scholarly journals Asymmetric time interval between evening and morning milking and its effect on the total daily milk yield

2011 ◽  
Vol 59 (3) ◽  
pp. 73-80 ◽  
Author(s):  
Gustav Chládek ◽  
Oto Hanuš ◽  
Daniel Falta ◽  
Radoslava Jedelská ◽  
Aleš Dufek ◽  
...  
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Correlation Coefficients ◽  
Time Interval ◽  
Regression Equations ◽  
Cell Counts ◽  
Total Milk ◽  
Daily Milk Production ◽  
Morning Milk ◽  
Daily Milk

Samples of milk obtained in the course of evening and morning milking performed in variable time intervals of either 11 and 13 hours (n = 1.282) or 10 and 14 hours (n = 370) were collected with the aim to quantify the effect of the length of a variable (asymmetric) time interval between evening and morning milking on the total amount and composition of daily milk production of dairy cows. Milk samples were analysed in an accredited (EN ISO 17025) laboratory in Brno-Tuřany (Czech Republic) and the following contents of individual milk components were estimated: fat (F; g.100g−1), total protein (TP; g.100g−1), lactose (L; lactose monohydrate; g.100g−1), and somatic cell counts (SCC; ­103.ml−1) were estimated in. It was found out that with the increasing total daily milk production the shares of evening and morning milk yield increased as well; however, the percentages of evening and/or morning yields in the total yield remained practically unchanged and represented 43.5 % and 56.5% or 40.4 % and 59.6 % in variants with intervals of 11 and 13 hours and/or 10 and 14 hours, respectively. In the variant with the milking interval of 11 and 13 hours, values of correlation coefficients between the above parameters (i.e. F, TP, L, SCC, and log SCC) of evening and morning milk yields on the one hand and the total milk performance on the other ranged from the minimum r = 0.896 (F) to the maximum r = 0.980 (TP). In the variant with the interval of 10 and 14 hours, the corresponding values of correlation coefficients were r = 0.848 (F) and r = 0.983 (TP). These correlations were statistically highly significant in all cases (P ≤ 0.001). Further, linear regression equations enabling the estimation of milk parameters of the total milk yield on the base of results obtained in evening and morning milking was calculated as well. Values of coefficients of determination (R2) of these equations ranged from 0.803 (F) to 0.960 (TP) and from 0.718 (F) to 0.966 (TP) for intervals of 11:13 hours and of 10:14 hours, respectively.

scholarly journals Characterization of buffalo milk production system in Bangladesh

2016 ◽  
Vol 45 (1) ◽  
pp. 69-77 ◽  
Author(s):  
MK Uddin ◽  
AA Mintoo ◽  
TM Awal ◽  
M Kondo ◽  
AKMA Kabir
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Buffalo Milk ◽  
Gestation Period ◽  
Survey Study ◽  
Calving Interval ◽  
Lactation Length ◽  
Total Milk ◽  
Daily Milk Production ◽  
Daily Milk

This survey study was conducted in Tangail, Jamalpur, Bogra, Sirajganj, Pabna and Thakurgaon districts for household farming, and in Bhola, Noakhali, Lakshmipur and Patuakhali districts for bathan farming to undertake an assessment on the management factors in household and bathan farming for identifying the potentiality and constraints in milk production from buffalo. A 90 number of pre-designed questionnaire was used for data collection by direct interviewing of buffalo farmers. From this study, it was revealed that 82% of the farmers have 1 to 3 buffalo per household and 73% of the farmers have 51 to 200 buffalo per bathan. Buffaloes were raised in homestead and approximately 5-7 hours were grazes per day in household farming. Small quantity of concentrate feeds were offered to buffalo by the rich farmers during dry season. On the other hand, in bathan, farmers were fully depended to feed the buffalo on grazing at public land. In household, the average daily milk production was 3 to 8 liters and total milk yield was 799 liters in a lactation length of 270 days. In bathan, the average daily milk production was 1 to 2 liters and total milk yield was 435 liters in a lactation length of 215 days. The average age of first calving, service per conception, gestation period and calving interval were 39 months, 1.9 numbers, 310 days and 490 days, respectively in household farming. The average age of first calving, service per conception, gestation period and calving interval were 40 months, 2.1 numbers, 315 days and 530 days, respectively in bathan farming; however, further study is required on the buffalo nutrition in the bathan farming.Bang. J. Anim. Sci. 2016. 45 (1):69-77

scholarly journals Role of sex chromatin on performance in the local (black) goats

