scholarly journals Association of lameness and mastitis with return-to-service oestrus detection in the dairy cow

2019 ◽  
Vol 185 (14) ◽  
pp. 442-442 ◽  
Author(s):  
John Remnant ◽  
Martin J Green ◽  
Jon Huxley ◽  
James Hirst-Beecham ◽  
Rhys Jones ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Dairy Cow ◽  
Population Attributable Risk ◽  
Population Level ◽  
Clinical Mastitis ◽  
Attributable Risk ◽  
Dairy Herds ◽  
Expected Time ◽  
The Impact

Oestrus detection is an important part of maintaining efficient reproductive performance in dairy herds. Both lameness and mastitis are common diseases of dairy cows that may impact oestrus detection. A set of data from 28 herds identified as having good recording of clinical mastitis and lameness incidents was used for the study. Logistic regression was used to identify associations between disease episodes within 100 days of insemination and changes in the probability of reinsemination at either 18–24 or 19–26 days after an unsuccessful insemination. Population attributable risk was calculated to understand the impact these diseases may have at a herd level. Lameness 0–28 days after the first insemination of the interval decreased the odds of a reinsemination at an appropriate time by approximately 20 per cent. Clinical mastitis 1–28 days prior to the first insemination of the interval increased the odds of reinsemination at the expected time by approximately 20 per cent. The associations were similar for either interservice interval outcome. Population attributable risk suggested that the effect of these diseases on the probability of reinsemination at the expected time at a population level would likely be extremely small.

Effect of different diet supplements in the pre- and post-partum period on reproductive performance in the dairy cow

2001 ◽  
Vol 26 (2) ◽  
pp. 313-321 ◽  
Author(s):  
N. H. Gardner ◽  
C. K. Reynolds ◽  
R.H. Phipps ◽  
A.K. Jones ◽  
D.E. Beever
Keyword(s):  
Sugar Beet ◽  
Dairy Cows ◽  
Reproductive Performance ◽  
Post Partum ◽  
Late Gestation ◽  
Diet Supplements ◽  
Group 2 ◽  
The Impact ◽  
Ration Group ◽  
Group 1

AbstractThe study compared the impact of feeding different energy supplements (barley, molassed sugar beet and fat) prior to calving and the effects of feeding supplemental fat post-partum, on subsequent production and reproductive efficiency of dairy cows. Forty-eight multiparous Holstein-Friesian dairy cows were assigned to one of two groups, six weeks prior to expected calving date and fed a grass based total mixed ration according to ME requirements for late gestation. Group 1 was supplemented with barley (B) or molassed sugar beet feed (SB) prior to calving and was then given a high starch lactation ration. Group 2 was supplemented with either fat (F) or no supplement (C) pre partum, and was then given a similar lactation ration as Group 1 but supplemented with fat. Lactation rations were fed through to week-20 post partum and the cows were monitored during this period. Milk yield (P<0.002) and milkfat (P<0.02) production were higher and milk protein concentration (P<0.001) was lower in Group 2. The number of days to first rise in progesterone following parturition was greater (P<0.01) in Group 2. Due to the design of the study, effects of prepartum supplementation were only evaluated within each lactation ration group. Conception rate to first service was higher (P<0.001) for B than SB supplemented cows in Group 1 and higher (P<0.02) for F than C supplemented cows in Group 2. Services per conception were lower (P=0.06) for B than SB supplemented cows in Group 1 and lower (P<0.05) for F than C supplemented cows in Group 2. Overall pregnancy rates and days open were not significantly different between the groups. The data shows that pre-partum nutrition had an important role in determining subsequent fertility. Despite having negative effects early post partum, supplementing with fat did not affect overall reproductive performance but it did improve milk production.

scholarly journals Clinical mastitis from calving to next conception negatively affected reproductive performance of dairy cows in Nanning, China

2012 ◽  
Vol 11 (10) ◽  
pp. 2574-2580 ◽  
Author(s):  
Li Yang Feng ◽  
Shan Li Xiao ◽  
Zhuang Yang Bing ◽  
Zhang Yu ◽  
Fang Zhang Xiu ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Clinical Mastitis

Effect of timing of first clinical mastitis occurrence on lactational and reproductive performance of Holstein dairy cows

2004 ◽  
Vol 80 (1-2) ◽  
pp. 31-45 ◽  
Author(s):  
J.E.P Santos ◽  
R.L.A Cerri ◽  
M.A Ballou ◽  
G.E Higginbotham ◽  
J.H Kirk
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Clinical Mastitis ◽  
Holstein Dairy Cows

Incidence of Clinical Mastitis and its Influence on Reproductive Performance of Dairy Cows

2017 ◽  
Vol 54 (2) ◽  
pp. 84
Author(s):  
Mahmoud Elmaghraby ◽  
Abeer ElNahas ◽  
Mohamed Fathala ◽  
Ferial Sahwan ◽  
Mohamed ELDien
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Clinical Mastitis

