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Search Results: 1 - 10 of 11250 matches for " milk production. "
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Milk Production Trend of Milk Vita Throughout the Year
M. A. K Azad,M. Hasanuzzaman,G. Miah,B. K. Roy
Pakistan Journal of Nutrition , 2002,
Abstract: The present research work was undertaken to identify the quality milk production trend of Bangladesh Milk Production Co-operative Union Ltd. (Milk Vita) throughout the year. To achieve the objectives relevant data were collected during the period from January 1995 to December 1999 at different Milk Shed Area (MSA) of Milk Vita. Milk production trend of Baghabarighat and Takerhat MSA was differed significantly (p<0.01) among different months of each year during the experimental period and the average values of milk production of different years (1995-1999) were also differed significantly at 5 and 1% respectively. In Sree-Nagor, Manikgonj, Rangpur and Tangail MSA, milk production of each year differs significantly (p<0.01) and the average milk production values of different years did not differed significantly among different months of each year. From the mean values of five years record it was observed that milk production (TL/day) of Baghabarighat, Takerhat, Sree-Nagor, Manikgonj, Rangpur and Tangail MSA was 53.29, 4.19, 2.19, 2.47, 3.30 and 1.15 respectively. It was also revealed that the highest milk production was in February (10.01%) and lowest in September (6.46%) and milk production gradually increased from September to February which was indicated a specific milk trend throughout the year of Milk Vita. Fat and Solids-not-fat (SNF) production was little highest in December to April in Banghabarighat but same trend was not seen in all MSAs. From this study, it may be concluded that year round milk production of Milk Vita as well as Bangladesh were 9.97, 10.01, 9.20, 8.59, 8.17, 8.37, 7.27, 6.50, 6.46, 6.86, 8.73 and 9.88% respectively.
Effect of Feeding a Combination of Zinc, Manganese and Copper Methionine Chelates of Early Lactation High Producing Dairy Cow  [PDF]
Ghada Mostafa El Ashry, Ayman Abdel Mohsen Hassan, Soliman Mohamed Soliman
Food and Nutrition Sciences (FNS) , 2012, DOI: 10.4236/fns.2012.38144
Abstract: The objective of the study was to compare the effect of feeding mixed chelated minerals (Mn, Cu and Zn) methionine on dairy cow productive performance and milk yield and its components. The trial was conducted with dairy cows across various stage of lactation. The experimental treatments include chelated minerals (15 mg Zn as Zn Met, 20 mg Mn as Mn Met, 10 mg Cu as Cu Met). Inorganic mixture contains (15 mg Zn as ZnSO4, 20 mg Mn as MnSO4, 10 mg Cu as CuSO4) in sulphate forms. The experiment was commenced in the dry period of cows, 6 weeks before calving, and after calving the first three months of lactation was taken into consideration. Milk samples were collected from each cow evening and morning for estimation of milk yield production. The inorganic metals caused a significant decline (P < 0.05) in digestibility coefficients, nutritive value, nitrogen utilization, Cell wall constituents, total VFA’s, rumen volume, microbial and nitrogen synthesis compared to the organic metals. The treated group (chelated minerals) improved the milk yield, and the milk fat percentage of animals across various stages of lactation as compared to inorganic minerals treated group of animals, and no significant differences were observed among groups concerning the entire blood constituent.
How to Improve Dairy Production in Brazil through Indicators for the Economic Development of Milk Chain  [PDF]
Marcelo T. Okano, Oduvaldo Vendrametto, Osmildo Sobral dos Santos
Modern Economy (ME) , 2014, DOI: 10.4236/me.2014.56062
Abstract:

Dairy production in Brazil is an important activity of the agricultural sector and it has a vital role in the economic and social development process of the country. Brazil fluid milk consumption is estimated at 177 liters per capita per year. Consumption of fluid milk is forecasted to increase around 2 percent in 2013. The increase is derived mostly from an estimated increase in industrial use, supported by higher disposable consumer income. Milk drink products in Brazil are not only expanding in volume but also gaining in sophistication and health orientation. Brazil is considered as the top flavored milk drink market in Latin America. The lack of vision and understanding of the production chain as a whole, eventually led to an asymmetric behavior, in some situations, resulting in losses along the production process, often justifying the dissatisfaction of producers. The differences in type of producers, technology standards, low investments, the profile of traditional estates, owners resistance to changes, cultural barriers and distrust lead to unbalance of the estate productivity and the disorganization of the supply chain. The present study proposes an investigation and classification of the dairy chain to demonstrate that it is possible to organize the estates of the dairy chain, using indicators to rank them, modeling best practices to improve productivity and become a sustainable productive chain.

