Body composition in mature Parda de Montaña and Pirenaica suckler cows

Álvarez-Rodríguez, J.; Alibés, Mireia Blanco; Ripoll, G.; Sanz, A.; Casasús, I.

doi:10.5424/sjar/2009071-399

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…At calving, interaction between PRE and POST treatments tended to affect height at withers (P = 0.05), because LO-LO primiparous cows were shorter than LO-HI cows (P < 0.01), but no differences remained between HI-HI and HI-LO heifers (P > 0.10). Measures observed in this study at calving ranged from 94% to 97% of those described by Álvarez-Rodríguez et al (2009a) in adult cows from the same breed, in which maturity is reached at around 4.5 yr (Cano et al 2016).…”

Section: Growth Performancementioning

confidence: 63%

First calving performance and physiological profiles of 2-year-old beef heifers according to their pre-breeding growth

Rodríguez-Sánchez¹,

Sanz²,

Ferrer³

et al. 2017

Can. J. Anim. Sci.

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This experiment was designed to assess the effects of different feeding strategies before first breeding at 15 mo on performance and physiological parameters of beef heifers during their gestation and first lactation. During preweaning (PRE, 0-6 mo) and postweaning periods (POST, 6-15 mo), 25 Parda de Montaña heifers were fed to achieve gains of 1.0 kg d −1 (HI) or 0.7 kg d −1 (LO) in a 2 × 2 factorial design (HI-HI, HI-LO, LO-HI, and LO-LO). Although calf birth weights did not differ, heifers from LO-LO treatment had the greatest calving assistance (80%), probably because they were lighter than the rest (436 ± 39 kg body weight, P < 0.01) and had the smallest external pelvic area (19.5 ± 2.0 dm 2 , P < 0.01). Milk production and calf gains during lactation were similar among treatments. Cows from POST-HI treatment tended to be cyclic earlier than POST-LO ones (82 ± 8.4 and 106 ± 9.4 d post partum, respectively; P = 0.06). Feeding managements did not influence metabolic (glucose, cholesterol, nonesterified fatty acid, β-hydroxybutyrate, and urea) or endocrine (insulin-like growth factor I and leptin) profiles of heifers. Continued low feeding levels before breeding heifers at 15 mo are not recommended, because they may hinder primiparous calving performance.

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Section: Growth Performancementioning

confidence: 63%

First calving performance and physiological profiles of 2-year-old beef heifers according to their pre-breeding growth

Rodríguez-Sánchez¹,

Sanz²,

Ferrer³

et al. 2017

Can. J. Anim. Sci.

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“…However, both traits were significantly greater at mo in heifers from the HIGH than those from the MOD treatment, which confirms their different growth pattern. Height at withers at calving was 97% of that described by Álvarez-Rodríguez, et al [30] (131 cm) for mature dry cows of the same breeds, and therefore skeletal development at first calving could be considered as adequate for all groups. External pelvic area at 15 mo was smaller in PI heifers, which might reflect a later pelvic development, and in those of the MOD group, but these differences were offset during gestation and had no further effects.…”

Section: Accepted Manuscriptmentioning

confidence: 72%

Influence of postweaning feeding management of beef heifers on performance and physiological profiles through rearing and first lactation

