scholarly journals Validation and Use of the RumiWatch Noseband Sensor for Monitoring Grazing Behaviours of Lactating Dairy Cows

Dairy ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 104-111
Author(s):  
Zelin Li ◽  
Long Cheng ◽  
Brendan Cullen
Keyword(s):  
Milk Production ◽  
Farm Management ◽  
Video Observation ◽  
Validation Dataset ◽  
Dairy Production ◽  
Concordance Correlation ◽  
Livestock Farming ◽  
Lactating Dairy Cows ◽  
Daily Milk Production ◽  
Daily Milk

Precision livestock farming (PLF) supports the development of sustainable dairy production. The sensors used in PLF provide valuable information for farm management, but they must be validated to ensure the accuracy. The goal of this study was to validate and use the RumiWatch sensor (RWS; Itin+Hoch GmbH, Liestal, Switzerland) to differentiate prehension bites, eating chews, mastication chews and rumination chews in pressure-based system. Twenty cows were used for 14 days to provide a validation dataset. The concordance correlation coefficient (CCC) was adopted to test the concordance between the RumiWatch sensor and video observation. The RumiWatch sensor performed well in counting prehension bites (CCC = 0.98), eating chews (CCC = 0.95) and rumination chews (CCC = 0.96), while it showed an acceptable concordance in counting mastication chews with video observation (CCC = 0.77). Moderate correlations were found between eating chews and daily milk production: daily milk production (kg/day) = 0.001151 × eating chews (chews/day) − 11.73 (R2 = 0.31; standard error (SE) = 8.88; p = 0.011), and between mastication chews and daily milk production: daily milk production (kg/day) = 0.001935 × mastication chews (chews/day) + 2.103 (R2 = 0.34; SE = 8.70; p = 0.007). Overall, the results indicated that the RumiWatch sensor can be confidently used to quantify and differentiate prehension bites, eating chews and rumination chews; in addition, ingestive behaviours explained up to 34% of the variation in milk production.

EFFECTS OF STAGE OF MATURITY OF TIMOTHY HAY AND CONCENTRATE SUPPLEMENTATION ON PERFORMANCE OF LACTATING DAIRY COWS

1980 ◽  
Vol 60 (2) ◽  
pp. 511-521 ◽  
Author(s):  
C. VINET ◽  
R. BOUCHARD ◽  
G. J. ST-LAURENT
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Dry Matter ◽  
Sole Source ◽  
Concentrate Supplementation ◽  
Boot Stage ◽  
Lactating Dairy Cows ◽  
Gross Energy ◽  
Daily Milk Production ◽  
Daily Milk

The effects of concentrate supplementation of timothy hay cut at the late-boot and early-bloom was tested with dairy cows during two feeding and two digestibility trials. The diets for each trial contained the following hay to concentrate ratios: 100:0, 85:15, 70:30 and 55:45. Daily dry matter intake and fat-corrected milk production, respectively, were 15.1, 16.8, 18.6, 19.4 kg; 16.7, 20.7, 23.1, 21.0 kg for the four diets containing early-cut timothy hay and 11.0, 14.7, 17.2, 19.8 kg; 8.4, 10.7, 13.3 and 15.9 kg for the late-cut timothy hay. Percent digestibilities of the four diets containing early-cut and late-cut timothy hay, respectively, were 65.6, 65.6, 66.9, 66.8 and 53.6, 53.6, 60.2, 62.9 for dry matter; 62.5, 63.7, 65.2, 65.3 and 24.0, 39.3, 53.3, 60.0 for nitrogen; 70.3, 70.3, 68.4, 67.8 and 53.7, 53.4, 60.1, 62.6 for gross energy; 66.4, 65.3, 67.1, 66.6 and 55.0, 54.5, 61.4, 63.5 for cell wall constituents; 68.2, 65.8, 64.9, 63.4 and 50.8, 48.2, 52.7, 52.1 for acid detergent fiber. Timothy hay cut at late-boot stage as sole source of feed supported a daily milk production of 16.7 kg compared to 15.9 kg for cows consuming timothy hay cut at late-bloom stage supplemented with 9 kg of concentrate.

scholarly journals Feeding Models to Optimize Dairy Feed Rations in View of Feed Availability, Feed Prices and Milk Production Scenarios

2020 ◽  
Vol 13 (1) ◽  
pp. 215
Author(s):  
Othman Alqaisi ◽  
Eva Schlecht
Keyword(s):  
Milk Production ◽  
Dairy Production ◽  
Feed Ingredients ◽  
Feed Resources ◽  
Ch4 Production ◽  
Feed Cost ◽  
Feed Costs ◽  
Daily Milk Production ◽  
The Impact ◽  
Daily Milk