Productive Response of Dairy Cows Fed with Different Levels of Totally Mixed Ration and Pasture  [PDF]
Eloy Eduardo Salado, Gustavo Bretschneider, Alejandra Cuatrin, Adriana María Descalzo, Gerardo Antonio Gagliostro
Agricultural Sciences (AS) , 2018, DOI: 10.4236/as.2018.97058
Abstract: Forty multiparous Holstein cows in early lactation (66 ± 19 days) were assigned to one of four treatments that consisted in different ratios of total mixed rations (TMR) and pasture at 100% TMR (T0), 75:25 (T1) 50:50 (T2) and 25:75 (T3) over 9 weeks in autumn-winter. Measures of rumen parameters and digestion were performed on 4 additional Holstein cows in late lactation (287 days postpartum) fitted with permanent ruminal fistulae and producing 22.6 (±5.4) kg milk in a 4 × 4 Latin Square design. In T1 to T3 cows were taken to the grazing plot once they finished the pre-planned TMR intake and pasture was offered at 2 times the expected forage DM intake. Milk was analyzed for chemical composition, milk fatty acid (FA) profile and antioxidant compounds. The cows were individually weighed and body condition score (BCS) was determined. After the morning milking, blood samples were taken every 2 weeks and plasma was analyzed for glucose, urea, non-esterified fatty acids (NEFA), insulin, growth hormone (GH) and insulin-like growth factor (IGF-I). Herbage mass in pre grazing strips of pasture averaged 2540 ± 343 kg DM/ha. As TMR intake increased, production variables increased linearly excepting milk fat (3.88 g/100g) and milk protein (3.43 g/100g) contents that were not affected. Milk yield (kg/cow/d) resulted maximal in T0 (34.2) and linearly decreased (p < 0.01) with pasture intake averaging 32.1 (T1), 28.4 (T2) and 26.8 (T3) as a higher energy intake and a lower energy cost associated with grazing activity. Milk fat output (kg/cow/d) resulted higher in T0 (1.35) and T1 (1.25) compared to T2 (1.10) and T3 (1.04). Milk protein yield (kg/cow/d) was also higher in T0 (1.18) and T1 (1.11) compared to T2 (0.96) and T3 (0.92). Total DM (24.09 kg/cow/d) and energy (41.95 Mcal NEL/cow/d)) intakes resulted maximal in T0 decreasing as pasture replaced TMR without effects on conversion efficiency (1.48 kg milk/kg DM). Plasma concentration of glucose, insulin and IGF-I were not affected but GH and NEFA increased as pasture replaced TMR in T3. Ruminal pH (5.91) and total or VFA proportions did not differ but NH3-N concentration resulted higher in treatments with higher proportion of pasture. Kinetic parameters of DM and NDF digestion from pasture or corn silage were not affected. Milk FA profile and milk antioxidant quality showed unfavorably changes as TMR increased by a decrease in rumenic and linolenic acids and content of antioxidant vitamins, without effect on the atherogenicity index. Results suggested a depressing effect of the pasture on total DM
Milk flow traits of buffalo cows in intensive farming system
L. Bava,A. Sandrucci,A. Tamburini,M. Zucali
Italian Journal of Animal Science , 2010, DOI: 10.4081/ijas.2007.1s.500
Abstract: The particular morphology of buffalo udder is associated to milking difficulties. To better understand the characteristics of milk ejection in buffaloes, a study was conducted in an intensive farm in Lombardy, Italy. A total of 184 milk flow profiles were measured with an electronic flow meter. The results showed that during the first 3 minutes of milking 73% of total milk yield was milked; lag time of milk ejection (1.94 min ± 1.57) was very long and increased significantly with the increasing of lactation stage. The overmilking phase has also a long duration (33% of total milking time, on average). Administration of oxytocin before milking did not significantly affect milk flow parameters and machine on-time. The results suggested that proper pre-milking stimulation and prompt cluster takeoff could improve milking efficiency, ensuring good milk letdown and protecting teat conditions.
Function Analysis of Milk Yield on Small Holder Dairy Cattle in Sumbang Banyumas Region
siswadi,yusuf subagyo,Triana yuni astuti
Journal of Animal Production , 2001,
Abstract: A survey on smallholder dairy cow had conducted in Banyumas region from November 8th 1999 up to February 8th 2000. Forty six respondents were involved in this study (as samples). Cobb - Douglas analysis was applied in this survey. From the study can be concluded that a small holder owned 3.02 heads of dairy cow (2.2 ST), 1.44 heads of lactating cow with 9.77 L/day milk production on average. The benefit of the backyard farming was RP.70.603,225 per month on average. Feeding was the biggest influence on benefit because feed cost was 65.81 percent from the production cost. The milk production function , by the equation: Y = 0,8958 X1 · 332 X2 0.049 X30.168 X40.608 The four variables can explain 92.4 percent (R2=0,924)on the milk production variation .It can be suggested that to improve milk production on dairy cows can be done by intensifying labour, and improving the forage feeding. (Animal Production 3(1): 12-19 (2001)
Efeitos da lasalocida sódica e da propor??o concentrado/volumoso sobre o desempenho produtivo de vacas lactantes
LUCCI, Carlos de Sousa;RODRIGUES, Paulo Henrique Mazza;MELOTTI, Laércio;
Brazilian Journal of Veterinary Research and Animal Science , 1999, DOI: 10.1590/S1413-95961999000100010
Abstract: four crossbred holstein 2 month lactating cows with 470 kg of average live-weight, fitted with rumen canulas, were used in a change over design, in a 2 x 2 factorial arrangement with four treatments: without or with sodium lasalocid (200 mg/cow/day); and two concentrate/roughage ratios: 30%-70% and 60%-40%. milk and fat production, dry matter consumption, ruminal ph and liquid turnover rates were measured. lasalocid resulted in higher but not statistically significant increase in milk production with the 70% roughage diet. rich concentrate diets (60%) resulted in higher, but not statistically significant, dry matter consumption; these diets increased milk, fat corrected milk and milk protein production, and decreased fat milk production, as well as the ruminal ph at 6 hours after the first meal.
