The effect on milk composition of feeding spring grass to cows

1959 ◽  
Vol 26 (2) ◽  
pp. 173-181 ◽  
Author(s):  
R. Waite ◽  
M. E. Castle ◽  
J. N. Watson

1. An experiment to investigate the seasonal increase in the solids-not-fat content of milk, which usually occurs in Britain when cows go from winter feeding to spring grazing, is described.2. Two similar groups of cows were fed good quality winter rations at the same high level both before and after calving (about 115% of the Woodman standard after calving), until spring grass was available. One group of 7 cows was then fed for 6 weeks almost entirely on cut grass, returning to winter rations for a further 3 weeks. The control group of 6 cows continued to be fed throughout the experiment on winter rations and both groups remained indoors for the whole of the experiment. The estimated nutrient intake of both groups in all periods was kept substantially constant.3. Changes in milk yield and composition were mainly those associated with advancing stage of lactation, and grass feeding had little specific effect. It is concluded that the increase in milk protein content which is normally observed soon after the start of spring grazing probably results from an improved plane of nutrition and not specifically from an increase in the intake of soluble carbohydrates.4. Increases in the total nitrogen content of the milk as the experiment proceeded were contributed to uniformly by the casein, total albumin and β-lactoglobulin fractions.

2021 ◽  
Vol 12 ◽  
pp. 204062232110052
Author(s):  
Jeremy Chambord ◽  
Lionel Couzi ◽  
Pierre Merville ◽  
Karine Moreau ◽  
Fabien Xuereb ◽  
...  

Aims: To assess the effect of a pharmacist-led intervention, using Barrows cards method, during the first year after renal transplantation, on patient knowledge about their treatment, medication adherence and exposure to treatment in a French cohort. Methods: We conducted a before-and-after comparative study between two groups of patients: those who benefited from a complementary pharmacist-led intervention [intervention group (IG), n = 44] versus those who did not [control group (CG), n = 48]. The pharmacist-led intervention consisted of a behavioral and educational interview at the first visit (visit 1). The intervention was assessed 4 months later at the second visit (visit 2), using the following endpoints: treatment knowledge, medication adherence [proportion of days covered (PDC) by immunosuppressive therapy] and tacrolimus exposure. Results: At visit 2, IG patients achieved a significantly higher knowledge score than CG patients (83.3% versus 72.2%, p = 0.001). We did not find any differences in treatment exposure or medication adherence; however, the intervention tended to reduce the proportion of non-adherent patients with low knowledge scores. Using the PDC by immunosuppressive therapy, we identified 10 non-adherent patients (10.9%) at visit 1 and six at visit 2. Conclusions: Our intervention showed a positive effect on patient knowledge about their treatment. However, our results did not show any improvement in overall medication adherence, which was likely to be because of the initially high level of adherence in our study population. Nevertheless, the intervention appears to have improved adherence in non-adherent patients with low knowledge scores.


2020 ◽  
Vol 87 (S1) ◽  
pp. 133-137
Author(s):  
Kerstin Barth

AbstractIn this research communication I show the effect of various cow–calf contact systems on milk yield and milk composition during the periods when calves where allowed to suckle their dams and after the calves were separated in comparison to cows that were only machine milked throughout their lactation. Analyses were based on four different experiments, but conducted at the same research station and under comparable housing and feeding conditions. Nursing dams had contact to their calves during the whole day, during night-time or only twice per day shortly before milking. A control group of cows that had no contact to their offspring was part of every experiment. Data of the regular monthly milk recordings were analysed with linear mixed models. Results showed a significant effect of the suckling system on the machine milk yield over the whole lactation. While cows with night-time contact reached the milk production level of the control cows, cows with whole day or short-time contact still produced less milk after the calves were separated. Fat content was always lower during the suckling period but not afterwards. The significantly higher milk protein content in dams with calf contact requires further investigation. Somatic cell count in milk of nursing dams was slightly increased, probably due to the exposure of the teats to frequent suckling in addition to machine milkings. In conclusion, cow–calf contact systems influence the performance of cows during and after the suckling period but to varying degrees depending on the system adopted.


2011 ◽  
Vol 27 (3) ◽  
pp. 993-1000
Author(s):  
R. Djokovic ◽  
Z. Ilic ◽  
M.P. Petrovic ◽  
S. Pesev ◽  
B. Ristanovic

Milk yield and milk chemical composition are largely affected by the quality of dairy cattle diet. The chemical composition of milk is dependent upon a large number of factors, including breed, diet, care, housing system, stage of lactation, etc. Milk composition is primarily a breed-specific trait. This study was conducted over a period of 15 months, involving Serbian Spotted dairy cattle. The experimental animals were assigned to three groups, each receiving different levels of supplemental zeolite. The control group comprised cows that received no zeolite supplement. Experimental Groups I and II were fed compound feeds supplemented with 4% and 2% zeolite, respectively. Milk samples were analysed for the contents of milk fat, proteins, fat-free solids and lactose, and density. The results obtained suggest that zeolite supplementation affects milk chemical composition, depending on the zeolite level present in livestock feed.


