Computer-Controlled Milk Feeding of Group-Housed Calves: The Effect of Milk Allowance and Weaning Type

Jensen, Margit Bak

doi:10.3168/jds.s0022-0302(06)72084-7

Cited by 62 publications

(58 citation statements)

References 8 publications

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“…However, with these conventional weaning systems there are often problems, because heavier calves tend to obtain more MR and disturb the smaller calves when they are drinking (Hepola, 2003). The calves fed by a computer-controlled feeder can gradually be weaned, for instance, over a couple of weeks, and weaning is typically done by reducing the size of the MR portions and/or reducing the number of MR portions (Jensen, 2006). In the present study we reduced gradually both the size and the number of the portions over a couple of weeks but, still, the F calves had difficulties in the weaning period and their growth slowed down remarkably.…”

Section: Discussionmentioning

confidence: 99%

“…Weaning is Available online at www.sciencedirect.com Livestock Science 113 (2008) 302 -306 www.elsevier.com/locate/livsci typically done by reducing the size of the MR portions and/or reducing the number of MR portions (Jensen, 2006). With a computer-controlled system it is possible to wean calves gradually, so the transition from MR to solid feed is easier than by conventional methods.…”

Section: Introductionmentioning

confidence: 99%

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Computer-controlled milk replacer feeding strategies for group-reared dairy calves

Huuskonen

Khalili

2008

Livestock Science

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Computer-controlled milk replacer feeding strategies for group-reared dairy calves

Huuskonen

Khalili

2008

Livestock Science

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“…It is possible that growth rates on our (Bascom et al, 2007). In another study, Jersey calves fed a 24% CP and 19% fat MR grew at a rate of 0.594 kg/d (Jensen, 2006). Klotz and Heitmann (2006) reported an ADG of 0.530 kg/d for Jersey calves fed a 23% CP and 17.5% fat MR.…”

Section: Growthmentioning

confidence: 92%

Jersey calf performance in response to high-protein, high-fat liquid feeds with varied fatty acid profiles: Intake and performance

Yoho

Swank

Eastridge

et al. 2013

Journal of Dairy Science

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The objective of this study was to determine whether altering the fatty acid (FA) profile of milk replacer (MR) with coconut oil, which contains a high concentration of medium-chain FA, to more closely match the FA profile typically found in whole milk from Jersey cows, would improve Jersey calf performance. Male (n=18) and female (n=32) Jersey calves were assigned at birth to 1 of 4 liquid diets: (1) pasteurized Jersey saleable whole milk [pSWM; 27.9% crude protein (CP) and 33.5% fat]; (2) 29.3% CP and 29.1% fat MR, containing 100% of fat as edible lard (100:00); (3) 28.2% CP and 28.0% fat MR, containing 80% of fat as lard and 20% as coconut oil (80:20); and (4) 28.2% CP and 28.3% fat MR, containing 60% of the fat as lard and 40% as coconut oil (60:40). Calves were fed their respective liquid diet twice daily during wk 1 through 7 and once daily until weaning (approximately wk 8). Calves had ad libitum access to grain and water, and calves were monitored 1 wk postweaning. Average daily gain and body weight did not differ by treatment. Calves fed pSWM tended to have greater hip height (HH) than calves fed 80:20 (80.5 vs. 79.7 cm). Coconut oil tended to have a quadratic effect on HH, with calves fed 100:00, 80:20, and 60:40 at 79.2, 79.7, and 78.5 cm, respectively. No difference was observed in withers height between pSWM and 80:20. Coconut oil had a quadratic effect on withers height, with calves fed 100:00, 80:20, and 60:40 at 76.6, 77.5, and 76.5 cm, respectively. Change in HH from birth to 9 wk tended to be greater for calves fed pSWM than calves fed 80:20 (0.218 vs. 0.194 cm/d). Calves fed pSWM had higher milk dry matter intake (DMI) than calves fed 80:20 (0.580 vs. 0.518 kg/d). No effect of coconut oil was observed on milk DMI. Grain DMI and total DMI did not differ among treatments. Calves fed pSWM had an increase in days with a fecal score >2 compared with calves fed 80:20 (4.24 vs. 2.00 d). Coconut oil had a quadratic effect on fecal score, with calves fed 100:00, 80:20, and 60:40 scoring 4.00, 2.00, and 3.63 d, respectively. Respiratory score did not differ among treatments. In conclusion, DMI and average daily gain were similar among treatments. However, differences among treatments in skeletal growth and fecal scores are indicative of some possible benefits of medium-chain FA on calf health and performance.

