scholarly journals Sources of Variation Affecting the Difference Between Morning and Evening Daily Milk Production

1970 ◽  
Vol 53 (10) ◽  
pp. 1424-1429 ◽  
Author(s):  
R.W. Everett ◽  
L.H. Wadell
Keyword(s):  
Milk Production ◽  
Sources Of Variation ◽  
The Difference ◽  
Daily Milk Production ◽  
Daily Milk

scholarly journals Milk Production of Holstein Friesian Dairy Cows in Various Lactation Periods (Case Study at Capita Farm, Semarang, Central Java)

JURNAL TERNAK ◽  
2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Rudy Hartanto ◽  
Alvian Adhi Pamungkas ◽  
Edi Prayitno ◽  
Dian Wahyu Harjanti
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
The Body ◽  
Lactation Period ◽  
Central Java ◽  
Holstein Friesian ◽  
The Difference ◽  
Daily Milk Production ◽  
Materials Used ◽  
Daily Milk

The purpose of this research was to determine and to assess the milk production of Holstein Friesian cows in Capita Farm based on its lactation period. The research was conducted on 29thSeptember – 28thOctober 2019. The materials used in the study were 59 FH dairy cows in the lactation period of 1-6 and lactation months of 1-10. The body weight was 497.71 ± 44.73 kg and the milk production was 14.43 ± 4.43 liters / day / head. The study was conducted by observation. The parameters observed were the lactation period and daily milk production. Afterward, the daily milk production was converted into milk production in one lactation period. The difference in milk production of one lactation period between the lactation periods was determined by the independent sample t test at level of 5%. The results of this research showed that the peak production in the 4th lactation period was 4458.26 liter/lactation, while the 1st, 2nd, 3th, 5th, 6th lactation periods were 3976.85; 4100.01; 4143.85; 3850.27; 2938.56 liter/lactation, respectively. The 6th lactation period was significantly lower than the others withproduction capability of 65.91% of the mature equivalent (ME). It was concluded that the Holstein Friesian dairy cows inCapita Farm has the highest production in the 4th lactation period, but there is a real difference in production when it enters the 6thperiod.

scholarly journals Milk Production of Holstein Friesian Dairy Cows in Various Lactation Periods (Case Study at Capita Farm, Semarang, Central Java)

JURNAL TERNAK ◽  
2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Rudy Hartanto ◽  
Alfian Adhi Pamungkas ◽  
Edi Prayitno ◽  
Dian Wahyu Harjanti
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
The Body ◽  
Lactation Period ◽  
Central Java ◽  
Holstein Friesian ◽  
The Difference ◽  
Daily Milk Production ◽  
Materials Used ◽  
Daily Milk

The purpose of this research was to determine and to assess the milk production of Holstein Friesian cows in Capita Farm based on its lactation period. The research was conducted on 29thSeptember – 28thOctober 2019. The materials used in the study were 59 FH dairy cows in the lactation period of 1-6 and lactation months of 1-10. The body weight was 497.71 ± 44.73 kg and the milk production was 14.43 ± 4.43 liters / day / head. The study was conducted by observation. The parameters observed were the lactation period and daily milk production. Afterward, the daily milk production was converted into milk production in one lactation period. The difference in milk production of one lactation period between the lactation periods was determined by the independent sample t test at level of 5%. The results of this research showed that the peak production in the 4th lactation period was 4458.26 liter/lactation, while the 1st, 2nd, 3th, 5th, 6th lactation periods were 3976.85; 4100.01; 4143.85; 3850.27; 2938.56 liter/lactation, respectively. The 6th lactation period was significantly lower than the others withproduction capability of 65.91% of the mature equivalent (ME). It was concluded that the Holstein Friesian dairy cows inCapita Farm has the highest production in the 4th lactation period, but there is a real difference in production when it enters the 6thperiod.

scholarly journals Ad Libitum Feeding of Either a Complete Ration Based on Sugarcane Bagasse or a Conventional Concentrates Mixture to Dairy Cows

