they are unlikely to produce acceptable yields of milk or may not even get back into calf. Poor management practices can lead to low growth rates, delayed breeding, stock diseases and even deaths among imported stock both before and after first calving. Managing High Grade Dairy Cows in the Tropics addresses the entire range of management practices found on tropical small holder dairy farms, highlighting those which are likely to adversely impact on heifer and cow performance, hence farm profitability. It is a companion volume to three other manuals written by John Moran: Rearing Young Stock on Tropical Dairy Farms in Asia, Tropical Dairy Farming and Business Management for Tropical Dairy Farmers.

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The role of riparian buffer management in reducing off-site impacts from grazed dairy systems

Renewable Agriculture and Food Systems ◽

10.1017/s1742170511000548 ◽

2012 ◽

Vol 28 (1) ◽

pp. 1-16 ◽

Cited By ~ 11

Author(s):

Sharon R. Aarons ◽

Cameron J. P. Gourley

Keyword(s):

Management Practices ◽

Buffer Management ◽

Dairy Farm ◽

Integrated Approach ◽

Future Research ◽

Riparian Areas ◽

Buffer Zones ◽

Riparian Management ◽

Zone Management ◽

Dairy Systems

AbstractAgriculture in general and intensive animal production in particular can degrade the environment, especially as a consequence of the overuse of nutrients. Intensively grazed dairy systems, defined by the presence of foraging animals in the landscape, are often considered a more benign approach to dairy production with perceived smaller impacts due to the reduced requirement for manure disposal. However, grazing dairy cows contribute nutrients and pathogens in excreta, and sediment through landscape deformation. These impacts can dramatically increase in parts of the farm such as feeding, watering and sacrifice areas, laneways and night paddocks where animals are concentrated and spend a disproportionate amount of time. Other practices such as the disposal of dairy shed or dairy factory effluent and cultivation of fodder crops can also pollute the environment. A common approach to reduce nutrient, pathogen and sediment losses from dairy farms is to establish buffer zones in riparian areas that act as an interface between upland land use and waterways. This is generally done by fencing riparian areas to exclude stock and revegetating with understory and overstory species, with the aim of increasing infiltration, trapping sediment and decreasing contaminant losses from upland pastures. However, poorly designed and managed riparian areas may themselves contribute to further environmental degradation. Rarely is an integrated approach, including factors such as animal behavior and dairy farm management practices, as well as an analysis of landscape and riparian hydrology used in developing riparian management recommendations for individual farms. This paper reviews the threats posed by intensively grazed dairy systems, approaches to improve riparian zone management and recommends future research needs.

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