In the global dairy production sector, feed ingredient price and availability are highly volatile; they may shape the composition of the feed ration and, in consequence, impact feed cost and enteric methane (CH4) emissions. The objective of this study is to explore the impact of changes in feed ingredients’ prices and feed ingredients’ availability on dairy ration composition, feed cost and predicted methane yield under different levels of milk production. To meet the research aim, a series of multi-period linear programming models were developed. The models were then used to simulate 14 feed rations formulations, each covering 162 months and three dairy production levels of 10, 25 and 35 kg milk/d, representing a total of 6804 feed rations altogether. Across milk production levels, the inclusion of alfalfa hay into the feed rations declined from 55% to 38% when daily milk production increased from 10 to 35 kg, reflecting the cows’ increased energy requirements. At a daily milk production level of 35 kg, CH4 production (per kg milk) was 21% and 53% lower than in average and low milk producing cows, respectively, whereas at 10 kg of milk production the potential to reduce CH4 production varied between 0.6% and 5.5% (average = 3.9%). At all production levels, a reduction in CH4 output was associated with an increase in feed costs. Overall, and considering feeding scenarios in low milk producing cows, feed cost per kg milk was 30% and 37% higher compared to that of average and high milk production, respectively. The feed ration modeling approach allows us to account for the interaction between feed ingredients over time, taking into consideration volatile global feed prices. Overall, the model provides a decision-making tool to improve the use of feed resources in the dairy sector.

scholarly journals Biochemical processes in cows and the biological value of milk under influence of cobalt citrate

2017 ◽  
Vol 19 (74) ◽  
Author(s):  
M. Khomyn ◽  
I. Kovalchuk ◽  
S. Kropyvka ◽  
M. Tsap
Keyword(s):  
Milk Production ◽  
Total Protein ◽  
Dry Matter ◽  
Inorganic Phosphorus ◽  
Animal Blood ◽  
Biological Value ◽  
Biochemical Processes ◽  
Mineral Supplements ◽  
Daily Milk Production ◽  
Daily Milk

The aim of research was to study the effect of different amounts of cobalt citrate produced by nanotechnology on biochemical processes in cows, their productivity and biological value of milk in the first two months of lactation. To achieve this goal the subsequent problems have been solved. We investigated the effect of different amounts of cobalt citrate on biochemical parameters of blood and milk of cows and controlled their average daily yield. The experiment has been conducted in 3 groups of cows (5 cows each) of Ukrainian black and white dairy cattle, analogue by body weight (590–620 kg), performance (6,5–6,8 thousand kg of milk per past lactation) and lactation (3–4 lactation). Unlike the control cows, animals experimental (ІІ) group for two months were fed by mineral supplements in the form of cobalt citrate in an amount of 19 mg Co/kg of dry matter of diet and research (ІІІ) – cobalt citrate in an amount of 34 mg Co/kg of dry matter of diet. Duration of cobalt citrate feeding of cows of research groups was 2 months. In all groups of cows the samples of venous blood were taken in preparation for feeding additives period and during 60 day of additives feeding period in order to determine the concentration of total protein, ceruloplasmin, sialic acids, hexoses bound to proteins and activity of amino transferases. The milk production has been controlled in days of sampling with the definition of daily milk yield per cow and taking an average sample for the determination of milk fat, protein, lactose, inorganic phosphorus and calcium. It has been established that the inclusion in the diet of cows of experimental (ІІ) group of mineral supplements contributed to an increase in animal blood total protein content by 11.9% (P < 0.05), inorganic phosphorus by 15.3% (P < 0.05) and hexoses bound protein by 8.8% (P < 0.05). Under these conditions milk content of inorganic phosphorus increased by 5.6% (P < 0.05) and average daily milk production increased by 4.5%. The use of mineral additives in third experimental group of animals within two months contributed to an increase in blood ceruloplasmin content by 5.1% (P < 0.05) and hexoses bound protein by 11.5% (P < 0.01). Mineral supplements promote 5.4% raise of average daily milk production and increase it to the lactose content by 0.10% (in absolute).

scholarly journals Yield and chemical composition of milk of grazing and supplemented Tropical Milking criollo cows

