Estimation of maximum thermo-hygrometric index thresholds affecting milk production in Italian Brown Swiss cattle

Mastitis is a complex disease causing inflammation of the udder, which has been estimated to cost the dairy farmer between £40-£117/cow per year (Stott et al., 2002). Economic loss occurs as a result of discarded milk, reduced milk yield and milk quality, increased vet costs and an increase in replacement costs. The objective of this study was to examine the effect of breed on the incidence of mastitis and somatic cell counts and milk production capabilities of Holstein Friesian, Brown Swiss and Brown Swiss crossbred cows.

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Short communication: A comparison between purebred Holstein and Brown Swiss × Holstein cows for milk production, somatic cell score, milking speed, and udder measurements in the first 3 lactations

Journal of Dairy Science ◽

10.3168/jds.2011-4255 ◽

2011 ◽

Vol 94 (10) ◽

pp. 5212-5216 ◽

Cited By ~ 4

Author(s):

S. Blöttner ◽

B.J. Heins ◽

M. Wensch-Dorendorf ◽

L.B. Hansen ◽

H.H. Swalve

Keyword(s):

Somatic Cell ◽

Milk Production ◽

Short Communication ◽

Somatic Cell Score ◽

Holstein Cows ◽

Brown Swiss

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Uterine torsion in Brown Swiss cattle: retrospective analysis from an alpine practice in Switzerland

Veterinary Record ◽

10.1136/vr.103021 ◽

2015 ◽

Vol 177 (6) ◽

pp. 152.1-152 ◽

Cited By ~ 2

Author(s):

Th. Mock ◽

E. Hehenberger ◽

A. Steiner ◽

J. Hüsler ◽

G. Hirsbrunner

Keyword(s):

Retrospective Analysis ◽

Brown Swiss ◽

Uterine Torsion ◽

Brown Swiss Cattle

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LACTATION PERFORMANCE OF RANGE BEEF AND DAIRY-BEEF COWS

Canadian Journal of Animal Science ◽

10.4141/cjas84-032 ◽

1984 ◽

Vol 64 (2) ◽

pp. 253-265 ◽

Cited By ~ 9

Author(s):

SARAH BUTSON ◽

R. T. BERG

Keyword(s):

Milk Production ◽

Beef Cows ◽

Significant Decline ◽

Lactation Performance ◽

University Of Alberta ◽

Brown Swiss ◽

Percent Protein ◽

The Difference ◽

The University ◽

Better Than

A milking experiment with range, single-suckled beef cows was conducted over two lactations in 1976 and 1977 at the University of Alberta Research Ranch. A total of 428 cows were milked, ranging from 2 to 10 yr of age and representing four breed groups of Herefords and crossbreds of traditional beef and dairy breeds. Measurements of milk were taken in June and September each year. Milk was extracted following an intrajugular injection of 20 IU of oxytocin. Samples were analyzed for butterfat percent, protein percent and lactose percent. Age and breed of dam differences in milk yields, constituent percentages and yields were assessed. Least squares means of yields pooled over the two periods each year indicated that dams with Holstein and Brown Swiss breeding (DS) yielded more milk than beef crossbreds and purebred Herefords. Average milk yields estimated over 24 h ranged from 5.7 kg/day for Herefords to 7.8 kg/day for DS dams. Compared to 2-yr olds at 100%, 3-yr olds produced 125%, 4-yr olds 136% and mature cows 139% greater yield. The difference between June and September yields was evident between breed groups. Hereford milk production exhibited the greatest decline over 87 days compared to all other crossbreds and DS were the most persistent. Mature cows maintained milk yields better than younger cows, and 2-yr old milk yields declined most noticeably. All crossbred groups produced less butterfat percent and lactose percent content than the Herefords, yet yielded more total energy. All constituent percentages were higher than those reported for commercial dairy cattle. All constituent percentages increased significantly from June to September at approximately 130 days in lactation. A significant decline was noted for all constituent yields in September. Dairy crossbreds demonstrated the highest persistency for all constituent yields. Beef Synthetic dams were intermediate in yield persistency. Average milk yields had negative (P < 0.05) correlations with average constituent percentages. Inter-correlations among constituent percentages were variable and generally small and negative. Key words: Lactation, range cows

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Prediction of Milk Production per Cow Lactation in the Mexican Tropics

RECUBRIMIENTO COMESTIBLE CON BASE DE PIÑON MEXICANO (Jatropha curcas) SOBRE LA CALIDAD DE CHAYOTE MINIMAMENTE PROCESADO ◽

10.32854/agrop.v13i12.1890 ◽

2021 ◽

Vol 13 (12) ◽

Author(s):

Mónica Yazmín Herrera-Sotero ◽

Julio César Vinay-Vadillo ◽

Elizabeth León-García ◽

Javier Francisco Enríquez-Quiroz ◽

Benjamín Alfredo Piña-Cárdenas ◽

...

Keyword(s):

Statistical Model ◽

Mathematical Models ◽

Milk Production ◽

Design Methodology ◽

Linear Interpolation ◽

Test Results ◽

Birth Season ◽

Monthly Data ◽

Brown Swiss ◽

Mexican Tropics

Objective: To evaluate non-linear and linear mathematical models used to estimate milk production per lactation, at different frequencies of milk weighing from records of Holstein (Ho), Brown Swiss (BS) cows and their crosses with Zebu (Z). Design/Methodology/Approach: The models evaluated were: Wood, Wilmink and Linear Interpolation. Daily records of milk production from 471 lactations of 72 cows were used; 1,884 records were created with frequencies of weekly, biweekly and monthly milk production. The following were included in the statistical model: the genotype (Ho X Z andSP X Z), birth season (rainy and dry), and number of lactation (1 and 2) with double and triple interactions. The statistical analyses were performed with GLM from MINITAB v17. The means were compared with Tukey’s test. Results: No differences were found (P?0.05) between the models for the average milk production per lactation in kg, obtained from daily measurements or estimated from weekly, biweekly and monthly data, although for the factors of birth season, number of lactation, and genotype they showed differences (P ? 0.05) in milk production per lactation. Study Limitations/Implications: Daily records of milk production are necessary to obtain production per lactation; the models applied predict milk production in a similar way in different frequencies of weighing in Holstein, Brown Swiss cows and their crosses with Zebu. Findings/Conclusions: The models used allow predicting the milk production per cow in a similar way in different frequencies of weighing.

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