scholarly journals The effect of the forage-to-concentrate ratio of the partial mixed ration and the quantity of concentrate in an automatic milking system for lactating Holstein cows

2018 ◽  
Vol 101 (11) ◽  
pp. 9941-9953 ◽  
Author(s):  
S.B. Menajovsky ◽  
C.E. Walpole ◽  
T.J. DeVries ◽  
K.S. Schwartzkopf-Genswein ◽  
M.E. Walpole ◽  
...  
Author(s):  
Д.Р. ШАРИПОВ ◽  
О.А. ЯКИМОВ ◽  
И.Ш. ГАЛИМУЛЛИН

Изучена технология дополнительного скармливания концентрированных кормов во время доения в условиях системы автоматизированного доения на коровах голштинской породы, разделенных на 6 групп по молочной продуктивности. Исследования показали, что с повышением молочной продуктивности в группах коров увеличивается количество выданных и потребленных концентратов. Аналогичная закономерность установлена по времени посещения доильной станции на количество потребления комбикорма, чем дольше коровы задерживаются в боксах доения, тем больше концентрированных кормов они потребляют. Животные всех групп неполностью съедают комбикорм, получаемый на станции доения, остатки концентратов от выданной нормы в группе коров с удоем менее 20,0 кг составили 8,3%, 20,1—25,0 кг — 3,6%, 25,1—30,0 кг — 5,9%, 30,1—35,0 кг — 8,9%, 35,1—40,0 кг — 7,9% и в группе с удоем более 40,1 кг — 7,5%. Анализ затрат концентрированных кормов,получаемых на станции доения, на 1 кг молока показал, что группы коров с удоем 35,1—40,0 и более 40,1 кг на 11,5—18,9% недополучают концентратов, обратная тенденция в группе коров с удоем 20,1—25,0 и менее 20,0 кг, которым для сохранения интереса к роботизированной установке требуется на 9,4—10,4% больше концентрированных кормов. The technology of additional feeding of concentrated feeds during milking under the conditions of an automatic milking system on Holstein cows, divided into 6 groups according to milk production, has been studied. Studies have shown that with an increase in milk production in the groups of cows, the amount of concentrates allocated and consumed increases. The influence of box-visiting time per milking on the amount of concentrate consumption has been established, the longer the cows stay in the milking boxes, the more concentrated feed they consume. Animals of all groups do not fully consume the compound feed obtained in the milking box, the remains of concentrates from the given norm in the group of cows with a milk yield of less than 20.0 kg was 8.3%, in the group of  20.1—25.0 kg — 3.6%, in the group of  25, 1—30.0 kg — 5.9%, in the group of 30.1—35.0 kg — 8.9%, in the group of 35.1—40.0 kg — 7.9% and in the group with a milk yield of more  40.1 kg — 7.5%. Analysis of the costs of concentrated feed per kg of milk received at the milking box showed that groups of cows with a yield of 35.1—40.0 and more than 40.1 kg at 11.5—18.9% do not receive concentrates, the opposite trend is a group of cows with a milk yield of 20.1—25.0 and less than 20.0 kg, which require 9.4—10.4% more concentrated feed to maintain interest in a robotic unit.


2006 ◽  
Vol 74 (1) ◽  
pp. 40-46 ◽  
Author(s):  
Alex Bach ◽  
Martí Dinarés ◽  
Maria Devant ◽  
Xavier Carré

A longitudinal study involving 73 primiparous (PP) and 47 multiparous (MP) Holstein cows was conducted over an 8-month period to assess the associations between locomotion score (LCS) and milk production, dry matter intake (DMI), feeding behaviour, and number of visits to an automatic milking system (AMS). Twice weekly, all cows were locomotion scored (scale 1–5) by the same observer. Individual eating behaviour and individual feed consumption at each cow visit to the feed troughs, individual milk production, the time of milking, and the number of milkings for each cow were recorded for the day of locomotion scoring and the day before and after. Dependent variables, such as milk yield, DMI, etc. were modelled using a mixed-effects model with parity, LCS, days in milk (DIM), the exponential of −0·05 DIM, and the interaction between parity and LCS, as fixed effects and random intercepts and random slopes for the linear and the exponential of −0·05DIM effects within cow. LCS did not affect time of attendance at feed troughs, but affected the location that cows occupied in the feed troughs. The time devoted to eating and DMI decreased with increasing LCS. Milk production decreased with LCS>3. The number of daily visits to the AMS also decreased with increasing LCS. The cows with high LCS were fetched more often than the cows with low LCS. Overall, PP cows were more sensitive to the effects of increasing LCS than were MP cows. The decrease in milk production observed with increasing LCS seemed to be affected similarly by the decrease in DMI and by the decrease in number of daily visits to the AMS. A further economic loss generated by lame cows with AMS will be associated with the additional labour needed to fetch them.


2016 ◽  
Vol 19 (4) ◽  
pp. 96-100
Author(s):  
Jiří Ševčík ◽  
Daniel Falta ◽  
Kristina Somerlíková ◽  
Jiří Fryč

Abstract The objective of this study is to evaluate the impacts of teat traumatization on Holstein cows caused by two different types of milking systems (CMS – conventional milking system and AMS – an automatic milking system). The experiments were performed in two locations: at Žabčice School Farm of Mendel University in Brno and at ZEMAX, a. s. in Šitbořice. For the evaluation of the degree of traumatization, thermographic images depicting surface temperatures of teats were used. This paper tested the hypothesis that, at extreme conditions, the teat traumatization of Holstein cows does not depend on used milking system. The hypothesis was disproved by the performed monitoring. From statistical point of view, it was observed that there were significant differences depending on which milking system was used.


2015 ◽  
Vol 28 (5) ◽  
pp. 703-715 ◽  
Author(s):  
M. R. Islam ◽  
S. C. Garcia ◽  
C. E. F. Clark ◽  
K. L. Kerrisk

2009 ◽  
Vol 8 (sup2) ◽  
pp. 516-518 ◽  
Author(s):  
David Meo Zilio ◽  
Federico Vincenti ◽  
Silvia Ballico ◽  
Antonella Ficco ◽  
Antonella Juárez

1996 ◽  
Vol 1996 ◽  
pp. 78-78
Author(s):  
N.B. Prescott ◽  
T.T.F. Mottram ◽  
A.J.F. Webster

An automatic milking system (AMS) has the potential to milk cows when the cow chooses. However cows must attend the system at an appropriate frequency. The provision of food in the AMS is a robust, way of luring cows into the system. The system can be arranged such that the cows have to visit the AMS to access food in the exit area the other side. Here they can be fed forage or concentrate. It has been shown that feeding cows forage as a lure can result in modified forage feeding behaviour, and this may be to the detriment of the cows (Winter, 1993, Ketelaar-de-Lauwere, 1992). Feeding concentrate in the exit area may be an alternative design if the level of attendance generated is high enough. Cows can also be fed concentrate in the milking stall of the AMS. The aim of this experiment was to compare die effects of feeding forage or concentrate in the exit area and the effect of feeding or not feeding concentrate in the milking stall on attendances, and lying and feeding behaviour.


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