2016 ◽  
Vol 10 (1) ◽  
pp. 53-57
Author(s):  
Salim Omar Raoof ◽  
Sirod Sami Yahya ◽  
Dlpak Birkhader ◽  
Younis Ahmad SheakhMohamad
Keyword(s):  
Milk Production ◽  
Correlation Coefficients ◽  
Fertility Rate ◽  
Lactation Period ◽  
Sex Chromatin ◽  
Total Milk ◽  
Daily Milk Production ◽  
And Performance ◽  
Daily Milk

This study was conducted on local black goats belongs to private flock in Erbil plain from period July/ 2014 to April/ 2015. The study included 116 local black goats to study role of sex chromatin  on the daily milk production (DMP), total milk production (TMP), lactation period (LP), Fertility rate, Prolificacy, birth weight (BW), fertilize estrous sequences and correlation coefficients between the studied traits and repeatability of (DMP). The ratio of sex chromatin shapes drum stick, sessile nodule, tear drop and small club were%32.05, %52.97, %8.52 and%6.46respectively. The overall means of DMP, TMP, LP, Fertility rate, Prolificacy, BW and fertilize estrous sequences were 577.78g, 49.21kg, 85.70days, %75.74 ,1.35 ,3.01 kg and 1.50respectively. Sex chromatin shapes had significant effect on all of the characterize studied. The results showed that there is significant (P<0.05) in relation to (DMY), the highest rate of (DMY) was shown among the goats. The highest level of (DMP) was in animals which raised drum stick sex chromatin (681.03g), while the lowest level was among sheep which raised sex chromatin small club (514.77g), also, there are significant effect of sex chromatin shapes on fertility rate, prolificacy, BW, and fertilize estrus sequences. Correlation coefficient value between (DMP) correlated positively 0.88, 0.54, 0.33, and 0.31 for drum stick, sessile nodule, tear drop and small club respectively. Repeatability estimates for (DMP) 0.38. The conclusion of this study is the prediction of production (milk production and BW) and reproduction (Fertility rate, Prolificacy and fertilize estrous sequences) performance for local black goats from shapes and percentage of sex chromatin distribution and measurements. The sex chromatin shapes helped in doing early selection to elite goats on the linkage between sex chromatin shapes and performance production.

scholarly journals Factors affecting goat milk yield and its composition

2011 ◽  
Vol 49 (No. 11) ◽  
pp. 465-473 ◽  
Author(s):  
G. Ciappesoni ◽  
JPřibyl ◽  
M. Milerski ◽  
V. Mareš
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Statistical Models ◽  
Goat Milk ◽  
Dairy Goats ◽  
Factors Affecting ◽  
Stage Of Lactation ◽  
Daily Milk Production ◽  
Model Equations ◽  
Daily Milk

The aim of the paper was to prove the accuracy of various statistical models of vari&shy;ance analysis for estimation of systematic factors that influence milk yield and fat and protein content in dairy goats. Data on daily milk production recorded by methods AT, AC or A4 for the population of Czech White Shorthaired Goats over 1992&ndash;2002 was used for calculations. A total of 78 736 test day from 6 234 goats were analysed. Average daily milk production was 3.09 kg with 3.72% of fat and 2.84% of protein. Variability of examined traits was significantly influenced by effects of herd-year or herd-test day, litter size, parity, season of kidding, stage of lactation and the combined effect parity-year-season of kidding. The variants of model equations in which complex effects of herd-year were replaced by effects of herd-test day showed higher values of reliability for the three traits analysed. &nbsp;

Influence of milk yield, stage of lactation, and body condition on dairy cattle lying behaviour measured using an automated activity monitoring sensor

2009 ◽  
Vol 77 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Jeffrey M Bewley ◽  
Robert E Boyce ◽  
Jeremy Hockin ◽  
Lene Munksgaard ◽  
Susan D Eicher ◽  
...  
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Body Condition ◽  
Mixed Model ◽  
New Technologies ◽  
Final Analysis ◽  
Stage Of Lactation ◽  
Milk Cows ◽  
Daily Milk Production ◽  
Daily Milk