Rodríguez-Sánchez

Sanz

Ferrer

et al. 2018

Domestic Animal Endocrinology

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The aim of this study was to examine the effects of 2 postweaning feeding management approaches (FEED: 0.8 [HIGH] vs 0.6 [MOD] kg/d target ADG) on the performance of heifers of 2 beef breeds (BREED: Parda de Montaña [PA] vs Pirenaica) calving at 2 yr. Twenty-five heifers previously creep fed before weaning (6 mo) were assigned to 2 planes of nutrition from 6 to 15 mo of age. At 15 mo, they were inseminated, and then received similar diets until weaning of their first calf (4 mo postcalving). Several parameters were measured to analyze growth and development (BW; ADG; size measures at 6 mo, 15 mo, calving, and weaning), performance at puberty and first breeding, and dam and calf performance in the first lactation (calving traits, ADG, milk yield). Metabolic (glucose, cholesterol, NEFA, β-hydroxybutyrate, and urea) and endocrine status (IGF-I and leptin) were assessed in plasma samples collected every 3 mo from 6 mo to calving and monthly during lactation. No interaction between BREED and FEED was observed. Heifers from the HIGH feeding treatment had higher postweaning ADG than those on the LOW diet. At 15 mo, they had greater BW, heart girth, and external pelvic area, but they did not differ thereafter. All heifers reached puberty at similar BW (55% mature BW) but different ages. Heifers from the HIGH treatment tended (P < 0.09) to be pubertal earlier, and PA heifers were 1.6 mo younger than Pirenaica heifers (P < 0.05) at puberty. At the time of conception (452 ± 59 kg) and calving (471 ± 51 kg), BW was above common recommendations in all groups. Calving traits and performance in lactation did not differ between feeding treatments. BREED only influenced birth weight; PA calves being heavier (P < 0.05), which resulted in a larger calf/cow BW ratio, but no effect on calving difficulty or subsequent performance. Metabolic substrates and hormones depended mostly on sampling date, which was related to current energy and protein intake. Glucose (P < 0.001), cholesterol (P < 0.001), and IGF-I (P < 0.05) were greater during the postweaning phase in heifers on the HIGH diet, and persistent physiological effects were observed during lactation. Age at puberty was negatively related with IGF-I (r = -0.43, P < 0.001), but not with leptin concentrations. In conclusion, regardless of breed, a moderate growth rate ensured adequate heifer development and performance until the first lactation, whereas no advantage was gained from enhanced postweaning gains.

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“…Álvarez-Rodriguez et al (2009) reported that skin thickness of adult Parda de Montaña and Pirenaica cows ranged …”

Section: Morphometric Measurements and Carcass Characteristicsmentioning

confidence: 99%

Body size, carcass and meat quality of three commercial beef categories of ‘Serrana de Teruel’ breed

Ripoll

Albertı́

Álvarez-Rodríguez

et al. 2016

Span. j. agric. res.

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The aim of this study was to analyse three commercial beef categories of the ‘Serrana de Teruel breed’ to define the appropriate commercial option. Twenty ‘Serrana de Teruel’ male calves at 9 months were assigned to the commercial beef categories (young bulls, bulls and steers), slaughtered at 12, 22 and 22 months of age, respectively. The in vivo ultrasound backfat thickness was greater than the dorsal fat thickness, and the young bulls and steers had a similar fat thickness, that was greater than the bulls in both areas. The slaughter weight and cold carcass weight were significantly different between the commercial categories. However, the differences were not sufficient to modify the dressing percentage, carcass conformation and fatness degree between the young bulls and bulls. The maximum stress of the muscle at 7 d of ageing was lower in the steers than in the young bulls and bulls. In general, the lightness of the meat in the bulls was lower than that in the young bulls and steers. The subcutaneous fat of the bull carcasses had a vivid colour and stored more carotenoids than that of the young bulls and steers. Hence, bulls produced heavier and better conformed carcasses with more edible meat and less fat than the other categories. However, steers are recommended to produce large carcasses with more trim and cover fat than the other categories. Finally, it seems that bulls are the most suitable commercial category to ‘Serrana de Teruel’ breed.

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Body composition in mature Parda de Montaña and Pirenaica suckler cows

Cited by 5 publications

References 15 publications

First calving performance and physiological profiles of 2-year-old beef heifers according to their pre-breeding growth

First calving performance and physiological profiles of 2-year-old beef heifers according to their pre-breeding growth

Influence of postweaning feeding management of beef heifers on performance and physiological profiles through rearing and first lactation

Body size, carcass and meat quality of three commercial beef categories of ‘Serrana de Teruel’ breed

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