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

Molochnoe i miasnoe skotovodstvo ◽

10.33943/mms.2021.29.60.003 ◽

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

Journal of Dairy Research ◽

10.1017/s0022029905001329 ◽

2005 ◽

Vol 73 (1) ◽

pp. 28-32 ◽

Cited By ~ 4

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.

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The Effect of Sex Chromatin on Some Reproductive Traits of local Sheep in Erbil

Journal of Biotechnology Research Center ◽

10.24126/jobrc.2015.9.2.423 ◽

2015 ◽

Vol 9 (2) ◽

pp. 6-10

Author(s):

Nihad Ahmad Ameen Ameen ◽

Salim Omar Raoof Raoof

Keyword(s):

Correlation Coefficient ◽

Milk Yield ◽

Correlation Coefficients ◽

Reproductive Traits ◽

High Rate ◽

Sex Chromatin ◽

Positive Correlation Coefficient ◽

Daily Milk Yield ◽

Coefficient Of Regression ◽

Daily Milk

This study was conducted on local sheep belongs to private flock in Erbil plain during the period 4/11/2011 till 25/10/2012. The investigation included 65 local sheep to study the effect of sex chromatinfrequency on the Daily Milk Yield (DMY), weight and age of ewes in addition the calculation ofRegression and Correlation coefficients between the studied traits of local sheep. The overall means offrequency of sex chromatin (drum stick, Appenx without stick, tear drop and small club). Appearedwith normal Neutrophils were 1.897, 1.034, 1.241, 0.741 and 95.86% respectively. The overall means ofDMY was 533.6g. The results showed that there was significant (P≤0.05) in relationship to DMY, thehighest rate of DMY was shown among the sheep had sex chromatin drum stick (675. 5g), while the rateof DMY was at lowest production among the sheep which had sex chromatin of small club (425.4g). Asignificant effect of weights and age of sheep on the patterns of sex chromatin were observed. Thehighest rate of DMY among the sheep was at the age of 4 years raised high rate of sex chromatin type(drum stick). A significant(P≤0.05) positive Correlation coefficient between DMY and sex chromatintype (drum stick) with value of 0.673, while there was a negative and significant (P≤0.05). Regressioncoefficient of DMY on sex chromatin coefficient (small club ) with coefficient of Regression value (-0.074). In addition the highest value of Correlation between the DMY and sex chromatin of (drum stick)was (0.856), followed with Correlation coefficient value between type of birth and weights of ewes(0.784), while the lowest Correlation value was (-0.087) between DMY and sex chromatin of (small club).

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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

The Journal of Agricultural Science ◽

10.1017/s0021859600060573 ◽

1979 ◽

Vol 92 (1) ◽

pp. 123-132 ◽

Cited By ~ 98

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.

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Effect of Bypass Protein on Milk Production and Economic of Lactating Crossbred Cows

Journal of AgriSearch ◽

10.21921/jas.v7i01.17633 ◽

2020 ◽

Vol 7 (01) ◽

Author(s):

RATNESH K CHOUDHARY ◽

A Saran ROY ◽

N K SINGH3 ◽

SANJAY KUMAR ◽

RAUSHAN K SINGH

Keyword(s):

Milk Production ◽

Milk Yield ◽

Crossbred Cows ◽

Lactating Cows ◽

Feed Cost ◽

Total Diet ◽

T1 And T2 ◽

Daily Milk Yield ◽

On Farm ◽

Daily Milk

An On-Farm Trial was conducted on 24 lactating crossbred cows for assessment of feeding formaldehyde treated mustard cake (bypass protein) on milk production and economic analysis of lactating cow. Cows were divided into three groups having 8 cows each, treatments were farmers’ practice (FP); (Control): The lactating animals under this group were fedas per the feeding schedule of the farmers (5 kg. dry roughage as rice straw + 6 hrs grazing as local grass and 4 kg. commercial concentrates), T1: The lactating animals under this group were fed as per farmers practicewith 12% mustard cake of total diet was provided to the cow by replacing the same amount of commercial concentrates andT2: The lactating animals under this group were fed as per farmers practicewith 12% formaldehyde treated mustard cake of total diet was provided to the cow by replacing same amount of commercial concentrates. The average daily milk yield of lactating cows under FP, T1 and T2 was 8.58, 8.82 and 9.85 kg per cow, respectively. Differences between FP and T2 were significant. The daily increase in milk yield was 1.27 kg and 1.03 kg in cows fed T2diet over the cows fed FP and T1diet, respectively. The B: C ratios for FP, T1 and T2 groups were 2.6, 3.0 and 3.3, respectively. The feed cost reduced in T2 group by Rs. 8.64 and increased milk production by 1.27 kg in respect to FP group.