Time spent lying by lactating Holstein-Friesian cows of varying body condition scores (BCS) and milk yield was measured using an animal activity monitor. A 3-week average BCS was calculated for each cow; and in total, 84 cows were selected with 28 cows each among three BCS categories (Thin: BCS<2·75; Moderate: 2·75⩾BCS<3·25; Heavy: BCS⩾3·25) and two stage of lactation categories (<150 days in milk or >150 days in milk). Cows were kept in two management systems: parlour/freestall (n=60) or automated milking system/freestall (n=24). Behaviour was recorded for 5·3±0·1 d for each cow. Production levels were considered using a 28-d rolling average of daily milk production. Cows that exhibited clinical lameness before or during the observation period were excluded from analyses. For cows exhibiting oestrus, the day prior to, day of, and day following breeding were removed. The final analysis included 77 cows (408 d of observation). A mixed model was fitted to describe average daily hours spent lying. Results demonstrated that lying time increased as days in milk (DIM) increased (P=0·05). Variables that were tested but not significant (P>0·05) were BCS category, parity category (1 or ⩾2) and 28-d rolling average daily milk production. Although a numerical trend for increasing hours spent lying with increasing BCS was observed, after accounting for other factors in the mixed model, BCS did not significantly impact lying time. Continued investigation of these management factors that impact lying time and bouts, using new technologies, more cows, and more herds will help dairy owners better manage facilities and cow movements to optimize this essential behaviour.

scholarly journals Role of Sex Chromatin on performance in the Arabi sheep

2017 ◽  
Vol 41 (1) ◽  
pp. 145-150
Author(s):  
Salim Omar Raoof
Keyword(s):  
Birth Weight ◽  
Milk Production ◽  
Fertility Rate ◽  
Lactation Period ◽  
Production Traits ◽  
Sex Chromatin ◽  
Total Milk ◽  
Daily Milk Production ◽  
Daily Milk

     This study was conducted on 122 Arabi sheep belonged to private flock in Erbil plain Kurdistan region- Iraq, from July/ 2014 to August/ 2015 for studying the role of sex chromatin on daily milk production, total milk production, lactation period, fertility rate, prolificacy, birth weight and fertilizes estrous sequences. The repeatability for the studied traits were estimated. The ratio of sex chromatin shapes drum stick, sessile nodule, tear drop and small club were 23.37%, 60.22%, 8.54% and 7.87% respectively.The overall means of daily milk production, total milk production, lactation period, birth weight, fertilize estrous sequences, fertility rate, and Prolificacy were 814.65 g 81.49 kg 103.53 day, 78.10%, 1.60, 3.84 kg and 1.50 respectively. Sex chromatin shapes had significant (P<0.05) effect on all traits studied. The results revealed that the estimation of the Repeatability coefficient for daily milk production was 0.42. It was concluded from this study that production traits (milk production and birth weight) and reproduction (fertility rate, prolificacy and fertilize estrous sequences) performance of Arabi sheep were significantly affected by the shapes and percentage of sex chromatin distribution and measurements. The sex chromatin shapes could be used as a tool for early selection of the elite individuals.

scholarly journals Effect of omitting one or two milkings weekly on lactational performance in dairy ewes

2006 ◽  
Vol 73 (2) ◽  
pp. 207-215 ◽  
Author(s):  
Gonzalo Hervás ◽  
Jorge L Ramella ◽  
Secundino López ◽  
Jesús S González ◽  
Ángel R Mantecón
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Milk Composition ◽  
Residual Effects ◽  
Dairy Sheep ◽  
Before And After ◽  
Lactational Performance ◽  
Daily Milk Production ◽  
Experimental Treatments ◽  
Daily Milk

