Genetic evaluations for measures of the milk-flow curve in the Italian Brown Swiss population

From birth to weaning calves tolerate most stress include metabolic stress and parturition and at new environment obtained nutrients from milk instead of mother blood. In order to successful production of calves, a set of nutritional and environmental management is needed. Calves mortality from birth to weaning is too much and cost effective for dairy industry. Instead, there is low mortality of heifers from weaning to parturition (1). Brown Swiss breed has low population in respect to Holstein in Iran. Low data is available about Brown Swiss population especially Brown Swiss calves. This study conducted to determine some information about Brown Swiss calves from birth to weaning and factors affecting economic traits at this period.

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Estimates of marker effects for measures of milk flow in the Italian brown Swiss dairy cattle population

BMC Veterinary Research ◽

10.1186/1746-6148-8-199 ◽

2012 ◽

Vol 8 (1) ◽

pp. 199 ◽

Cited By ~ 3

Author(s):

Kent A Gray ◽

Christian Maltecca ◽

Alessandro Bagnato ◽

Marlies Dolezal ◽

Attilio Rossoni ◽

...

Keyword(s):

Dairy Cattle ◽

Cattle Population ◽

Brown Swiss ◽

Milk Flow

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Milkability Evaluation of Jersey Dairy Cows by Lactocorder

Macedonian Veterinary Review ◽

10.2478/macvetrev-2019-0026 ◽

2020 ◽

Vol 43 (1) ◽

pp. 5-12 ◽

Cited By ~ 1

Author(s):

Tina Bobić ◽

Pero Mijić ◽

Vesna Gantner ◽

Gjoko Bunevski ◽

Maja Gregić

Keyword(s):

Statistical Analysis ◽

Dairy Cows ◽

Flow Curve ◽

Cattle Breed ◽

Flow Curves ◽

Daily Production ◽

Udder Health ◽

Milk Flow ◽

Jersey Cows ◽

Lower Production

AbstractSince there is not enough data about milkability of the Jersey cows, the aim of this paper is to show basic milkability traits of this cattle breed depending on the parity and milk flow curve types. Cows had average daily production (DMY) of 22.23 kg, milk yield per milking (MYM) of 9.72 kg, and average and maximum milk flow about 1.66 and 2.49 kg/min, respectively. Statistical analysis showed that DMY and MYM of the cows in 4th parity was significantly (p<0.05) higher comparing to cows in 1st and 3th parity. The duration of entirely milking is similar regarding the paritiesand only the cows in 3th and 4th differ significantly (p<0.05). Regarding the effect of milk flow curve, the significant (p<0.05) difference between unspecified and rectangular milk flow curve has been found for the average milk flow (AMF) and descending phase of the milk flow curve (TD). Cows with unspecified milk flow curve, have significantly (p<0.05) lower AMF and longer TD compared to cows with rectangular curve. Cows with bimodal milk flow curve have significantly (p<0.05) longer duration of the ascending phase compering to: unspecified, descending and rectangular. The results of this study have shown that Jersey cows have lower production and milk flow compared to other dairy cattle breeds. Nonetheless, they have uniform milkability traits, and a large representation of desirable milk flow curves which are associated with a beneficial effect on the udder health.

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Connection of milk flow curve to the somatic cell count in bovine milk

Archives Animal Breeding ◽

10.5194/aab-47-551-2004 ◽

2004 ◽

Vol 47 (6) ◽

pp. 551-556 ◽

Cited By ~ 2

Author(s):

P. Mijić ◽

I. Knežević ◽

M. Domaćinović

Keyword(s):

