Lactation Performance of Range Beef and Dairy-Beef Cows

Butson, Sarah; Berg, R. T.

doi:10.4141/cjas84-032

Cited by 16 publications

(22 citation statements)

References 13 publications

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“…There are many different estimates of the influence of milk production of the cow on gain of her calf. These ranged from no effect (Martin and Franke, 1982;Ansotegue et aI., 1991) to significant positive effects (Melton et aI., 1967a;Butson and Berg, 1984a;. The amount of variation in calf gain that is explained by variation in dam's milk production has been reported as 36% to 49% (Pope et aI., 1963),40% to 46% (Koch, 1972) and 56% to 61% (Jeffery et aI., 1971b) in crossbred cows.…”

Section: Milk Production and Calf Gainmentioning

confidence: 99%

“…Butson and Berg (1984a) found that Herefords (4.4 ± .7 kg/day) produced less milk than other breeds and crosses (7.0 ± ,1 k,g/day). reported that Wokalups produced more milk (P < .01) than Herefords.…”

Section: Breed Of Cow and Milk Production Calf Gain And Weaning Weightmentioning

confidence: 99%

“…In a study of Angus cows, Drewry et al (1959) reported that 12.5 kg, 10.8 kg and 6.3 kg of milk were required to produce one kg of calf gain in the first, third and sixth month respectively. Using crossbred cows, Butson and Berg (1984a) found that a .1 kg increase in average daily gain was associated with a .480 kg and a .211 kg increase I June and September milk production, respectively.…”

Section: Milk Production and Calf Gainmentioning

confidence: 99%

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Milk production of crossbred daughters of high- and low-milk EPD Angus and Hereford bulls.

Minick

Buchanan

Rupert

2001

Journal of Animal Science

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Section: Milk Production and Calf Gainmentioning

confidence: 99%

Section: Breed Of Cow and Milk Production Calf Gain And Weaning Weightmentioning

confidence: 99%

Section: Milk Production and Calf Gainmentioning

confidence: 99%

See 1 more Smart Citation

Milk production of crossbred daughters of high- and low-milk EPD Angus and Hereford bulls.

Minick

Buchanan

Rupert

2001

Journal of Animal Science

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“…Source of cows and a description of the breeding background and experimental procedure for milk removal and analyses were provided by Butson and Berg (1983) (1914) found maximum production in 4-and 4-yr-old Herefords at 20 days (7.3 kg/day) using the calf weigh-suckle-weigh method for measuring calf ingestion or milk production of the dam. However, Totusek et al (1973) found, using the weigh-suckle-weigh method, that the lactation curve for beef cows was nearly similar to that for dairy cows, peaking at 7 compared to 4 wk with hand-milking.…”

Section: Methodsmentioning

confidence: 99%

“…Differences in the level of milk production and associated constituent yields were found between age and breed of dam categories in a singlesuckling range beef production system (Butson and Berg 1983). Whether these differences solely reflect hereditary differences in milk production potential or whether they are modified by the calfsuckling regime common to beef systems is not clear (Gleddie and Berg 1958;Neville et al 1974).…”

mentioning

confidence: 99%

Factors Influencing Lactation Performance of Range Beef and Dairy-Beef Cows

Butson¹,

Berg²

1984

Can. J. Anim. Sci.

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An investigation was carried out to study factors influencing milk yields and milk constituents among range cows. June and September measurements of milk yield and constituent percentages of butterfat (BF), protein (PT) and lactose (LT) were taken using 206 and 222 cows in 1976 and 1977, respectively. The cows, representing four beef and dairy-beef breed groups, were from the University of Alberta beef herd and ranged in age from 2 to 10 years. Regression of milk yield on calf age (CA) demonstrated a negative association over the lactation period measured, although regression coefficients were not statistically significant. Associations between all constituent yields with CA were negative. However, regression coefficients of June and September constituent percentage variables on CA indicated a more positive association as lactation progressed. Cow weight loss during gestation, cow weight at calving and ADG during lactation did not account for a significant proportion of the variation in either milk or constituent yields or constituent percentages over and above main effects. The association between cow ADG during lactation and all yields was negative although not statistically significant. Calf birth-weight was positively associated with all yields, and showed negative association with BF% and PT%. Calf average daily gain measured from birth to September was highly associated with yields of milk and constituents, declining from June to September. Its association with BF% and PT% was negative. Cow calving interval was introduced as a possible factor influencing milk yields of 3- and 4-yr-old and mature cows. Its association with lactation performance was however, not significant. Key words: Lactation, range cows

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