Oxytocin release and lactation performance in Syrian Shami cattle milked with and without suckling

2005 ◽  
Vol 73 (1) ◽  
pp. 28-32 ◽  
Author(s):  
Shehadeh H Kaskous ◽  
Daniel Weiss ◽  
Yassin Massri ◽  
Al-Moutassem B Al-Daker ◽  
Ab-Dallah Nouh ◽  
...  
Keyword(s):  
Milk Yield ◽  
Post Partum ◽  
Lactation Performance ◽  
Machine Milking ◽  
Oxytocin Release ◽  
Daily Milk Yield ◽  
Daily Milk

Oxytocin (OT) release and lactation performance in primiparous Syrian Shami cows were evaluated in response to two different machine milking regimes. Six cows were milked in the presence of the calves (PC) and subsequently suckled, whereas six cows were exclusively machine milked without the presence of their calves (WC) until day 91 post partum. Milk yield and milk constituents were determined weekly. The degree of udder evacuation was determined by the succeeding removal of residual milk. PC released OT during the milking process, whereas in WC no OT release was detected throughout the milking process. Consequently, the residual milk fraction was much lower in PC than in WC (11% v. 58%, P<0·05) and daily milk yield until day 91 post partum was higher in PC than in WC (12·6±0·3 v. 7·1±0·4 kg, P<0·05). In conclusion, Syrian Shami cattle are not suitable to be exclusively machine milked without the presence of their calves.

scholarly journals Reproductivity, Productivity and Management System of Indigenous Buffalo (Bubalus bubalis) Cows in Costal Areas of Pirojpur and Borguna District of Bangladesh

2014 ◽  
Vol 24 (1-2) ◽  
pp. 117-122 ◽  
Author(s):  
MR Karim ◽  
MZ Hossain ◽  
MR Islam ◽  
MS Parvin ◽  
MA Matin
Keyword(s):  
Birth Weight ◽  
Milk Yield ◽  
Management System ◽  
Post Partum ◽  
Bubalus Bubalis ◽  
Gestation Length ◽  
Calving Interval ◽  
Lactation Length ◽  
Daily Milk Yield ◽  
Daily Milk

Twenty five buffalo cows of Mothbaria Upazila of Pirojpur district and another twenty five indigenous buffalo cows of Pathorghata Upazila of Borguna district of Bangladesh were randomly selected and interviewed to collect data on reproductivity (gestation length, birth weight, age of first calving, post partum heat and calving interval), productivity (lactation length and daily milk yield) and management system (general management, housing, feeding, calf rearing and treatment facilities) of indigenous buffalo cows using pre-tested questionnaire during the period from January to June 2010. The reproductive parameters including gestation length, birth weight, age of first calving, post partum heat and calving interval of Mothbaria Upazila of Pirojpur district were 319.56 ± 5.93 days, 24.28 ± 4 kilograms, 50.88 ± 1.71 months, 153.6 ± 6.13 days, 547.92 ± 10.88 days respectively whereas in case of Pathorghata Upazila of Borguna district these parameters were 319.12 ± 4.69 days, 24.12 ± 3.6 kilograms, 51 ± 1.8 months, 153.44 ± 6.78 days, 547.24 ± 14.32 days respectively. The productive parameters including lactation length and daily milk yield of Mothbaria Upazila of Pirojpur district were 286.12 ± 11.27 days and 3.33 ± 0.68 liters/day respectively while in case of Pathorghata Upazila of Borguna district these parameters 290.44 ± 10.92 days and 3.43 ± 0.744 liters/day respectively. So, reproduction and production are almost regular comparing with other published reports with the exception of age of first calving which is almost 12 months later than the buffaloes of other countries. It could be concluded that the buffalo owners of these areas do not follow any scientific method of buffalo husbandry; they just follow traditional rearing system. The farmers mostly use buffaloes for draught purpose in these costal areas.DOI: http://dx.doi.org/10.3329/pa.v24i1-2.19113 Progress. Agric. 24(1&2): 117 - 122, 2013

Effect of pre and post-natal nutrition on the performances of ewes and lambs under semi intensive rearing system