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Adalberto Rosendo Ponce ◽  
Adrián Sánchez Gómez ◽  
Ángel Ríos Ortíz ◽  
Glafiro Torres Hernández ◽  
Carlos Miguel Becerril Pérez
Keyword(s):  
Chemical Composition ◽  
Milk Production ◽  
Dry Matter ◽  
Daily Production ◽  
Commercial Feed ◽  
Multiplicative Effect ◽  
Increase Milk Production ◽  
Daily Milk Production ◽  
Brachiaria Mutica ◽  
Daily Milk

Milk production under grazing conditions is carried out in the intertropical region of hot climates due to its low production cost. The Tropical Milking criollo breed (LT) is characterized by its hardiness in this region, and its high milk quality and cheese yield. Grazing supplementation can increase milk production; however, it can also change its chemical composition. The effect of supplementation with commercial feed in LT cows was evaluated concerning the quantity and physicochemical traits of their milk by lactation. The treatments used were feeding based only on grazing para grass (Brachiaria mutica) and grazing plus 1 kg supplementation with 20 % protein commercial feed for every 5 kg of milk produced daily. The daily milk production per cow increased from 5.82 ± 0.18 to 7.10 ± 0.18 kg due to supplementation. Dry matter intake was similar in both treatments. The concentration of fat, protein, lactose, non-fat, and total solids did not suffer modifications (p > 0.05), but the daily production of each component per cow increased in animals supplemented due to the multiplicative effect of the amount of milk. The number of calvings affected milk production, fat, and ureic nitrogen in milk, and somatic cell count (p ≤ 0.05). It can be concluded that the supplementation used in this study was enough to increase milk production by 22 %, without modifying its chemical composition.

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.

scholarly journals Effects of Calliandra and Sesbania on Daily Milk Production in Dairy Cows on Commercial Smallholder Farms in Kenya

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
D. N. Makau ◽  
J. A. VanLeeuwen ◽  
G. K. Gitau ◽  
S. L. McKenna ◽  
C. Walton ◽  
...  
Keyword(s):  
Milk Production ◽  
Dairy Farms ◽  
Protein Supplementation ◽  
Smallholder Farms ◽  
Study Objective ◽  
Final Model ◽  
Smallholder Dairy ◽  
Daily Milk Production ◽  
Daily Milk ◽  
Smallholder Dairy Farms

There is a growing interest in protein supplementation of dairy-cow diets using leguminous shrubs. The study objective was to ascertain the association between diet supplementation with Calliandra calothyrsus and Sesbania sesban and milk production in dairy cattle on commercial smallholder farms. This trial involved 235 cows from 80 smallholder dairy farms in Kenya randomly allocated to 4 intervention groups: (1) receiving Calliandra and Sesbania and nutritional advice; (2) receiving reproductive medicines and advice; (3) receiving both group 1 and 2 interventions; and (4) receiving neither intervention. Farm nutritional practices and management data were collected in a questionnaire, and subsequent physical examinations, mastitis tests, and milk production of cows on the farm were monitored approximately monthly for 16 months. Descriptive and univariable statistical analyses were conducted, and multivariable mixed-model regression was used for identification of factors associated (P<0.05) with daily milk production. The mean milk production was 6.39 liters/cow/day (SD = 3.5). Feeding Calliandra/Sesbania to cows was associated (P<0.0005) with an increase in milk produced by at least 1 liter/cow/day with each kg fed. Other variables positively associated with ln daily milk production in the final model included feeding of Napier grass, amount of silage and dairy meal fed, body condition score, and appetite of the cow. Other variables negatively associated with ln daily milk production in the final model included amount of maize germ fed, days in milk, sudden feed changes, pregnancy, and subclinical mastitis. In conclusion, our field trial data suggest that use of Calliandra/Sesbania through agroforestry can improve milk production in commercial smallholder dairy farms in Kenya. Agroforestry land use systems can be adopted as a way for dairy farmers to cope with feed shortages and low crude protein in farm-available feeds for their cows.

scholarly journals Short-term rate of milk synthesis and expression interval of preterm mothers

2019 ◽  
Vol 105 (3) ◽  
pp. 266-269 ◽  
Author(s):  
Ching Tat Lai ◽  
Alethea Rea ◽  
Leon R Mitoulas ◽  
Jacqueline C Kent ◽  
Karen Simmer ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Milk Production ◽  
P Value ◽  
Inverse Association ◽  
Short Term ◽  
Start Time ◽  
Daily Milk Production ◽  
The Impact ◽  
Maximum Interval ◽  
Daily Milk