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“…In similar studies, Borderas et al (2009) andJensen (2006) also observed a decrease in milk consumption and an increase in concentrate consumption in calves raised in breeding systems that used an automatic calf feeder after 15 days of age. In calves up to 30 days old, the nutrients are supplied by milk.…”

Section: Resultsmentioning

confidence: 71%

Performance of dairy calves raised under two breeding systems

Borger

Martins

Galetto

et al. 2017

SCA

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Increasing concern about some animal production systems has placed considerable value on humanitarian breeding systems, aimed at ensuring animal welfare and comfort. Raising calves is one of the most important stages in a milk production system. This study aimed to evaluate and compare the performance of Holstein dairy calves raised by two farming systems: conventional individual (CI) and collective with automatic calf feeder (CACF). Fourteen, 15-day-old Holstein dairy calves having an average initial body weight of 40 kg, were used. The animals were distributed in a completely randomized design with seven animals per treatment. The variables evaluated were the milk and feed intake, body weight, hip height, thoracic circumference and daily weight gain. The average milk intake was lower in the CACF (3.5 L animal -1 day -1 ) than CI (5.1 L animal -1 day -1 ) system. However, the feed intake was higher in the CACF (1.205 kg animal -1 day -1 ) compared to CI (0.910 kg animal -1 day -1 ) system. Body weight, thoracic circumference, hip height and daily weight gain were similar between the two systems. The CACF raised calves had a higher concentrate intake and lower milk intake than the calves raised under the CI system. Key words: Calf feeder. Daily weight gain. Milk intake. Feed intake. ResumoNas últimas décadas, a sociedade tem questionado alguns métodos de produção animal e, neste sentido, tem sido valorizado os sistemas de criação humanitária de animais, visando o bem-estar e conforto animal. Considerando que a criação de bezerras constitui uma das fases mais importantes em um sistema de produção de leite, objetivou-se avaliar e comparar o desempenho de bezerras leiteiras da raça Holandesa submetidas aos sistemas de criação individual e coletivo com alimentador automático. Foram utilizadas 14 bezerras da raça Holandesa, com 15 dias de idade e peso corporal inicial médio de 40 kg. Os animais foram distribuídos em delineamento inteiramente casualizado, em dois sistemas de criação: Criação convencional individual (CCI); Criação coletiva com alimentador automático (CCAA), sendo sete animais por tratamento. Avaliaram-se o consumo de leite e de ração, peso corporal, altura de garupa, perímetro torácico e o ganho de peso médio diário. O consumo médio de leite foi menor no sistema CCAA (3,5 L animal -1 dia -1 ) em relação ao CCI (5,1 L animal -1 dia -1 ), porém a ingestão de ração foi maior no sistema CCAA (1,205 kg animal -1 dia -1 ) comparado ao sistema CCI (0,910 kg animal -1 dia -1 ). As variáveis peso corporal, perímetro torácico, altura de garupa e ganho de peso diário dos bezerros foram semelhantes entre os sistemas. Bezerras criadas coletivamente com o uso de alimentador automático apresentam maior consumo de concentrado e menor consumo de leite. Palavras-chave: Alimentador automático para bezerros. Consumo de leite. Consumo de ração. ganho de peso médio diário.

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Computer-Controlled Milk Feeding of Group-Housed Calves: The Effect of Milk Allowance and Weaning Type

Cited by 62 publications

References 8 publications

Computer-controlled milk replacer feeding strategies for group-reared dairy calves

Computer-controlled milk replacer feeding strategies for group-reared dairy calves

Jersey calf performance in response to high-protein, high-fat liquid feeds with varied fatty acid profiles: Intake and performance

Performance of dairy calves raised under two breeding systems

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