2020 ◽  
Vol 26 (1-2) ◽  
pp. 43-50
Author(s):  
S Ahmed ◽  
MRH Rakib ◽  
M Yesmin ◽  
M Ershaduzamman
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Milk Yield ◽  
Post Partum ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Weaning Weight ◽  
Concentrate Mixture ◽  
Daily Milk Yield ◽  
Daily Milk

The study was conducted to know the effect of different levels of pre and post-natal nutrition on the performances of ewes and their lambs until 1 year of age and the profitable slaughter age of lambs under semi intensive system. Twenty eight (28) native Bengal ewes at 7 weeks of gestation were randomly assigned to four groups (T0, T1, T2, T3) and supplemented with a concentrate mixture at 0.0, 1.0, 1.5, 2.0% of their body weight respectively. Ewes were allowed to graze 8 hours daily. Creep mixture (20 g/lamb/day) was provided to lambs from 2 weeks age with an increment of 10 g/lamb/week. After weaning, 20 growing male lambs were selected and reared 01 year of age with concentrate mixture at 1.5% of their body weight and 8 hours grazing irrespective of treatment groups. Parameters like, ewe’s litter size, daily milk yield, post-partum heat and lamb’s birth weight, weaning weight, live weight at 06, 09 and 12 months were recorded. The data were analyzed in an ANOVA with CRD by using SPSS v. 20. The mean differences were tested by DMRT at a probability level of P<0.05. After weaning, the lamb growths were analyzed considering age as fixed factor. Regression correlations among different parameters with different ages were also performed. Significantly higher daily milk yield (P<0.01), weaning weight (P<0.05) and daily weight gain of lamb until weaning (P<0.05) were observed in T2 group. Besides, lambs weight at 06, 09, and 12 months differ significantly (P<0.01) along with corresponding daily weight gain (P<0.05). Lambs daily weight gain did not differ significantly from weaning to 09 months of age but significantly reduced (P<0.05) from 09 to 12months age. Finally, it may be concluded that a concentrate diet containing 20% CP during late pregnancy to lactation should be supplied to obtain maximum performances of ewes and their lambs. Besides, native Bengal lamb would be slaughtered between 06 to 09 months of age to get maximum return. Bang. J. Livs. Res. Vol. 26 (1&2), 2019: P. 43-50

scholarly journals Evaluation of Red Chittagong Cows Based on Test Day Milk Production

2013 ◽  
Vol 19 (2) ◽  
pp. 101-109
Author(s):  
MSA Reza ◽  
AKFH Bhuiyan ◽  
MA Habib ◽  
T Rabeya
Keyword(s):  
Milk Yield ◽  
Recurrent Selection ◽  
Lactation Performance ◽  
Cattle Breeding ◽  
Indigenous Cattle ◽  
Selection Decision ◽  
Recorded Data ◽  
Daily Milk Yield ◽  
Repeated Test ◽  
Daily Milk

The merit of Red Chittagong cows-a promising indigenous cattle genetic resource of Bangladesh was evaluated by using test day milk yield records of total 41 individuals. The data were collected from the Nucleus Herd of Red Chittagong (RC) cattle maintained at Bangladesh Agricultural University, Mymensingh from June, 2007 to October, 2008 under supervised animal recording system along with the previously recorded data from 2005 was also taken into consideration. Data were then analyzed for evaluating the cows based on lactation yield and average daily milk yield. Average lactation yield and daily milk yield were 453.86 ± 59.61 and 1.99 ± 0.14 kg, respectively. The highest lactation yield (538.04 kg) and daily milk yield (2.3 kg) was found in 4th and 5th lactation, respectively. The most probable producing ability (MPPA) of RC cows was calculated by using the test day records and then the animals were ranked on the basis of their MPPA value. For MPPA calculation two methods were followed; cow’s repeated lactation performance (MPPA1) and within lactation repeated test day records and averaged (MPPA2). The highest MPPA for lactation yield was shown by the cow no. 36 (645.61 kg) and the highest MPPA1 and MPPA2 for daily milk yield were 2.83 and 3.46 kg, respectively for cow no. 03. The result of this study suggests that test-day yields may well be used for genetic evaluation of cows to make recurrent selection decision in cattle breeding programs.DOI: http://dx.doi.org/10.3329/pa.v19i2.16950 Progress. Agric. 19(2): 101 - 109, 2008

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.