Efeito da substitui??o do farelo de soja pela amiréia 150S no consumo, produ??o e composi??o do leite
Vilela, Flávio Garcia;Teixeira, Júlio César;Pérez, Juan Ramon O.;Paiva, Paulo César de Aguiar;Muniz, Joel Augusto;Reis, Sidnei Tavares;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000500036
Abstract: twelve dairy cows (3/4 hoslten x 1/4 gir) were used in a desing in latin square, at fazenda raposo's dependences in nepomuceno, mg, between november of 2001 and april of 2002 to compare the effect of the partial and total substitution of soybean meal for starea in the production and composition of milk. the medium weight of the animals was 443 kg and they were in the fourth nursing. the starea substituted soybean meal in the following proportions: 0 - 0% of starea 150 s; 33 - 33¨% of starea 150 s; 66 - 66% of starea 150 s and 100 - 100% of starea 150 s, and every treatments were isoenergetics and isoproteics. sugar-cane (saccharum officinarum l.) was used ad libitum as roughage. each experimental period had the duration of 15 days being 9 days for adaptation and 6 days for collection of data. the milk production of each cow was weighed twice a day (morning and afternoon) and samples were sent for analysis of fat, protein, lactose, total solids and urea, by the infrared method, at the clinic of the milk of the department of animal production at esalq/usp, in piracicaba, sp. fat and total solids of milk were not influenced by the treatments. the production of milk, protein, lactose and urea content of milk differed among the treatments (p<0.05). the results showed that it is viable the total substitution of soybean meal for starea.
Nota técnica: Producción de leche con ensilaje de hollejo de cítrico
Montejo,I.L; Lamela,L; Sánchez,Tania; López,O;
Pastos y Forrajes , 2008,
Abstract: ninety tons of citrus pulp silage were elaborated with the objective of evaluating their effect on milk production in medium potential cows. the silages were made by means of the technology of successive layers; the conservation time was prefixed at 60 days. the measurements were: dm, cf, cp, n-nh3/nt (%) and ph. six f-2 (75% holstein x 25% zebu) cows were used, distributed in a switch back design for studying the following diets: a) grazing ad libitum (16 hours); and b restricted grazing (8 hours) plus silage (90% citrus pulp plus 10% sugarcane bagasse) ad libitum. both treatments received 0,5 kg of commercial concentrate at milking. the stocking rate was 1,1 cows/ha and only one milking a day was performed in the morning hours. the silage intake (humid base) was 13,9 kg/animal/day (treatment b) and significant difference was found (p<0,05) for milk production between treatments a (7,3 kg/cow/day) and b (6,4 kg/cow/day); however, no variations were observed in the percentages of fat, crude protein, non fatty solids and total solids; a change in the body condition of the animals was not observed either during the whole experiment. it is concluded that the addition of bagasse allowed to preserve the citrus pulp in the form of good quality silage (cp 6,5% and ph 3,7) and the milk production was 6 kg/cow/day.
Influência de ventila??o e aspers?o em sistemas de sombreamento artificial para vacas em lacta??o em condi??es de calor
N??s, Irenilza de A.;Arcaro Júnior, Irineu;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2001, DOI: 10.1590/S1415-43662001000100026
Abstract: the present research was carried out at animal science institute, in s?o paulo and had the objective of evaluating three different types of cooling systems (physical) to reduce thermal stress for milking cows. the tested treatments used artificial shade using a propylene screen 80% direct solar radiation reduction; the same shade using a 0.5 hp fan; and the same shade structure using a 0.5 hp fan with fogging system. eighteen milking cows were used in the treatments - 12 holstein cows and 6 brown swiss - equally distributed in the treatments according to their age and milk production level. the parameters analyzed were: milk production and fat content, body temperature, respiratory frequency, and cardiac frequency. environmental parameters measured were: dry bulb, black globe temperature and relative humidity, collected in each treatment and at a meteorological station at a nearby site. the results showed that the best treatment was the shade using forced ventilation associated with a fogging system.
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