Somatic Cell ◽

Cell Count ◽

Flow Rate ◽

Flow Curve ◽

Somatic Cell Count ◽

Peak Flow ◽

Bovine Milk ◽

Correlation Coefficients ◽

Peak Flow Rate ◽

Milk Flow

Abstract. The modern equipment introduction into cow milking created technical possibilities for studying the milk flow curve and for using the results in cattle selection. In preventing mastitis, besides curing, other parameters of the milk flow curve could be used preventively. Research showed that cows that had the milk flow curve with a short duration of increasing flow rate (dIFR ≤ 0.40 min) and a larger quotient between the peak and down phase (QPD > 1.20) had also the least somatic cell count in milk (LSCC = 3.47, and 3.30 respectively). Such relation is favourable because increasing the relation, the duration of quick and uniform milking extends, and the duration of peak flow rate shortens. That also show correlation coefficients which were between the logarithmic somatic cell count in milk (LSCC) on one hand and the peak flow rate (dPFR), that means the quotient of peak and down phase (QPD) on the other hand negative (r= −0.25** and –0.27**). Breeding-selective procedures could create bull fathers and mothers with the most desirable milk flow curve and the duration of certain milking phases, whereby the somatic cell count in milk would be the least. Therefore it would be necessary to define desirable proportions of the milk flow curve with a special attention to the cow’s health udder.

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The level of udder emptying and milk flow stability in Tsigai, Improved Valachian, and Lacaune ewes during machine milking

Czech Journal of Animal Science ◽

10.17221/5922-cjas ◽

2012 ◽

Vol 57 (No. 5) ◽

pp. 240-247 ◽

Cited By ~ 4

Author(s):

L. Mačuhová ◽

V. Tančin ◽

M. Uhrinčať ◽

J. Mačuhová

Keyword(s):

Milk Production ◽

Flow Curve ◽

Frequency Of Occurrence ◽

Flow Curves ◽

Machine Milking ◽

Milk Flow ◽

Total Milk ◽

The Stability ◽

June July ◽

Daily Milk

The objective of this investigation was to evaluate the stability of milk flow curves and the volume of residual milk in relation to milk flow curves in breeds Tsigai, Improved Valachian, and Lacaune (n = 16 heads per breed) milked twice daily. Milk flow type stability was evaluated at morning milking (stabile milkings) during three successive days in the middle of two months (June, July). After the following fourth morning milking (OT milkings) in both months, oxytocin was injected intravenously at a dose of 2 UI. Afterwards the ewes were milked again in order to remove residual milk. The milk flow curves were classified into four types: 1 peak (1P), 2 peaks (2P), plateau I (maximal milk flow over 0.4 l/min) (PLI), plateau II (maximal milk flow less than 0.4 l/min) (PLII). If all milk flow curves of one animal were of the same type within one month and within both months, respectively, the animal was characterized as the ewe with the stabile type of milk flow. Frequency of occurrence of single milk flow types (1P : 2P : PLI : PLII) during stabile milkings was 42 : 49 : 9 : 0% in June and 51 : 37.5 : 11.5 : 0% in July. 33 ewes (i.e. 69%) had the stabile type of milk flow within both months. But, more than 51% of them had 1P type of milk flow. Milk production varied according to milk flow curve during OT milkings (0.427 ± 0.015, 0.498 ± 0.024, and 0.655 ± 0.035 l for 1P, 2P, and PLI, respectively). The highest percentage of residual milk from total milk yield (RM/TMY) was observed in ewes with 1P (20.29 ± 0.85%), followed by ewes with PLI (12.31 ± 1.99%) and 2P (9.72 ± 1.36%) (P < 0.0001). Lacaune ewes had the lowest amount of residual milk (0.054 ± 0.006 l) and RM/TMY (9.86 ± 1.16%) compared to breeds Tsigai (0.088 ± 0.008 l; 16.47 ± 1.44%) and Improved Valachian (0.069 ± 0.010 l; 15.99 ± 1.78%) indicating their better udder emptying.  

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Genetic parameters for functional longevity, type traits, SCS, milk flow and production in the Italian Brown Swiss

Italian Journal of Animal Science ◽

10.4081/ijas.2010.e28 ◽

2010 ◽

Vol 9 (2) ◽

Cited By ~ 19

Author(s):

Antonia B. Samoré ◽

Rita Rizzi ◽

Attilio Rossoni ◽

Alessandro Bagnato

Keyword(s):

Genetic Parameters ◽

Brown Swiss ◽

Milk Flow ◽

Type Traits

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Genetic analysis of fertility in the Italian Brown Swiss population using different models and trait definitions

Journal of Dairy Science ◽

10.3168/jds.2011-4661 ◽

2011 ◽

Vol 94 (12) ◽

pp. 6162-6172 ◽

Cited By ~ 17

Author(s):

F. Tiezzi ◽

C. Maltecca ◽

M. Penasa ◽

A. Cecchinato ◽

Y.M. Chang ◽

...