Population parameter estimation of daily milk yield of the Chios sheep using test-day random regression models and Gibbs sampling

2005 ◽  
Vol 81 (2) ◽  
pp. 233-238 ◽  
Author(s):  
G. Banos ◽  
G. Arsenos ◽  
Z. Abas ◽  
Z. Basdagianni
Keyword(s):  
Gibbs Sampling ◽  
Milk Yield ◽  
Fourth Order ◽  
Regression Models ◽  
Post Partum ◽  
Random Regression ◽  
Population Parameter ◽  
Residual Variance ◽  
Daily Milk Yield ◽  
Daily Milk

AbstractParameters of daily milk yield during the first three lactations of Chios ewes were estimated with random regression models. Data consisted of 42 675 test-day records of 7121 ewes from 75 flocks that had lambed between 1998 and 2000. Models fitted fourth order fixed regressions on Legendre polynomials of the number of days post partum and fourth order random regressions on the individual animal. (Co)variance components were estimated with Gibbs sampling. Lactations were analysed separately. The four eigen values accounted for 0·80 to 0·84, 0·11 to 0·15, 0·04 to 0·05 and about 0·01 of the animal variance, respectively, depending on lactation number. Animal variance estimates, including genetic and, partly, permanent environment effects, were high at the beginning of each lactation and decreased as lactation progressed, suggesting that the animal effect is most important to early daily records. Residual variance was highest in the middle of lactation, suggesting that non-systematic environmental factors play a bigger at that time. Animal correlation estimates between daily yield records ranged from 0·26 to 0·99, were highest for adjacent days and decreased for days further apart. The decline had a different shape in the three lactations and was more evident in the first, suggesting that the three lactations may be biologically distinct traits. Animal correlation estimates between daily and total lactation milk yield ranged from 0·61 to 0·98 and were highest in the middle and lowest towards the end of lactation. Early lactation daily yield had an animal correlation of 0·70 to 0·80 with total lactation milk yield, in all three lactations. Results of this study suggest that daily milk yield records in the early stages of lactation may be useful for selection of ewes with high producing ability and accurate prediction of total lactation milk yield.

scholarly journals Changes in udder size and liveweight of West African Dwarf, Red Sokoto and Sahel goats during lactation and their phenotypic relationship with partial daily milk yield

2021 ◽  
Vol 31 (1) ◽  
pp. 119-129
Author(s):  
I. J. James ◽  
O. A. Osinowo
Keyword(s):  
Genetic Markers ◽  
Milk Yield ◽  
Post Partum ◽  
West African ◽  
West African Dwarf ◽  
Lactating Goats ◽  
Daily Milk Yield ◽  
Daily Milk

Changes in udder size and liveweight (LWT) of ten West African Dwarf (WAD), three Red Sokoto (RS) and three Sahel goats during lactation and their phenotypic relationship with partial daily milk yield (PDM) were studied. Udder length (UL), udder width (UW), udder circumference (UC), udder volume (UV), distance between teats (DBT), teat height to ground (THG), teat length (TL), teat width (TW), teat circumference (TC) and LWT of does were determined weekly for 12 weeks of lactation commencing from 4 days post partum. There was increase in udder size arising from increases in all udder dimensions (except THG) of WAD from 1st - 3rd week of lactation and RS and Sahel from 1st- 2nd week of lactation when they peaked and thereafter declined up to 12 weeks of lactation. Partial daily milk yield followed the same pattern as the udder dimensions, Sahel dues had the largest udder size with highest average PDM, except for TC' which was largest in RS does. The WAD does had the smallest udder size with lowest average PDM. Largest size of udder was obtained on the day of peak milk yield. The correlation between udder dimensions, LWT and PDM were obtained with UL (r = 0.23), UW (r = 0.30), UC (r = 0.52), UV (r = 0,50), DBT (r = 0.57), THG (r = -0.32), TL (r = 0.09). TW (r = 0.226), TC (* = 0.36) and LWT (r = 0.50). Since, UW, UC, UV, DBT, TC and LUT of lactating goats showed significantly high correlation to average PDM, they could be good indicators of milk yield requiring further investigation as genetic markers.

scholarly journals Relationship between udder measurements during pregnancy and partial daily milk yield in goats