1969 ◽  
Vol 54 (3) ◽  
pp. 429-438
Author(s):  
Paul F. Randel
Keyword(s):  
Milk Production ◽  
Sugarcane Bagasse ◽  
Milk Fat ◽  
Fat Percentage ◽  
Total Solids ◽  
Ad Libitum ◽  
The Difference ◽  
Daily Milk Production ◽  
Daily Intakes ◽  
Daily Milk

Two feeding regimes were compared using 13 lactating cows (11 Holstein- Fresian and two Brown Swiss) confined in corrals. The rations consisted of a conventional concentrates mixture and sorghum silage in treatment A, and of 22.5 percent sugarcane bagasse mixed with 20.0 percent molasses and 57.5 percent other concentrates (complete ration) in treatment B. The experimental design was a double-reversal with 10-week periods, each divided into a 3-week adjustment and a 7-week comparison phase, preceded by a 25-day preliminary period. During the 7 weeks of the comparison phase of the first of the three experimental periods, five cows on treatment A averaged 37.0 pounds of concentrates and 30.5 pounds of silage consumption daily, while eight cows on treatment B consumed an average of 48.0 pounds of the complete ration. Average daily milk production with these respective rations during the comparison phase in question was 53.1 and 56.9 pounds. No significant differences between treatments were found. Over the three experimental periods of the double-reversal, daily intakes averaged 36.6 pounds of conventional concentrates mixture, 30.2 pounds of silage, and 45.1 pounds of complete ration. On treatments A and B, daily milk production averaged 48.6 and 47.4 pounds; milk fat percentage, 2.85 and 3.23; milk solids-notfat percentage, 9.08 and 9.03; milk total solids percentage, 11.92 and 12.26; milk protein percentage, 3.53 and 3.43; and daily liveweight gain, 1.15 and 1.01 pounds, respectively. The difference between treatment means was significant for milk fat (P < .01) and milk total solids (P < .05) percentages. Since the complete ration resulted in productive performance comparable to that obtained with ad libitum consumption of conventional concentrates, it is concluded that the former is capable of sustaining milk production at nearly maximum capacity. Milk production on treatment B was also equal to that obtained in a previous experiment with a complete ration containing 7.5 percent less bagasse and 5.0 percent less molasses, and correspondingly higher proportions of soybean meal and shelled corn.

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.

Milk yield responses by dairy cows in mid-lactation to changes in feeding levels

1988 ◽  
Vol 28 (4) ◽  
pp. 447 ◽  
Author(s):  
C Grainger
Keyword(s):  
Energy Intake ◽  
Milk Production ◽  
Milk Yield ◽  
Feeding Level ◽  
Metabolisable Energy ◽  
The Difference ◽  
Daily Intakes ◽  
Yield Responses ◽  
Daily Milk Yield ◽  
Daily Milk

The reduction in milk production following a decrease in feeding level was compared with the increase in milk following an increase in feeding level of cows. Forty cows in their 5th month of lactation were allocated to 2 groups and offered either ad libitum pasture or restricted in their grazing so that, after 32 days, the difference in daily milk yield between the groups averaged 3 L/cow. Cows in each group were then offered cut pasture in stalls for 4 weeks to obtain mean daily intakes of either 14.4 or 10.2 kg DM/ cow The reduction in yield of milk energy (0.133 MJ/MJ metabolisable energy intake) following the decrease of intake from 14.4 to 10.2 kg DM/cow.day was similar to the increase in yield of milk energy (0.140 MJ/MJ metabolisable energy intake) following an increase in intake from 10.2 to 14.4 kg DM/cow.day. We conclude that, for cows in mid-lactation, the decrease in milk production following a decrease in feeding level is similar to the increase in milk production following an increase in feeding level. This implies that increases in milk production due to increased feeding can be predicted from experiments which measured reductions in milk production.

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.

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