A Research Note on Biotechnological Preparations for Enhancing the Quality of Domestic Fish Mixed Feed

2015 ◽  
pp. 305-310
Keyword(s):  
Research Note ◽  
Mixed Feed

Research Note: Women's Experience of the Mother Role

1993 ◽  
Vol 41 (2) ◽  
pp. 347-360 ◽  
Author(s):  
Pat O'Connor
Keyword(s):  
Medical Records ◽  
Rating Scales ◽  
Empirical Work ◽  
Research Note ◽  
Small Scale ◽  
Intensive Study ◽  
Lower Middle Class ◽  
Women's Experience ◽  
Mother Role

Despite the feminist critique of the assumptions implicit in the ideology of motherhood, relatively little empirical work has been done on women's own experience of this role. This research note uses data from a small scale intensive study of 51 married or cohabiting mothers aged 20–42 years old, whose oldest child was 15 years old, and who were randomly selected from medical records in a lower middle class area of North London. Building on Boulton's (1983) conceptualization, it differentiates between three aspects of this role (namely their commitment to it; its perceived identity enhancing/ destructive character and the positive/negative quality of their interaction with their children). These women's experience of the mother role was then assessed on these dimensions – using rating scales and anchoring examples (which are illustrated here). This research note suggests that even within this relatively homogenous lower middle/upper working class sample, the experience of motherhood was extremely varied: with less than half of the sample experiencing it positively at all three levels. An attempt is made to explain this variation.

scholarly journals Seasonal content of heavy metals in the "soil–feed–milk–manure" system in horse husbandry in Kazakhstan

2021 ◽  
pp. 2947-2956
Author(s):  
Nazym Kozhanova ◽  
Nurzhan Sarsembayeva ◽  
Bozena Lozowicka ◽  
Zhassulan Kozhanov
Keyword(s):  
Heavy Metals ◽  
Adverse Effects ◽  
Soil Samples ◽  
Mixed Feed ◽  
Animal Products ◽  
Limit Values ◽  
Horse Manure ◽  
Environmentally Safe ◽  
Living Organisms

Background and Aim: The quality of food, especially animal-based food, is crucial for human health. However, the quality of milk and other animal products has become an acute cause for concern in Kazakhstan . Technogenic dispersion of heavy metals (HMs) causes adverse effects on living organisms and creates unfavorable conditions for the existence of humans, animals, and plants. The purpose of this study was to analyze the content of several HMs in samples of soil, horse feed (hay, mixed feed, and bran), mare's milk, and manure to assess bioaccumulation and possible adverse effects on the bodies of horses. An additional purpose was to identify areas with acceptable conditions for obtaining environmentally safe horse breeding products in the agricultural zones of the Almaty region, Kazakhstan. Materials and Methods: Samples were obtained from two farms in the Almaty region in 2020 (spring, summer, and autumn). In total, 72 soil samples were analyzed, which were taken from the upper humus horizon to the depth of the arable layer. Eighty-six samples were taken from the feed of horses. Green feed was represented by perennial and annual grasses (alsike clover, Medicago sativa, sweet yellow clover, as well as pea and oat mix). Barley and wheat bran stored in the warehouses of the farm were sampled for the research as feed supplements. The mixed feed comprised components such as maize and sunflower. In addition, 46 samples of mare's milk and 28 samples of horse manure were collected. The HM analysis was performed in the laboratory of the Kazakh-Japanese Innovation Center. The residual amounts of HMs were determined using an absorption spectrometer with a voltammetric analyzer. The content of cadmium (Cd), lead (Pb), mercury (Hg), and arsenic (As) in all the studied samples of soil, feed, mare's milk, and manure did not exceed the threshold limit values (TLVs), suggesting that the intake of these toxic elements into the human body with food was low. Results: The average Cd concentration was in the range of 0.29-0.31 mg/kg in soil samples and in the range of 0.20-0.27 mg/kg in feed samples. In milk, the Cd concentration varied from 0.01 to 0.02 mg/L and was lower in summer and higher in fall. The total average Cd content in horse manure was 0.1844 mg/kg. The concentration of Pb in soil samples ranged from 1.09 to 1.30 mg/kg with the lowest value in spring and the highest in fall. In the feed, the concentration of Pb varied from 0.14 to 0.76 mg/kg and in milk from 0.03 to 0.15 mg/L. The average concentrations of Hg and As in soil samples averaged 0.022 and 0.019 mg/kg, respectively, and were within the TLVs. Conclusion: In the study areas, the calculated transition rates in the soil–feed–milk–manure system revealed that the greatest transition of HMs was observed for Pb and Cd, and a smaller migration was observed for Hg and As. The tendency of accumulation of trace elements continued in the feed.

Influence of diet on the productivity and characteristics of goat milk

2016 ◽  
Author(s):  
Nadiia Zazharska ◽  
Olexandra Boyko ◽  
Viktor Brygadyrenko
Keyword(s):  
Protein Content ◽  
Freezing Point ◽  
Goat Milk ◽  
Maximum Difference ◽  
Goat Breed ◽  
Mixed Feed ◽  
Quality Of Milk ◽  
Milk Solids ◽  
The Relationship

