Breed comparisons of Angus, Charolais, Hereford, Jersey, Limousin, Simmental, and South Devon for weight, weight adjusted for body condition score, height, and body condition score of cows1,2

Arango, Jesus; Cundiff, L. V.; Vleck, L.D. Van

doi:10.2527/2002.80123123x

Cited by 37 publications

(15 citation statements)

References 28 publications

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“…Those red and white animals were highly sought because of their "rapid growth development; outstanding production of milk, butter and cheese; and for their use as draught (draft) animals." They were known for their gentle nature, impressive stature and excellent dairy qualities [2].…”

Section: Introductionmentioning

confidence: 99%

Productivity of simmental cows Austrian selection

Shevhuzhev¹,

Белик²,

Emel'yanov³

et al. 2017

Engineering for Rural Development

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Abstract. The article presents data characterizing milk production and milk quality indicators of Simmental cows' Austrian selection of different productive types in the process of adaptation for the conditions of foothills of the North Caucasus, the Russian Federation. Simmental cows' milk type by the amount of milk produced is surpassing the cows (meat-dairy and dairy-meat) at the first lactation on 815 and 1934 kg at the second lactation -904 and 2114 kg and at the third -834 and 2030 kg. Analysis of the data revealed relatively high and stable lactation throughout the control period of the cows of all productive types. The content of dry matter, fat and protein in milk was more from the cows of meat-dairy type productivity. The content of nonessential amino acids in milk from the cows of meat-dairy type was more than from dairy cows by 14.5 %, dairy-meat by 9.6 %; the sum of essential amino acids -11.6 and 7.2 %. During lactation, the number of essential amino acids and the total amino acid content decreased in milk from cows all of productive types. The Austrian Simmental cattle breeding different production types characterized as adaptable to the conditions of the North Caucasus foothills.

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Section: Introductionmentioning

confidence: 99%

Productivity of simmental cows Austrian selection

Shevhuzhev¹,

Белик²,

Emel'yanov³

et al. 2017

Engineering for Rural Development

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“…This suggests that the level of energy and protein in the rations for both periods does not result in excessive fatness of Simmental heifers at the reproduction and calving stages when in the subsequent period of rearing the heifers are fed as the control group according to IZ-INRA (2001) standards established for gains of 700 g/day. The tendency of BSC and SFT to increase with the age of heifers is also known in other breeds (Hoffman, 1997;Waldo et al, 1997;Arango et al, 2002;Bilik and Strzetelski, 2005).…”

Section: Discussionmentioning

confidence: 84%

The effect of pre- and post-pubertal feeding levels on the growth, reproduction, and future milk production of Simmental dairy heifers

Strzetelski

J.²,

Bilik³

2007

J. Anim. Feed Sci.

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The effect of pre-and post-puberty feeding of rations diversified in terms of energy and protein content on the growth rate, body condition, fatness, milk yield and reproduction efficiency of Simmental heifers was investigated. The experiment was carried out on 40 Simmental heifers from 6 months of age to day 100 of lactation, allotted to 5 groups according to age and body weight. During pre-(from 6 to 11 months of age) and post-puberty (from 12 to 13 months of age) the animals were fed rations of different or the same levels of energy (UFL) and protein (PDI) as the control Group K, which was fed according to IZ-INRA (2001). The respective levels of UFL and PDJ in the rations for the experimental groups in both periods were, % of control Group K : Group A, 85/85 and 115/115; Group B, 85/115 and 100/100; Group C, 115/85 and 100/100; Group D, 115/115 and 115/ 115. From 14 months of age to day 100 of lactation the animals of all groups were fed the same as the control group. Heifers that received higher UFL and lower BTJ (Group C) or increased levels of energy and protein (Group D) in their pre-puberty rations than the control group, at 11-18 months of age and in the period from 6 months of age to calving, achieved higher body weight gain than the animals of the remaining groups (P<0.05). Heifers fed rations with high pre-puberty energy levels (Groups C and D) and lower protein levels (Group C) calved about 40 days earlier and had a worse conception rate and insemination index (P>0.05) than animals in other groups. Total milk production per cow in Groups A and B was about 11% higher than in Groups K and D, and about 6% higher than in Group C, but the differences were not statistically significant (P>0.05). Independently 156 FEEDING LEVEL OF SIMMENTAL DAIRY HEIFERS of the protein level, feeding Simmental heifers pre-puberty period ration with a low energy level followed by high-energy ration caused somewhat slower BWG from 6 months to calving, increased the age of first mating and calving but stimulated milk production in primiparous cows.

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“…Recently, random regression models have been advocated to fit growth data (Schenkel et al, 2002;Hassen et al, 2003). Also, the method was applied by Varona et al (1997) and Arango et al (2002) on the weights of mature beef cows.…”

Section: Discussionmentioning

confidence: 99%

Modeling of crossbred cattle growth, comparison between cubic and piecewise random regression models

Pitchford¹,

Verbyla²

2011

Genet. Mol. Res.

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ABSTRACT. Two analyses, cubic and piecewise random regression, were conducted to model growth of crossbred cattle from birth to about two years of age, investigating the ability of a piecewise procedure to fit growth traits without the complications of the cubic model. During a four-year period (1994)(1995)(1996)(1997) of the Australian "Southern Crossbreeding Project", mature Hereford cows (N = 581) were mated to 97 sires of Angus, Belgian Blue, Hereford, Jersey, Limousin, South Devon, and Wagyu breeds, resulting in 1141 steers and heifers born over four years. Data included 13 (for steers) and eight (for heifers) live body weight measurements, made approximately every 50 days from birth until slaughter. The mixed model included fixed effects of sex, sire breed, age (linear, quadratic and cubic), and their interactions between sex and sire breed with age. Random effects were sire, dam, management (birth location, year, post-weaning groups), and permanent environmental effects and for each of these when possible, their interactions with linear, quadratic and cubic growth. In both models, body weights of all breeds Modeling of growth: cubic and piecewise regression increased over pre-weaning period, held fairly steady (slightly flattening) over the dry season then increased again towards the end of the feedlot period. The number of estimated parameters for the cubic model was 22 while for the piecewise model it was 32. It was concluded that the piecewise model was very similar to the cubic model in the fit to the data; with the piecewise model being marginally better. The piecewise model seems to fit the data better at the end of the growth period.

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Breed comparisons of Angus, Charolais, Hereford, Jersey, Limousin, Simmental, and South Devon for weight, weight adjusted for body condition score, height, and body condition score of cows1,2

Cited by 37 publications

References 28 publications

Productivity of simmental cows Austrian selection

Productivity of simmental cows Austrian selection

The effect of pre- and post-pubertal feeding levels on the growth, reproduction, and future milk production of Simmental dairy heifers

Modeling of crossbred cattle growth, comparison between cubic and piecewise random regression models

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