The economic, environmental and welfare implications of alternative systems of accommodating dairy cows during the winter months

2015 ◽  
Vol 55 (7) ◽  
pp. 838 ◽  
Author(s):  
P. French ◽  
K. O. Driscoll ◽  
B. Horan ◽  
L. Shalloo
Keyword(s):  
Body Temperature ◽  
Dairy Cows ◽  
Animal Welfare ◽  
Dairy Cow ◽  
Temperate Climate ◽  
Adult Cattle ◽  
Capital Costs ◽  
Systems Research ◽  
The Impact ◽  
Maintain Body Temperature

Pasture grazed in situ is one of the most competitive and sustainable feeding systems for dairy cows globally because of a low environmental footprint, the potential for excellent animal welfare and the relatively low cost in the production and utilisation of the feed. However, because of seasonal variation in grass production and inclement weather conditions, dairy cattle may have to be accommodated and/or fed off pasture. There are numerous infrastructural options for achieving this and the focus of the present paper was to review the research and discuss the merits of these alternate animal accommodation systems, focussing on the impact that they have on the environment, animal welfare and farm profitability relative to pasture-only systems. Research data showed that dairy cow welfare can be protected in a range of well managed alternative winter accommodation. In a temperate climate, such as that which pertains in Ireland, adequately fed adult cattle will not use extra feed energy to maintain body temperature when accommodated outdoors and exposed to the effects of wind, rain and low temperatures, as the heat produced from the digestion of feed is in excess of the requirement to maintain body temperature. The main welfare challenge of a wintering system in such conditions is to provide suitable lying facilities for cows to express normal lying behaviour and provide adequate feed. The primary economic focus of pasture-based systems should be to maximise the length of the grass-grazing season and, consequently, to minimise the period off paddock. Provided that body condition targets can be met, there will be minimal effect of wintering system on dairy cow productivity and the only economic differences will be in costs. The cost analysis should combine the capital costs of construction financed over its useful life and the annual operating costs, including labour.

scholarly journals The Impact of Mastitis on Reproductive Parameters of Dairy Cows

2019 ◽  
Vol 63 (3) ◽  
pp. 72-78
Author(s):  
F. Zigo ◽  
A. Adamová ◽  
M. Vasiľ ◽  
J. Elečko ◽  
S. Ondrašovičová ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Subclinical Mastitis ◽  
Clinical Mastitis ◽  
Reproductive Parameters ◽  
Coagulase Negative Staphylococci ◽  
Milk Samples ◽  
California Mastitis Test ◽  
Service Period ◽  
High Incidence ◽  
The Impact

Abstract The aim of this study was to evaluate the occurrence of mastitis and its impact on the reproductive parameters in a herd of 180 dairy cows. Based on the herd records 127 cows of Slovak spotted cattle and their crosses with red Holstein were selected for study between 1—2 months after calving. The examination of the health status of the mammary glands consisted of: the clinical examination of the udder, the California mastitis test (CMT) supplemented by the collection of mixed milk samples, and the laboratory examination of bacterial pathogens causing the mastitis. In addition to the mam­mary investigation, reproduction indicators such as the length of the insemination interval, the service period, the intercalving period and the insemination index were also analyzed. The results of this study indicated: a high incidence of mastitis (41.6 %), especially latent (21.2 %), subclinical (15.7 %) and clinical (4.7 %) forms were most common in the herd. The most frequently isolated bacteria from the infected milk samples were: coagulase negative staphylococci (54.1 %), S. aureus (16.9 %), Streptococcus spp. (15.0 %), A. viridans (7.5 %) and Ent. faecalis (6.4 %). According to the available literature, the optimum values of the intercalving period were 365—400 days, the insemination interval 55—80 days, the insemination index 1.2—2 and the service period 60—110 days. In comparison, our results showed increased, unsatisfactory reproductive values in the group of dairy cows with clinical mastitis. While in healthy cows as well as in groups of cows with latent and subclinical mastitis, all of the reproductive indicators were within the optimal levels.

Body condition score and reproductive performance in dairy cows in Greece

2007 ◽  
Vol 2007 ◽  
pp. 60-60
Author(s):  
G. Oikonomou ◽  
G. Arsenos ◽  
G.E. Valergakis ◽  
A. Tsiaras ◽  
G. Banos
Keyword(s):  
Dairy Cows ◽  
Body Condition ◽  
Reproductive Performance ◽  
Energy Content ◽  
Body Condition Score ◽  
Reliable Estimate ◽  
Condition Score ◽  
Body Condition Scoring ◽  
Body Energy ◽  
The Impact