The relationship between the quality of milk of different breeds of goat and their diets was assessed. Anglo-Nubian, German White and Alpine goats were used in the experiment, with 7 goats representing each breed. The influence of two diets viz., a routine diet (hay and concentrates) and a diet improved by introduction of granulated alfalfa hay, cabbage and carrots, as well as mixed feed on productivity and characteristics of goat milk were investigated. Goats were machine milked twice daily and the quantity as well as quality of milk were assessed. Results indicated that the milk yield of the Alpine goats increased 3 times; and that of the German White goats increased more than 2.5 times when fed improved diet. Feeding improved diet resulted in significant increase in fat content of milk irrespective of the goat breed. A significant increase in the protein, lactose, and consequentially the, dry non-fat milk solids was observed in Anglo-Nubian and German White goats when fed the improved diet. However, when compared to German White and Alpine goats, highest fat, protein and lactose contents were recorded in milk of Anglo-Nubian goats both on routine and improved diet. The maximum difference in biochemical parameters of milk upon changing the diet was also found in Anglo-Nubian goats. Further, the freezing point and electrical conductivity of the milk decreased irrespective of the breed when goats were fed improved diet. An inverse relationship was found between the protein content in the goats’ milk and the freezing point: with increase in the protein content, the freezing point was reduced.

scholarly journals Research Note: Stream water quality of a Community-Based Forest Management (CBFM)-protected watershed in Baybay, Leyte, Philippines

2008 ◽  
pp. 137-146
Author(s):  
Arturo Pasa
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Forest Management ◽  
Stream Water ◽  
Research Note ◽  
Total Hardness ◽  
Stream Water Quality ◽  
Community Based ◽  
Low Concentrations

The study assessed the quality of stream water of the watershed within the Community-Based Forest Management (CBFM) Project in Cienda, Gabas, Baybay, Leyte, Philippines. Results showed that, on the average, streamflow velocity was 0.30m/sec, streamflow volume 0.32m3/sec, turbidity 2.96 ntu and the associated sediments 16.0 mg/ L. Odor and taste were unobjectionable. pH ranged from 7.50 to 7.0 while total hardness from 7.84 to 15.16 mg/L. The average nitrite (NO2) content was 11.115mg/L while nitrate (NO3) was 1.05 mg/L. The concentration of nutrients was also very low. Phosphorous (P) ranged only from 2.20 to 4.46 mg/kg or parts per million (ppm) while potassium (K) ranged from 3.71 to 3.90 ppm. Sodium (Na), calcium (Ca), and magnesium (Mg) concentrations were also very low. Heavy metals were detected but also at low concentrations.

scholarly journals Examining the effects of adding boric acid at different doses into mixed feed on fattening performance, carcass characteristics, and bone quality of Japanese quails

2020 ◽  
Vol 13 (1) ◽  
pp. 001-009
Author(s):  
Ulku Gulcihan Simsek ◽  
Sultan Aslan ◽  
Nurgul Birben ◽  
Burak Altundal
Keyword(s):  
Boric Acid ◽  
Live Weight ◽  
Feed Consumption ◽  
Utilization Rate ◽  
Control Group ◽  
Mixed Feed ◽  
Fattening Performance ◽  
Bone Properties ◽  
Different Doses

The aim of this study is to investigate the effects of adding different doses of boric acid (H3BO3) to the mixed feed of Japanese quail (Coturnix coturnix Japonica) on fattening performance, carcass and bone properties. For this purpose, a total of 96 quails aged 15 days were balanced according to their live weight and sex, and 4 trials were randomly divided into groups. Each group is composed of 4 repetitions. Trial groups; the control group (C) given mixed feed, the group with 100 mg / kg boric acid (BA) added to the feed BA100; 300 mg / kg boric acid was added to the feed group BA300 and 500 mg / kg boric acid added to the feed group BA500. Data for the fattening period were followed for 15-43 days. At the end of the experiment, carcass and bone characteristics of 8 quails (two quails from each repeat) from each group were examined. The live weight and live weight gain of the quail was similar among the experimental groups (P>0.05). Adding boric acid to feed did not affect feed consumption and feed utilization rate (P>0.05). While the breast rate decreased significantly due to the increasing levels of boric acid addition (P<0.01), an increase in the back and neck ratio was detected (P <0.05). The highest thigh ratio was found in BA300 and BA500 groups (P<0.05). Carcass yield, wing and liver rates were similar between the groups (P>0.05). Tibia and femur weights and dimensions were not affected by the addition of boric acid (P>0.05). The highest femoral ash level was determined in the BA300 group (P=0.05). The tibia ash level increased from the Control group towards BA300 and was the lowest in the BA500 group (P<0.05). As a result, while the addition of boric acid to the feed cannot be affected to the fattening performance of quail, its effect on carcass and bone properties has been found significant.

Poultry farming: current questions and answers

2020 ◽  
Author(s):  
Tamara Okolelova ◽  
Syergyey YEngashyev ◽  
Ivan Yegorov
Keyword(s):  
Biologically Active Substances ◽  
Biologically Active ◽  
Mixed Feed ◽  
Nutritional Factors ◽  
Enzyme Preparations ◽  
Questions And Answers ◽  
Active Substances ◽  
Poultry Farming

In the book in the form of questions and answers considerable attention is paid to data on the needs of all types of poultry in nutritional, mineral and biologically active substances, taking into account age of poultry. The characteristic of the main feed products is given, and the rational norms for including them in mixed feed for poultry are indicated. The role of vitamins, macro- and microelements, enzyme preparations, probiotics, prebiotics, antibiotics, organic acids, antioxidants, emulsifiers and other sources of biologically active substances in poultry nutrition is shown. Both nutritional factors that reduce the immune system and the causes of major feed diseases, which are related to the quality of feed, with violations in the rationing of nutrients and minerals, are indicated, and also biologically active substances, technologies for feeding and keeping poultry, methods of their prevention are given. It is addressed to specialists and managers of poultry farms, feed industry enterprises, researchers, postgraduates and students.

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