AimTo determine the impact of the pumping regimes of women with preterm infants on the daily milk production, and on the short-term rate of milk synthesis during early lactation to support evidence-based recommendations for optimising milk production.MethodsMothers of preterm infants (n=25) recorded start time, finish time and expression volumes from every breast expression on days 10, 15–20 postpartum.ResultsExpressing more often than five times per day did not result in a significant increase in daily milk production. Milk volume per expression per breast increased for intervals between expressions of between 2and6 hours then reached a plateau when the interval between expression was 7 hours or longer. The short-term rate of milk synthesis decreased as the interval between expressions increased until about 7.5 hours at which point it begun to increase (p value associated with interval between expressions^2<0.001).ConclusionThe strong inverse association between the short-term rate of milk synthesis and the interval between expressions for intervals up to 7 hours suggest that the maximum interval between expressions should be 7 hours. Data suggest that, on average, the mothers should express at least five times a day to maximise daily milk production. Considering inter-individual variation, determination of an individual mother’s maximum interval between expressions that does not compromise the short-term rate of milk synthesis will help to optimise daily milk production while minimising the demands on the mother’s time.

Statistical research on the fate of dietary mineral elements in dry and lactating cows IV. Chloride

1969 ◽  
Vol 73 (2) ◽  
pp. 223-229 ◽  
Author(s):  
R. Paquay ◽  
F. Lomba ◽  
A. Lousse ◽  
V. Bienfet
Keyword(s):  
Milk Production ◽  
Dry Matter ◽  
Mineral Elements ◽  
Statistical Research ◽  
Lactating Cows ◽  
Chloride Excretion ◽  
Daily Milk Production ◽  
Very High ◽  
Matter Energy ◽  
Daily Milk

SUMMARYStatistical analyses were carried out on the data obtained under very strict conditions in metabolism stalls with 41 different rations fed to 127 adult non-pregnant dry cows, and with 14 other different rations fed to 35 adult non-pregnant lactating cows that had calved 2–6 months earlier and whose daily milk production ranged from 11 to 20 kg.The authors have calculated and studied the correlations between faecal and urinary losses of chloride, chloride excretion with the milk, digestible chloride and chloride balance and many other nutritive factors which were analysed for each of the 55 above mentioned experimental diets.The results show that the digestion and utilization of chloride is not influenced by the amount of ingested chloride at the time of the trial. The digestion is generally very high, negatively correlated with dry matter, energy, and pentosans intakes, and positively with nitrogen and potassium intakes. But the most important factor in the fate of dietary chloride seems to be the necessity for the cow to eliminate most of the time high amounts of potassium in the urines.

Pemberian silase, complete feed, dan growth promoter pada sapi perah kawin berulang terhadap Services per Conception dan produksi susu

2020 ◽  
Vol 9 (2) ◽  
pp. 28
Author(s):  
Suherni Susilowati ◽  
Wurlina Wurlina ◽  
Sri Mulyati ◽  
Suzanita Utama ◽  
Dewa Ketut Meles
Keyword(s):  
Milk Production ◽  
Control Group ◽  
Growth Promoter ◽  
Growth Promoters ◽  
Dairy Farmers ◽  
Holstein Friesian ◽  
Reproductive Disorder ◽  
Daily Milk Production ◽  
Repeat Breeder ◽  
Daily Milk

Repeat breeding is a reproductive disorder that harms dairy farmers because of the unachieved target to obtain one calf per year and decreased milk production. The repeat breeding syndrome can be caused by malnutrition. This study aimed to determine the effect of feeding silage, complete feed, and growth promoters in repeat breeder cows to restore the services per conception (S/C) and daily milk production. Thirty repeat breeder Holstein Friesian cows were divided randomly into three groups. The control group (P0) was fed 30-40 kg forage and 3-4 kg concentrate/head/day. Group P1 was given 8-10 kg silage or complete feed alternately every day; whereas P2 was given the same as for the P1 group, added with 10 ml growth promoter/head/day. Milk production and S/C were measured after six months of treatment. The results showed that the P1 and P2 groups returned S/C to normal (1.40 ± 0.52 and 1.30 ± 0.48), while the S/C of P0 group was 3.20 ± 0.63 (p <0.05). Daily milk production in the P1 and P2 groups (14.20 ± 1.40 and 14.60 ± 1.43 l/d) was also higher (p <0.05) than the control group (8.30 ± 1.06 l/d). It could be concluded that feeding silage and complete feeds alternately daily, with or without the addition of growth promoter, improved the S/C to the normal range and increased milk production.

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