scholarly journals Environmental variables and Jersey cattle milk quality in the humid tropic of Costa Rica.

1969 ◽  
Vol 7 (2) ◽  
pp. 165-171
Author(s):  
Rodolfo WingChing-Jones ◽  
Esteban Mora Chaves
Keyword(s):  
Costa Rica ◽  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Somatic Cell Count ◽  
Climatic Conditions ◽  
Humid Tropics ◽  
Jersey Cattle ◽  
Lactose Concentration ◽  
System Variables

Climatic conditions affect milk production in the humid tropics. They have an effect on on somatic cell count (SCC) and total solids (TS), fat, protein (CP) and lactose concentration in milk. We studied these variables in Turrialba, Costa Rica, for 52 weeks between 2009 and 2010. We collected 784 samples (100 ml each) of milk from 19 animals and analyzed them with the FOSS Electric A/S for MilkoScan TM FT 120 Type 71200. Somatic cell count was done with the 400 Series Fossomatic. Temperature affected TS, fat and lac- tose content (p <0.05), precipitation affected the TS and CP content correlated with radiation. Humidity affected SCC, TS, fat and lactose. Within system variables, animal and lactation days are significant for SCC and milk components; calving number was related to fat content, CP and lactose. Age and milk production affect TS, fat, CP and lactose. Month affected TS, CP and lactose content. All variables changed with the year.  

scholarly journals Relation of Milk Production Loss to Milk Somatic Cell Count

1999 ◽  
Vol 40 (1) ◽  
pp. 47-56 ◽  
Author(s):  
E. Koldeweij ◽  
U. Emanuelson ◽  
L. Janson
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Somatic Cell Count ◽  
Production Loss

scholarly journals Some factors influencing milk somatic cell count of Holstein Friesian and Brown Swiss cows under the Mediterranean climatic conditions

2009 ◽  
Vol 52 (2) ◽  
pp. 124-133 ◽  
Author(s):  
A. Koç ◽  
K. Kizilkaya
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Repeated Measures ◽  
Somatic Cell Count ◽  
Control Program ◽  
Resistance Mechanisms ◽  
Climatic Conditions ◽  
Brown Swiss ◽  
Holstein Friesian ◽  
The Mediterranean

Abstract. The aim of this study was to determine the influencing factors on somatic cell count (SCC) in the milk of Holstein Friesian (HF) and Brown Swiss (BS) cows raised on three dairy farms under the Mediterranean climatic conditions in Turkey. For a two-year period, farms were visited monthly to measure daily milk yield (DMY) and collect milk samples from each cow during the morning and evening milking. Total of 1 429 SCC readings from 67 HF and 16 BS cows were analyzed by using repeated measures. Breed (P<0.01), lactation number (LN) (P<0.01), milking time (MT) (P<0.05), lactation month (LM) (P<0.01) and the interactions of breed-LM (P<0.05), herd-LM (P<0.01) and LN-LM (P<0.01) effects on SCC were statistically significant as did the co-variable DMY effect (P<0.01). The effect of herd and herd-MT interactions on SCC were statistically insignificant (P>0.05). The SCC means for BS and HF cows were 5.464±0.060 (291 072 cells/ml) and 5.654±0.029 (450 817 cells/ml), respectively. The SCC mean for morning milking (338 065 cells/ml) was 25 850 cells/ml lower than that of evening milking. The LN4 had the highest SCC mean (490 908 cells/ml) and was statistically different from those of LN1 (P<0.01) and LN2 (P<0.05). The SCC level was the highest in the first LM (601 174 cells/ml) and this level then decreased in the later months. Possible reasons for the difference in SCC means between the breeds are different resistance mechanisms against mastitis, different morphological conformations of udders and different milk yields between these two breeds. The insignificant differences found among herds show the similarities of management, milking hygiene and barn conditions. In order to decrease SCC in milk and increase udder health, some precautions need to be taken like improving milking management, hygiene and barn conditions, milking the cow at uniform intervals, feeding the cows after the milking and applying a mastitis control program.

Genetic trends production and somatic cell count for Jersey cattle in Zimbabwe born from 1994 to 2005

2012 ◽  
Vol 44 (8) ◽  
pp. 1921-1925 ◽  
Author(s):  
Edward Mtunduwatha Missanjo ◽  
Venancio Edward Imbayarwo-Chikosi ◽  
Tinyiko Edward Halimani
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Jersey Cattle ◽  
Genetic Trends

The MUC 1 gene polymorphism is not associated with milk productive traits and somatic cell count in Jersey cattle

2019 ◽  
Vol 50 (2) ◽  
pp. 188-189
Author(s):  
Lucas Vargas ◽  
Daniel Duarte Silveira ◽  
Rogério Fôlha Bermudes ◽  
Heden Luiz Marques Moreira ◽  
Anibal Eugênio Vercesi Filho ◽  
...  
Keyword(s):  
Gene Polymorphism ◽  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Jersey Cattle ◽  
Productive Traits

scholarly journals Hycole Doe Milk Properties and Kit Growth

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 214
Author(s):  
Agnieszka Ludwiczak ◽  
Joanna Składanowska-Baryza ◽  
Beata Kuczyńska ◽  
Marek Stanisz
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Litter Size ◽  
Somatic Cell Count ◽  
Quality Traits ◽  
Litter Weight ◽  
Daily Milk Production ◽  
Rabbit Milk ◽  
Daily Milk

The level of production and the physiochemical traits of rabbit milk affect the growth and the mortality of bunnies during lactation. The goal of the study was to analyze the effect of litter size and day of lactation on the quality traits of rabbit milk, milk production, and associative traits. The study was conducted on 32 Hycole does and their litters. The rabbit milk pH ranged from 6.61 to 7.46. The colostrum was characterized by the highest content of total solids (31.54 and 31.80 g kg−1) and fat content (15.73 and 15.9 g kg−1). The milk from the beginning of the lactation was characterized by the highest level of somatic cell count (SCC) (523.67 and 536.57 103 mL−1), which gradually decreased to reach the lowest level on days 17 and 21 of lactation. The daily milk production was greater for does nursing 10 kits per litter compared to those nursing eight kits per litter (p < 0.001). The peak of milk production occurred on day 17 postpartum. To conclude, the litter size has a clear effect on milk production as well as litter weight and litter weight gains. It is also important to note that the day of lactation affected the physiochemical traits of rabbit milk.

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