Effect of diet type on performance and metabolic traits of Peruvian local and introduced cow types kept at 200 and 3600 m of altitude

Bartl, Karin; Gómez, Carlos A.; Aufdermauer, T.; García, M.; Kreuzer, Michael; Heß, Hans; Wettstein, H.-R.

doi:10.1016/j.livsci.2008.07.022

Cited by 15 publications

(9 citation statements)

References 28 publications

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“…Assuming an unlimited availability of a typical forage of high nutritive value, a Criollo cow (a local cow type well adapted to the harsh environmental conditions) with a live weight of 330 kg and a typical milk yield of 3·85 kg milk d −1 with 56·5 g fat kg −1 milk, equivalent to 4·58 kg energy‐corrected milk (ECM) d −1 (Bartl et al. , 2008), is estimated to consume 9·26 kg DM d −1 (NRC, 2001).…”

Section: Resultsmentioning

confidence: 99%

Agronomic performance and nutritive value of common and alternative grass and legume species in the Peruvian highlands

Bartl

Gamarra

Gómez

et al. 2009

Grass and Forage Science

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The agronomic performance and nutritive value of twelve annual and perennial grasses and legumes were analysed in order to define alternatives to local forages for dry-season feeding of ruminants in the Peruvian Andes. There were twelve species and two fertilizer treatments (no fertilizer and a N;P;K fertilizer mainly applied at sowing) in an experiment with a randomized complete block design with three replicates at each of two sites. Plant height, soil cover by forage and weed species, frost damage, dry matter (DM) yield and nutritive value of herbage were evaluated in 2005 and 2006. Among the annual species, Hordeum vulgare L. cv. UNA 80 and ·Triticose-cale Wittm. had the highest DM yields when fertilized (8226 and 6934 kg ha )1 respectively). Without fertilizer the alternative cultivars had similar DM yields to that of the local forages. Cultivars of Avena sativa L. had lower concentrations of neutral-detergent fibre (NDF) (557 g kg )1 DM) and higher concentrations of predicted net energy for lactation (5AE86 MJ kg )1 DM) than the other annual grass species (625 g kg )1 DM and 5AE01 MJ kg )1 DM respectively), while the legumes were superior in concentrations of crude protein (277 g kg )1 DM) and NDF (362 g kg )1 DM). Considering the low agronomic performance of the perennial forages, a mixture of fertilized annual grasses and legumes appears the most appropriate approach to meeting the demand for forage of high nutritive value in the Peruvian highlands.

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Section: Resultsmentioning

confidence: 99%

Agronomic performance and nutritive value of common and alternative grass and legume species in the Peruvian highlands

Bartl

Gamarra

Gómez

et al. 2009

Grass and Forage Science

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“…Additionally the nutrient contents of 74 samples of the most common feed were available for the highland system (Bartl et al, 2009a). Another source of data with a high regional context was information generated in a feeding trial with cattle and feed typical for the central Peruvian Andes (Bartl et al, 2009b). The production and nutritional values of forages were adopted from a growing experiment conducted in Chalhuas and Sallahuachac (Bartl et al, 2009c).…”

Section: Data Qualitymentioning

confidence: 99%

Life cycle assessment of milk produced in two smallholder dairy systems in the highlands and the coast of Peru

Bartl¹,

Gómez²,

Nemecek³

2011

Journal of Cleaner Production

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“…Grazing at both, the highest altitude Site 3 (4,500 m) and Site 5, obviously resulted in an energy deficiency in the hybrids as indicated by BW changes, the first likely because of hypoxia (Bianca 1976 ) and the last due to the low forage quality. The BW gain found on Site 4 compared to Site 3 might indicate that this altitude was more comfortable for the hybrids whereas their high altitude tolerance was surpassed at 4,500 m. Fully adapted animals staying most of the time at very high altitude such as the yaks in the present study do not show such BW losses (Bartl et al 2009 ; Qiao et al 2013 ).…”

Section: Discussionmentioning

confidence: 47%

Effects of different stocking densities on performance and activity of cattle × yak hybrids along a transhumance route in the Eastern Himalaya

et al. 2015

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Twelve lactating cattle × yak hybrids (B. taurus × B. grunniens) were investigated on five experimental pastures (Sites 1–5), following an up- and downward transhumance route (3,200, 4,000, 4,500, 4,000 and 2,600 m a.s.l.). Hybrids were kept in replicated groups of two (low SD) and four animals per paddock (high SD). As a control, yaks (with calves) were included at low SD at Sites 2–4. Performance was described by body weight, milk yield and composition. Herbage samples as selected by the animals were analyzed. Activity patterns of the hybrids were assessed at Sites 2–4. At similar body weight change and milk composition, the individual hybrids on average produced 26% less milk at high than at low SD. However, at high SD on average still 49% more milk/m2 of pasture area was produced. Milk fat increased with time from 5.4 to 7.1%, milk protein decreased from 4.2 to 3.3%. At high SD, the hybrids spent less time standing and more time lying. The yaks gained weight at 4,500 m a.s.l. while the hybrids lost weight (+836 and −653 g/animal/day, respectively). In conclusion, high SD reduced individual milk yield and forced hybrids to spend more time for feeding. The yaks apparently had an advantage over the hybrids at very high altitude.

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Effect of diet type on performance and metabolic traits of Peruvian local and introduced cow types kept at 200 and 3600 m of altitude

Cited by 15 publications

References 28 publications

Agronomic performance and nutritive value of common and alternative grass and legume species in the Peruvian highlands

Agronomic performance and nutritive value of common and alternative grass and legume species in the Peruvian highlands

Life cycle assessment of milk produced in two smallholder dairy systems in the highlands and the coast of Peru

Effects of different stocking densities on performance and activity of cattle × yak hybrids along a transhumance route in the Eastern Himalaya

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