We investigated the effects of omitting one or two milkings weekly on milk yield and milk composition in dairy sheep. Ninety Spanish Assaf ewes were allocated to three experimental treatments: T0 (no milking omission; 14 milkings/week), T1 (omission of one evening milking per week; 13 milkings/week) and T2 (omission of two evening milkings per week; 12 milkings/week). The experiment was extended for 11 weeks, from week 7 after lambing to week 17 of lactation. Once a week, daily milk production was recorded just before and after the omission. Milk quality and composition was analysed in lactation weeks 9, 13 and 16. Omission of one or two evening milkings each week resulted in an increase in milk production recorded the day immediately after the omission (27% for T1 and 16% for T2), which can be attributed to accumulation of milk in the udder cisterns. This increase did not compensate completely for the loss of yield in the omitted milking. The lack of significant differences among the three milking strategies in milk production (on average 1903, 2062 and 1833 ml/d for T0, T1 and T2, respectively) recorded before omission throughout the trial, would indicate the absence of residual effects of the omission on production in subsequent weeks. Treatment T2 resulted in a loss of milk production of approximately 39% during those days when milkings were omitted, representing a decrease of approximately 10% of the estimated weekly milk production. In relation to milk composition, milking omission led to significant increases in the fat and protein concentrations of the milk collected after the omission, whereas differences were not significant for the milk obtained before the omission. Despite the slight increase observed in treatment T2 after the milking omission, the somatic cell count was always far below that considered as indicative of possible pathologies. In conclusion, at least one evening milking could be omitted each week in high-producing dairy sheep without adversely affecting milk yield and milk composition.

A consideration of the techniques for estimation of milk yield by suckled sheep and a comparison of estimates obtained by two methods in relation to the effect of breed, level of production and stage of lactation

1979 ◽  
Vol 92 (1) ◽  
pp. 123-132 ◽  
Author(s):  
J. M. Doney ◽  
J. N. Peart ◽  
W. F. Smith ◽  
F. Louda
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Water Turnover ◽  
Additional Information ◽  
Machine Milking ◽  
Stage Of Lactation ◽  
The Mean ◽  
Daily Milk Production ◽  
Daily Milk Yield ◽  
Daily Milk

SummaryThree techniques, lamb-suckling and test-weighing, hand- or machine-milking following administration of oxytocin, and measurements of body-water turnover, used for the estimation of milk yield in suckled sheep are discussed in relation to sources of error and comparability of estimates.Results are presented from an experiment in which the lamb-suckling and the oxytocin techniques were compared. The mean daily milk production of Scottish Blackface and East Friesland × Scottish Blackface ewes suckling single and twin lambs was measured by both methods at weekly intervals for 6 weeks. All ewes were well nourished to ensure full expression of milking capacity. Additional information from a similar experiment on Merino ewes is also presented.The oxytocin method gave higher estimates of mean daily milk yield in the first week of lactation, especially in the groups of ewes rearing single lambs and in the Blackface breed. By the second week in most groups and the third week in all groups there were no significant differences between estimates made by the two methods and the relative values of the estimates were not affected by level of milk production, number of lambs suckled or genotype of ewe and lamb.

scholarly journals Distribution of Holstein Friesian Dairy Cattle Populations in KUD Gemah Ripah Sukabumi, West Java for Milk Production of during Lactation, Daily Milk Production, and Fat Levels

2020 ◽  
Vol 5 (1) ◽  
pp. 1-5
Author(s):  
Raden Febrianto Christi ◽  
H. Hermawan ◽  
Lia Budimulyati Salman
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Secondary Data ◽  
Fat Content ◽  
Lactation Period ◽  
West Java ◽  
Holstein Friesian ◽  
Total Milk ◽  
Daily Milk Production ◽  
Daily Milk

Dairy cows are a type of livestock that have been developed by contributing products in the form of milk as a provider of animal protein. The more dairy cow population, the higher the milk production produced. This study aims to determine the population of dairy farming in Gemah Ripah Sukabumi KUD, West Java, and to determine the amount of milk production during the lactation period, daily milk production, and fat content. The research method used was a survey by taking primary and secondary data in 2018 and then analyzed with simple statistics to determine the mean, standard deviation, and coefficient of diversity. The results showed that the population of dairy cows was widespread in the Sukabumi area.  Namely in the Barokah group in the Sukalarang sub-district, the Cikole group in the Sukaraja sub-district, the Cintaresmi group in the Sukalarang sub-district, the Priangan group in the Sukalarang sub-district, the rukun tani II in the sub-district of Sukalarang, the rukun tani III in Sukalja, sulanjana I in Sukalarang sub-district. Sukalarang sub-district, sulanjana II sub-group sukalarang sub-district, sukalarang talisaid sub-district, Darma Sancang group, Sukaraja group consisting of calves, young dairy cows, dairy cows, and bulls with average total milk production (362.7) 3627 liters/lactation, average the amount of daily milk production is 10.8 liters/head/day. The average fat content is 3.44%. The conclusion showed that the population of dairy cows that was in Gemah Ripah Cooperative Sukabumi District has a total of 776 heads.  Consisting of calves, heifers, cow lactation, and males as well as having an average total milk production during the lactation period with 105 heads, which is 362.5 liters/lactation, the average daily milk production of 10.8 liters/head/day, with a fat content of 3.44%.