2021 ◽  
Vol 31 (2) ◽  
pp. 252-262
Author(s):  
I. J. James ◽  
O. A. Osinowo
Keyword(s):  
Milk Yield ◽  
Post Partum ◽  
West African ◽  
Significant Determinant ◽  
Third Trimester ◽  
The Third ◽  
Exponential Increase ◽  
Rate Of Increase ◽  
Daily Milk Yield ◽  
Daily Milk

Relationship between udder measurements during pregnancy and partial daily milk yield (PDM) in ten West African Dwarf (WAD), three Red Sokoto (RS) and Sahel goats was studied. Udder width (UW), udder circumference (UC), distance between teats (DBT) and teat length (TL) were measured monthly before conception and during pregnancy up to parturition. PDM was determined weekly for 12 weeks of lactation commencing from 4 days post partum. There was a slight increase in udder dimensions within the first 2 trimesters of pregnancy (day 0 - 100) and then followed by an exponential increase during the third trimester (last 50 days of pregnancy) across the breeds. Sahel does had the largest udder dimensions with highest average PDM while WAD does had the smallest udder with lowest average PDM. The highest correlations between udder growth curve parameters and average PDM were obtained with A (r. 0.795) and b (r = 0.609). Thus, udder size at conception and during pregnancy appeared to be a significant determinant of average PDM per lactation and could be more important to average PDM than the rate of increase in udder size during pregnancy.

scholarly journals Lactation performance of Red Chittagong Cattle and effects of environmental factors

1970 ◽  
Vol 27 (1) ◽  
pp. 18-25 ◽  
Author(s):  
MA Habib ◽  
MA Afroz ◽  
AKFH Bhuiyan
Keyword(s):  
Environmental Factors ◽  
Milk Yield ◽  
Season Of Birth ◽  
Production Traits ◽  
Lactation Performance ◽  
Dry Period ◽  
Lactation Length ◽  
Daily Milk Yield ◽  
Daily Milk

The present study was undertaken to estimate effects of environmental factors onmilk production traits in Red Chittagong Cattle (RCC). A total of 103 milk yield recordsof 45 RCC cows obtained between 2005 and 2009 were analysed. Actual lactation yield,lactation length, daily milk yield and dry period were estimated as 500.7 ± 19.3 kg, 259.6 ±6.2 days, 1.9 ± 0.1 kg and 162.4 ± 7.7 days, respectively. Age and season correctedlactation yield, 305 day milk yield and daily milk yield were estimated as 605.4 ± 22.9,677.1 ± 19.4 and 2.2 ± 0.1 kg, respectively. Sex of calf and season of birth did notsignificantly (P>0.05) affect production, but lactation order significantly (P<0.05) affectedproduction except lactation length. Year of birth had no effect (P>0.05) on the traitsanalysed except daily milk yield (P<0.05). Calving age significantly (P<0.05) affectedlactation yield but did not other traits. Cows in 5th lactation produced highest total (604.3± 69.3 kg) and daily milk yield (2.17 ± 1.8 kg). Cows aged 6 – 7 years had best lactationyield (576.8 ± 60.5 kg).(Bangl. vet. 2010. Vol. 27, No. 1, 18 – 25)DOI: 10.3329/bvet.v27i1.5911

scholarly journals Productive and Reproductive Efficiency of Red Chittagong Cattle Under Farm Condition

2014 ◽  
Vol 18 (2) ◽  
pp. 109-114 ◽  
Author(s):  
MP Mostari ◽  
KS Huque ◽  
MS Hasanat ◽  
Z Gulshan
Keyword(s):  
Birth Weight ◽  
Milk Yield ◽  
Post Partum ◽  
Reproductive Efficiency ◽  
Male And Female ◽  
Lactation Length ◽  
Adult Body ◽  
Adult Body Weight ◽  
Daily Milk Yield ◽  
Daily Milk