Various studies in dairy cows have shown that their Body Condition Score (BCS) effectively reflects their nutritional status and energy content (Ferguson et al. 1994). Extremes in BCS and BCS losses have been identified as a risk factor for health problems and reduced reproductive efficiency (Markusfeld et al. 1997, Lopez-Gatius et al. 2003). Body condition scoring is easy and inexpensive to perform and gives a reliable estimate of body energy reserves. Hence, in practice, BCS can be used as a tool for ration formulation and management decisions concerning reproduction of dairy cows (Banos et al. 2004). The objective of this study was to determine and quantify the impact of BCS in the reproductive performance of primiparous Holstein cows.

scholarly journals Systematic clinical examination of early postpartum cows and treatment of puerperal metritis did not have any beneficial effect on subsequent reproductive performance

2008 ◽  
Vol 53 (No. 2) ◽  
pp. 59-69 ◽  
Author(s):  
R. Dolezel ◽  
M. Vecera ◽  
T. Palenik ◽  
S. Cech ◽  
M. Vyskocil
Keyword(s):  
Beneficial Effect ◽  
Dairy Cows ◽  
Clinical Examination ◽  
Reproductive Performance ◽  
Pathological Condition ◽  
Post Partum ◽  
Control Program ◽  
Severe Form ◽  
Early Postpartum ◽  
The Impact

The objective of this field trial was to evaluate the impact of a control program based on systematic clinical examination on Day 10 ± 3<I> post partum (pp)</I> and treatment in the case of puerperal metritis on reproductive performance in dairy cows. Cows having serious dystocia as well as cows treated for retained placenta were not involved in the trial. The evaluation was performed by comparing reproductive performance between systematically examined cows (Group E, <I>n</I> = 83) and cows that were examined and treated occasionally on the basis of farmers’ notifications of a pathological condition (Group C, <I>n</I> = 95). In Group E, reproductive performance was compared between cows with a mild form of metritis (Group E1, <I>n</I> = 18), cows with a severe form of metritis (Group E2, <I>n</I> = 14) and cows without puerperal metritis (Group E0, <I>n</I> = 51). Clinical examination consisted in rectal and vaginal palpation with inspection of the lochia manually withdrawn from the vagina. Cows with puerperal metritis were treated with an intramuscular administration of PGF<sub>2&alpha;</sub> analogue – dinoprost. An intrauterine antibiotic (rifaximin foam) was added in cases of severe metritis. The examination and treatment (in cases of a pathological condition, <I>n</I> = 10) were repeated in Group E on Day 24 ± 3 <I>pp</I>. In addition, the incidence of puerperal metritis in the year seasons was evaluated. Occurrence of ovarian disorders (30.1 vs. 24.2%) and clinical endometritis (27.7 vs. 23.2%), calving to first service interval (83.2 vs. 85.4 days), pregnancy until Day 100 <I>pp</I> (30.8 vs. 35.3%) as well as until Day 150 <I>pp</I> (64.6 vs. 64.7%), services per conception (2.45 vs. 2.16), calving to conception interval (141.6 vs. 136.4 days), total culling rate (20.5 vs. 28.4%) and culling rate due to (sub)infertility (8.4 vs. 6.3) in Group E compared to Group C were not different. Only the first service pregnancy rate was lower in Group E (30.3 vs. 47.1%, <I>P</I> < 0.05). Even though no significant differences were found in the reproduction parameters between groups E1, E2 and E0, the worst parameters were in Group E2. The incidence of puerperal metritis in the year seasons was not different. The trial did not prove that there was a beneficial effect of systematic clinical examination on Day 10 ± 3 <I>pp</I> nor of treatment in cases of puerperal metritis, using PGF<sub>2&alpha;</sub> and intrauterine antibiotic, on reproductive performance in dairy cows.

Effect of organic zinc and selenium on dairy cow productivity and fertility

2007 ◽  
Vol 2007 ◽  
pp. 145-145
Author(s):  
A. I. Macrae ◽  
L. Hodgson-Jones ◽  
K. Aitchison ◽  
S Burton ◽  
D. Lawson ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Dairy Cow ◽  
Trace Minerals ◽  
Selenium Yeast ◽  
Organic Zinc ◽  
Ruminant Diets ◽  
The Uk ◽  
Effect Of Feeding

Major changes have been occurring over the last 20 years in the UK dairy industry, with improvements in cow genetics and nutritional management resulting in a doubling of average milk yields to 6,750 litres/cow/year by 2004 (DEFRA, 2005). The same period has resulted in a decline of dairy cow fertility parameters with recent studies having identified a 1% fall in conception rates per annum (Royal et al., 2000). The role of organic forms of trace minerals has been examined in ruminant diets with particular regard to their role in immune function (Spears, 2000). The aim of the study was to examine the effect of feeding an organic source of zinc (Bioplex Zinc™, Alltech Inc. USA) and selenium yeast (Sel-Plex™, Alltech Inc. USA) to high yielding Holstein dairy cows on production and reproductive performance.

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