scholarly journals Contents of Zn, Cu, Mn and Se in Milk in Relation to their Concentrations in Blood, Milk Yield and Stage of Lactation in Dairy Cattle

2008 ◽  
Vol 77 (4) ◽  
pp. 523-531 ◽  
Author(s):  
A. Pechová ◽  
L. Pavlata ◽  
R. Dvořák ◽  
E. Lokajová
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Holstein Cattle ◽  
Blood Concentrations ◽  
Milk Samples ◽  
Stage Of Lactation ◽  
Lactation Stage ◽  
Daily Milk Production ◽  
Daily Milk

The objective of the study was to assess the effect of actual daily milk production and lactation stage on concentrations of Zn, Mn, Cu and Se in milk, and monitor correlations between milk and blood concentrations of these microelements. The study was performed in a herd of Holstein cattle with the average milk yield of 8,562 kg. Thirty-five dairy cows housed in one group were included in the study. Blood and milk samples were taken during two separate milk yield checks done 4 weeks apart. Actual milk production of monitored cows ranged from 19.6 to 62.6 l daily. For lactation stages we evaluated results of examinations performed from 7 to 188 days of lactation. Blood examinations showed that the cows included in our study had good supplementation with the microelements in question. Milk concentrations of individual microelements were as follows: 3855.2 ± 814.7 μg/l of Zn; 36.3 ± 14.4 μg/l of Cu; 20.1 ± 8.3 μg/l of Mn, and 28.6 ± 7.1 μg/l of Se. The effect of daily milk production on milk concentrations of the microelements was identified only for copper (r = -0.302, p ⪬ 0.05). The variable of days of lactation (not considering days of the colostrum period) showed a positive correlation in manganese (r = 0.419, p ⪬ 0.01); copper and selenium showed negative correlations (Cu: r = -0.258, p ⪬ 0.05; Se: r = -0.277, p ⪬ 0.05). The daily milk production influenced negatively only Cu concentration in milk, but Se, Zn and Mn was not influenced.With advancing lactation after colostrum period the concentration of Mn in milk raised, the concentration of Cu and Se declined and the concentration of Zn was unchanged.

scholarly journals Siyah Alaca İneklerde Meme Ölçülerinin Somatik Hücre Sayısı ve Günlük Süt Verimi Üzerine Etkisi

2013 ◽  
Vol 1 (1) ◽  
pp. 23 ◽  
Author(s):  
Ayhan Ceyhan ◽  
Mahmut Çınar ◽  
Ugur Serbester
Keyword(s):  
Dairy Cattle ◽  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Holstein Cattle ◽  
Milk Samples ◽  
Daily Milk Production ◽  
Daily Milk

This study was carried out to investigate the effect of udder measurements group on somatic cell count (SCC) and daily milk production. Milk samples and udder measurements were collected monthly from 79 lactating Holstein cows on commercial dairy in the province of Niğde. In the study, front teat length (FTL), rear teat length (RTL), front teat diameter (FTD), rear teat diameter (RTD), distance between front teats (DBFT), distance between rear teats (DBRT), front udder height, (FTH), rear udder height (RUH), distance between front and rear teats (DBST) were obtained in before afternoon milking. Udder measurements were divided into 5 groups according to the measurements. The effect of DBFT, DBRT, FTH, RTD, FTD and DBRT groups on daily milk production were statistically significant, while FTH, RUH and DBRT were found non-significant. The effect of udder measurements groups on SCC was found not significant, except rear teat diameter (RTD). Average daily milk production and SCC were estimated as 28.25 kg/day and 274.90 cell/ml, respectively. In conclusion, it can be said that the distance between teats, teat’s diameter and front udder height of Holstein cattle is important factor for milk yield of Holstein dairy cattle. Also, SCC is effected by rear teat diameter.

Sign in / Sign up

Export Citation Format

Share Document