Keyword(s):

Genetic Analysis ◽

Brown Swiss ◽

Swiss Population

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Evaluation of genetic variation in the international Brown Swiss population

animal ◽

10.1017/s1751731113000281 ◽

2013 ◽

Vol 7 (7) ◽

pp. 1060-1066 ◽

Cited By ~ 4

Author(s):

G.M. Worede ◽

F. Forabosco ◽

B. Zumbach ◽

V. Palucci ◽

H. Jorjani

Keyword(s):

Genetic Variation ◽

Brown Swiss ◽

Swiss Population

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Association of milk flow curve and prevalence of mastitis pathogens in dairy cows

Indian Journal of Animal Research ◽

10.18805/ijar.b-965 ◽

2018 ◽

Author(s):

Vida Juozaitienë ◽

Lina Juozaitienë ◽

Eglë Èereðkienë ◽

Renata Japertienë ◽

Judita Þymantienë ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Dairy Cows ◽

Flow Curve ◽

Mammary Glands ◽

Flow Curves ◽

Black And White ◽

Milk Flow ◽

Negative Effect ◽

And Staphylococcus Aureus ◽

Mastitis Pathogens

The objective of this work was to evaluate the association of bimodality of milk flow curves with microbiological status of mammary glands and parity of cows. We selected 167 primiparous and 148 multiparous Lithuanian Black and White dairy cows in 2nd to 4th month of lactation. The bimodality of milk flow was determined in 22.2% primiparous and in 38.6% multiparous cows (P less than 0.001). The most prevalent pathogens of mastitis were Staphylococcus aureus (15.3%), other staphylococci (22.2%) and streptococci (5.8%). Prevalence of mastitis pathogens in multiparous cows was 1.4 times and the bimodality of milk flow curves –1.7 times higher in comparison with primiparous cows (P less than 0.001). The bimodality of milk flow curve was mostly associated with the prevalence of Streptococcus agalactiae and Staphylococcus aureus (P less than 0.001). The increased frequency of mastitis pathogens (21.5%) in cows with the bimodal milk flow curves supports the negative effect of bimodality on udder health of cows (P less than 0.001).

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Influence of Breed and Parity on Teat and Milking Characteristics in Dairy Cattle

Macedonian Veterinary Review ◽

10.2478/macvetrev-2018-0020 ◽

2018 ◽

Vol 41 (2) ◽

pp. 169-176

Author(s):

Murat Genc ◽

Omer Coban ◽

Ugur Ozenturk ◽

Omer Eltas

Keyword(s):

Dairy Cattle ◽

Dairy Cows ◽

Milk Yield ◽

Flow Rate ◽

Morphological Traits ◽

Holstein Cows ◽

Flow Rates ◽

Brown Swiss ◽

Cattle Breeds ◽

Milk Flow

Abstract The aim of this study was to determine some morphological traits of the udder teat and their influence on the milk flow rate in three dairy cattle breeds (Brown Swiss, Holstein and Simmental). The average milking time and milk yield was 8.79±0.16 minutes and 9.40±0.28 kg, respectively. There was a finding that the breed of the dairy cows had no effect on the total milking time, with the Holstein cows having the highest milk yield (P<0.01). The average milk flow rate was 1.09±0.04 kg/minute and the Holstein cows had the highest milk flow rate (P<0.05). The cow parity didn’t affect the milk flow rate and the milk yield. The average teat length, average teat diameter and average teat volume varied among the cattle breeds and were highest in the Brown Swiss, and lowest in the Simmental cows. In conclusion, the milk flow rate varies among cattle breeds, and it was observed that dairy cows with high milk yields have higher milk flow rates.

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