2015 ◽  
Vol 6 (4) ◽  
pp. 97-104
Author(s):  
Arina Yurevna Malenova ◽  
Irina Gennadevna Kytkova

Research objective - studying of features of the relation to pregnancy, the child, motherhood of women in IVF situation. Selection: 100 married pregnant women aged from 28 till 42 years (the first pregnancy of the first trimester, complications in the anamnesis isn't present) representing two groups on 50 people: 1) after artificial insemination (empirical group); 2) in a situation natural pregnancy (control group). The leading motives of pregnancy, types of the attitude towards themselves, pregnancies, to the child, people around, the prevailing installations in the sphere of the family relations, features of representation of future mothers about themselves and "the ideal parent" are defined by testing. Distinctions in all respects with women from control group are found. It is established that in vitro fertilisation the high level of readiness for motherhood according to its motivational characteristics is observed. Prevalence of constructive motives of pregnancy against concern in the health and aspirations to meet social expectations is revealed. The leading types of a gestational dominant are optimum and euphoric, the hypertrophied positive emotional background of pregnancy is observed. In the future of a bike probability the dependent relations with the child, preference of the sponsoring or authoritative style of family education. Revaluation of own parental qualities when comparing with image of ideal mother is observed. Results allow to carry women to the group of risk demanding psychological maintenance before and after the childbirth.


2017 ◽  
Author(s):  
Moritz Körber ◽  
Lorenz Prasch ◽  
Klaus Bengler

Objective: It was investigated whether providing an explanation for a take-over request in automated driving influences trust in automation and acceptance.Background: Take-over requests will be recurring events in conditionally automated driving which could undermine trust as well as acceptance and, therefore, the successful introduction of automated vehicles.Method: Forty participants were equally assigned to either an experimental group provided with an explanation of the reason for a take-over request or a control group without explanations. In a simulator drive, both groups experienced three take-over scenarios that varied in the obviousness of their causation. Participants rated their acceptance before and after the drive and rated their trust before and after each take-over situation. Results: All participants rated acceptance on the same high level before and after the drive, independent of the condition. Control group’s trust ratings remained unchanged by take-over requests in all situations, but the experimental group showed decreased trust after experiencing a take-over caused by roadworks. Participants provided with explanation felt stronger that they had understood the system and the reasons for the take-overs.Conclusion: A take-over request did not lower trust or acceptance. Providing an explanation for a take-over request had no impact on trust or acceptance, but increased the perceived understanding of the system.Application: The results provide insights into users’ perception of automated vehicles, take-over situations and a fundament for future interface design for automated vehicles.


2020 ◽  
Vol 5 (1) ◽  
pp. 47-56
Author(s):  
Risa Yuspitasari ◽  
Rahmawati ◽  
Raudah Zaimah Dalimunthe

This research aimed to discover the level of anxiety in students before the exam and the effect of music classic (Mozart) to reduce such anxiety. The study was conducted at SMP Negeri 1 Ciruas with students with a high level of anxiety, which has been revealed from the results of the anxiety scale questionnaire using a purposive sampling technique with a total of 68 respondents. This research was used with an experimental method consisting of an experimental group and a control group. From the treatment, the results showed pre-test 12.55 in the high category and post-test 7.852 in the medium category. This shows changes in the results before and after the treatment is given. It can be concluded that the effect of the use of music (Mozart) can reduce student anxiety before the test.


2001 ◽  
Vol 31 (3) ◽  
pp. 459-467 ◽  
Author(s):  
J. SCOTT ◽  
A. GARLAND ◽  
S. MOORHEAD

Background. The efficacy and effectiveness of cognitive therapy (CT) is well established for unipolar disorders, but little is known about its utility in bipolar disorders. This study aimed to explore the feasibility and efficacy of using CT as an adjunct to usual psychiatric treatment in this patient population.Method. Subjects referred by general adult psychiatrists were assessed by and independent rater and then randomly allocated to immediate CT (N=21) or 6-month waiting-list control, which was then followed by CT (N=21). Observer and self-ratings of symptoms and functioning were undertaken immediately prior to CT, after a 6-month course of CT and a further 6-months later. Data on relapse and hospitalization rates in the 18 months before and after commencing CT were also collected.Results. At 6-month follow-up, subjects allocated to CT showed statistically significantly greater improvements in symptoms and functioning as measured on the Beck Depression Inventory, the Internal State Scale, and the Global Assessment of Functioning than those in the waiting-list control group. In the 29 patients who eventually received CT, relapse rates in the 18 months after commencing CT showed a 60% reduction in comparison with the 18 months prior to commencing CT. Seventy per cent of subjects who commenced therapy viewed CT as highly acceptable.Conclusion. Although the results of this study are encouraging, the use of CT in subjects with bipolar disorders is more complex than in unipolar disorders and requires a high level of therapist expertise. The therapy may prove to be particularly useful in the treatment of bipolar depression.


Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2298
Author(s):  
Kamila Puppel ◽  
Patrycja Staniszewska ◽  
Marcin Gołębiewski ◽  
Jan Slósarz ◽  
Grzegorz Grodkowski ◽  
...  

A negative energy balance alters the concentration of various fractions of cows’ milk. Therefore, by analyzing the concentration of individual proteins in milk, it is possible to indirectly monitor the health of the animal. The aim of the present study was to identify the relationship between the concentrations of blood β-hydroxybutyric acid (BHBA) and whey proteins in milk as a marker for the diagnosis of metabolic diseases. The analysis included milk and blood samples from 95 Holstein-Friesian cows, which were divided into three groups that were differentiated in terms of serum BHBA levels 5–7 days post-calving: LBHBA, low level of BHBA: 0.200–0.500 mmol/L; NBHBA, optimal level of BHBA- control group: 0.500–1.200 mmol/L; HBHBA, high level of BHBA: >1.200 mmol/L. Concentrations of α-lactoalbumin in the milk after 7 days of lactation proceeded in accordance with the concentration of β-hydroxybutyric acid, as follows: LBHBA > NBHBA > HBHBA. Concentrations of β-lactoglobulin in milk after 14 days of lactation proceeded in accordance with the concentration of β-hydroxybutyric acid, as follows: LBHBA < NBHBA < HBHBA. Therefore, it can be concluded that whey proteins can be used as non-invasive markers for diagnosing metabolic diseases. A high concentration of β-lactoglobulin can be a marker for diagnosing ketosis. Conversely, elevated levels of α-lactalbumin may indicate the occurrence of a metabolic disorder, such as acidosis.


2021 ◽  
Vol 4 (1) ◽  
pp. 42-57
Author(s):  
Nida Gul ◽  
Hina Noor ◽  
Farkhunda Rasheed Chaudhary

The notion of using technology for learning is not new. However, the high level of digital exclusion of individuals with intellectual disabilities is well-documented. The purpose of this paper was to investigate the effect of two different pedagogies for students with intellectual disability (ID). The main objective was the comparison of assistive technology and the traditional teaching method for improving Urdu vocabulary. Using a quasi-experimental design, 8 ID students of 10 to 15 yearsof age were selected and divided into control and experimental groups. Their performance was measured before and after a six-week intervention program. The results showed that mobile-based technology improved the experimental group’s performance as compared to the control group. The technology had a positive impact on the learning of Urdu vocabulary by students with ID. The findings suggest that learning the Urdu language through game-based software/programs/utilities can improve students’ learning in the classroom. Teachers can use mobile phone as a learning tool to enhance their learning goals.


2021 ◽  
pp. 096032712110255
Author(s):  
HC Nwankwo ◽  
AA Idowu ◽  
A Muhammad ◽  
AD Waziri ◽  
YS Abubakar ◽  
...  

Sickle cell disease (SCD) treatment and management remain a challenging puzzle especially among developing Nations. Chrysin’s sickling-suppressive properties in human sickle (SS) erythrocytes in addition to its effect on AA-genotype erythrocytes were evaluated. Sickling was induced (76%) with 2% sodium metabisulphite at 3 h. Chrysin prevented (81.19%) the sickling and reversed same (84.63%) with strong IC50s (0.0257 µM and 0.00275 µM, respectively). The levels of oxygenated haemoglobin in the two groups (before and after induction approaches) were similar but significantly (P < 0.05) higher than that of SS erythrocytes (the ‘induced’ control), with chrysin-treated AA-genotype showing no effects relative to the untreated. The level of deoxygenated haemoglobin in the ‘induced’ control group was significantly (P < 0.05) higher than those of the chrysin-treated SS erythrocytes. Normal and chrysin-untreated erythrocytes (AA-untreated) were significantly more resistant to osmotic fragility than the SS-untreated. However, treatment with chrysin significantly reduced the osmotic fragility of the cells relative to the untreated cells. Furthermore, chrysin treatment significantly lowers the high level of 2,3-diphosphoglycerate (2,3-DPG) observed in the sickle erythrocytes, with no effects on AA-genotype erythrocytes. Based on functional chemistry, chrysin treatment alters the functional groups in favour of its antisickling effects judging from the observed bends and shifts. From metabolomics analysis, it was observed that chrysin treatment favors fatty acid alkyl monoesters (FAMEs) production with concomitant shutting down-effects on selenocompound metabolism. Thus, sickling-suppressive effects of chrysin could potentially be associated with modulation of oxygenated and deoxygenated haemglobin via alteration of human sickle erythrocyte’s functional chemistry and metabolic pathways implicated in SCD crisis.


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