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Daily milk yield prediction of dairy cows based on the GA-LSTM algorithm

2020 15th IEEE International Conference on Signal Processing (ICSP) ◽

10.1109/icsp48669.2020.9320926 ◽

2020 ◽

Author(s):

Wenli Zhang ◽

Kun Yang ◽

Naigong Yu ◽

Tingting Cheng ◽

Jichao Liu

Keyword(s):

Dairy Cows ◽

Milk Yield ◽

Yield Prediction ◽

Daily Milk Yield ◽

Daily Milk

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Novel Genes Associated with Dairy Traits in Sarda Sheep

Animals ◽

10.3390/ani11082207 ◽

2021 ◽

Vol 11 (8) ◽

pp. 2207

Author(s):

Michele Pazzola ◽

Giuseppe Massimo Vacca ◽

Pietro Paschino ◽

Giovanni Bittante ◽

Maria Luisa Dettori

Keyword(s):

Association Analysis ◽

Milk Yield ◽

Dairy Traits ◽

Breeding Schemes ◽

Milk Coagulation ◽

Set Up ◽

A Minor ◽

Daily Milk Yield ◽

Breed Sheep ◽

Daily Milk

The aim of the present research was to analyze the variability of 45 SNPs from different genes involved in metabolism and innate immunity to perform an association analysis with the milk yield, composition and milk coagulation traits. A population of 1112 Sarda breed sheep was sampled. Genotyping was generated by a TaqMan Open ArrayTM. Thirty out of the 45 SNPs were polymorphic, and 12 displayed a minor allele frequency higher than 0.05. An association analysis showed that the variability at genes PRKAG3 and CD14 was significantly associated with the daily milk yield. The variability at PRKAG3 was also associated with the protein and casein content, somatic cell score and bacterial score. The variation at the PRKAA2 gene was associated with the milk lactose concentration. The SNPs at CD14 were also associated with the traditional milk coagulation properties, while the SNPs at GHR and GHRHR were associated with kSR, a derived coagulation parameter related to the rate of syneresis. The information provided here is new and increases our knowledge of genotype–phenotype interactions in sheep. Our findings might be useful in appropriate breeding schemes to be set up for the Sarda sheep breed, but these should be confirmed by further studies, possibly performed on independent populations.

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Effects of Sprinkler Flow Rate on Physiological, Behavioral and Production Responses of Nili Ravi Buffaloes during Subtropical Summer

Animals ◽

10.3390/ani11020339 ◽

2021 ◽

Vol 11 (2) ◽

pp. 339

Author(s):

Musa Bah ◽

Muhammad Afzal Rashid ◽

Khalid Javed ◽

Talat Naseer Pasha ◽

Muhammad Qamer Shahid

Keyword(s):

Heat Stress ◽

Milk Yield ◽

Flow Rate ◽

Rectal Temperature ◽

Latin Square ◽

Flow Rates ◽

Group Water ◽

Humidity Index ◽

Daily Milk Yield ◽

Daily Milk

Water buffaloes wallow in water to combat heat stress during summer. With the decreasing reservoirs for wallowing, the farmers use sprinklers to cool the buffaloes in Pakistan. These sprinklers use a large quantity of groundwater, which is becoming scarce. The objective of the current study was to determine the effect of different sprinkler flow rates on the physiological, behavioral, and production responses of Nili Ravi buffaloes during summer. Eighteen buffaloes were randomly subjected to three sprinkler flow rate treatments in a double replicated 3 × 3 Latin square design. The flow rates were 0.8, 1.25, and 2.0 L/min. During the study, the average afternoon temperature humidity index was 84.6. The 1.25 and 2.0 L/min groups had significantly lower rectal temperature and respiratory rates than the 0.8 L/min group. Water intake was significantly higher in the 0.8 L/min group. Daily milk yield was higher in the 1.25 and 2.0 L/min groups than in the 0.8 L/min group. These results suggested that the sprinkler flow rates > 0.8 L/min effectively cooled the buffaloes. The sprinkler flow rate of 1.25 L/min appeared to be more efficient, as it used 37.5% less water compared to the 2.0 L/min.

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Milk production and its relationship with milk composition, body and udder morphological traits in Bedouin goat reared under arid conditions

Acta Scientiarum Animal Sciences ◽

10.4025/actascianimsci.v41i1.42552 ◽

2018 ◽

Vol 41 (1) ◽

pp. 42552

Author(s):

Fatima Kouri ◽

Salima Charallah ◽

Amina Kouri ◽

Zaina Amirat ◽

Farida Khammar

Keyword(s):

Body Weight ◽

Milk Production ◽

Milk Yield ◽

Milk Fat ◽

Morphological Traits ◽

Growth Traits ◽

Average Daily Gain ◽

Arid Conditions ◽

Daily Milk Yield ◽

Daily Milk

This research aims to assess the performances of lactating Bedouin goat under arid conditions, focusing on the relationship of milk yield with body and udder morphology and growth traits. Fourteen goats and their kids were followed during early lactation (90 days post-partum). Mean daily milk yield was 0.56 kg. Milk fat, proteins, lactose, solids non-fat and minerals were respectively 34.9, 38.9, 48.8, 107 and 6.7 g L-1. Mean kids’ birth weight, adjusted body weight at 90 days of age and average daily gain were respectively 2 kg, 6.6 kg and 51.4 g day-1. Daily milk yield was correlated with goats’ body weight, withers height, rump height, udder width and udder circumference but not with linear udder score and growth performances. These results provide important data about the milk production of Bedouin goat emphasizing its correlation with body and udder morphological traits which can help to elaborate a specific breeding program for this breed.

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