The productive and reproductive efficiency of Red Chittagong cattle (RCC) reared at the Bangladesh Livestock Research Institute (BLRI) farm was evaluated. A total of 46 RCC of different categories were considered under this study. Parameters studied were birth weight, weight at 3, 6 months of age and adult body weight, growth rate, daily milk yield, lactation length, lactation yield, age at puberty, weight at puberty, age at first calving, post partum estrus period, service per conception, calving interval and gestation length of RCC were collected and recorded. The birth weight differed significantly (p<0.01) between male and female and the average birth weight of RCC calves at farm level was 14.87 kg. The growth rates and adult body weight also differed significantly (p<0.05 and p<0.01) between male and female except in growth rate from 3 to 6 months of age. The average daily milk yield, milk yield per lactation and lactation length of RCC were 2.24 kg, 526.81 kg and 238 days, respectively. The age at puberty, service per conception, post partum estrus period and calving interval of RCC heifers and cows were 15 months, 1.15, 40 days and 11 months, respectively. It can be concluded that the RCC is a genetically and economically superior variety of Bangladesh.DOI: http://dx.doi.org/10.3329/pa.v18i2.18166 Progress. Agric. 18(2): 109 - 114, 2007

CHARACTERISTICS OF SUITABILITY FOR MACHINE MILKING OF SIMMENTAL COWS AND ITS CROSS-BREED WITH RED-AND-WHITE HOLSTEINS

2021 ◽  
pp. 14-17
Author(s):  
М.Ю. ГЛАДКИХ ◽  
О.В. КУЗНЕЦОВА ◽  
К. ХАМДАН
Keyword(s):  
Correlation Coefficient ◽  
Milk Yield ◽  
Volga Region ◽  
Positive Correlation ◽  
Machine Milking ◽  
Yield Time ◽  
Daily Milk Yield ◽  
Daily Milk ◽  
Selection Work

Для характеристики пригодности к машинному доению коров разной степени кровности по симментальской породе в условиях Поволжья были оценены 237 особей симментальской породы и помесей разной степени кровности по красно-пестрым голштинам (КПГ): 25—50%, 50—75% и выше 75%. Оцениваемыми признаками являются форма вымени и сосков, среднесуточный удой, время доения, интенсивность молокоотдачи. Установлено, что среднесуточный удой в группе коров с кровностью 25—50% по КПГ достоверно (Р<0,01) превышал этот показатель у чистопородных симменталов. Время доения в этой группе (12,23±0,21 мин) было достоверно меньше, а интенсивность молокоотдачи (1,9±0,03 кг/мин) достоверно (Р<0,01) выше по сравнению с чистопородными животными. По величине среднесуточного удоя между коровами с ваннообразной и чашеообразной формами вымени не выявлено достоверных различий, коровы с ваннообразным выменем достоверно (Р<0,05) превосходят особей с округлым выменем. Установлено, что все изученные признаки пригодности к машинному доению достоверно коррелируют друг с другом, что требует обязательного использования хотя бы одного из них при селекционной работе. Коэффициент корреляции между среднесуточным удоем и временем доения колебался от 0,416 до 0,603 во всех исследуемых группах. Взаимосвязь между суточным удоем и скоростью доения варьировала от 0,316 до 0,758. Ее показатели были значимыми при Р<0,01 во всех исследуемых группах. Между среднесуточным удоем и скоростью доения выявлена положительная связь, которая меняется от сильной до почти слабой с увеличением кровности по КПГ. To characterize the suitability for machine milking of cows of different pedigree in the Simmental breed in the Volga region we evaluated 237 cows of Simmental breed and crossbreeds of different blood streak by red and white Holstein: 25—50%, 50—75% and above 75%. The udder and teat shape, daily milk yield, time of milking and intensity of milk yield were evaluated. It was established that the average daily milk yield in the group of cows with blood 25—50% by Holstein was significantly higher than that in the group of purebred Simmental cows (P<0.01). The milking time in this group (12.23±0.21 min) was significantly shorter, and the milking intensity (1.9±0.03 kg/min) was significantly higher in comparison with purebred cows (P<0.01). There were no significant differences in the average daily milk yield between the cows with bowl-shaped and tub-shaped udders, the cows with tub-shaped udders significantly exceeded the cows with round udders (P<0.05). It was found that all the studied traits of suitability for machine milking significantly correlate with each other, which requires obligatory use of at least one of them in selection work. The correlation coefficient between the average daily milk yield and time of milking ranged from 0.416 to 0.603 and the correlations were significant in all the groups. In our study, the correlation between daily milk yield and milking rate ranged from 0.316 to 0.758, its values were significant at P<0.01 in all groups under investigation. Positive correlation between average daily milk yield and milking rate was found in all studied groups; however, it varied from strong to almost weak with the increase of the blooding rate.

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