Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford dams
Objective The objective was to test if creep feeding (CF) improves the average daily gain (ADG) and weaning weight of calves submitted to temporary weaning (TW) and if the combination of CF and TW improves conception and pregnancy rates of cows. Methods Primiparous (n = 74) and primiparous and multi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Asian-Australasian Association of Animal Production Societies
2022-10-01
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| Series: | Animal Bioscience |
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| Online Access: | http://www.animbiosci.org/upload/pdf/ab-21-0384.pdf |
| _version_ | 1818066175270060032 |
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| author | R. Santa Cruz I. De Barbieri V. Morales Olmos F. Montossi C. Viñoles |
| author_facet | R. Santa Cruz I. De Barbieri V. Morales Olmos F. Montossi C. Viñoles |
| author_sort | R. Santa Cruz |
| collection | DOAJ |
| description | Objective The objective was to test if creep feeding (CF) improves the average daily gain (ADG) and weaning weight of calves submitted to temporary weaning (TW) and if the combination of CF and TW improves conception and pregnancy rates of cows. Methods Primiparous (n = 74) and primiparous and multiparous (n = 104) cows grazing native grasslands were used in experiment 1 and 2; respectively. The experimental design was in plots divided into complete random blocks with two replications. The CF was the big plot and TW the small plot, thus four experimental groups were formed: i) −CF−TW (n = 21 and 27); ii) −CF+TW (n = 16 and 24); iii) +CF−TW (n = 20 and 26); iv) +CF+TW (n = 17 and 27) with cow-calf pairs for experiments 1 and 2; respectively. Nose plate application for TW had a duration of 14 and 15 days for experiment 1 and 2: respectively. In experiment 1, calves were fed at 1% of live weight for 112 days using a commercial supplement with 18.4% crude protein. In experiment 2, the supplementation lasted 98 days, and was carried out with corn dried distillers grains with soluble (DDGS) at 40% of the potential intake on a daily basis. Results The TW reduced ADG during the TW period and the following 14 days, but the negative effect of TW was maintained until the final weaning only in experiment 2. The CF increased ADG during TW period in both experiments. The TW promoted an earlier conception of the dams (12 days in −CF treatment and 19 days in +CF treatment, p<0.01) and CF increased pregnancy rate in experiment 1, being the effects not consistent between experiments. Conclusion The CF consistently promoted an increase in ADG during the period of TW and increased final weaning weight of calves, therefore it is economically viable. |
| first_indexed | 2024-12-10T15:03:28Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2765-0189 2765-0235 |
| language | English |
| last_indexed | 2024-12-10T15:03:28Z |
| publishDate | 2022-10-01 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| record_format | Article |
| series | Animal Bioscience |
| spelling | doaj.art-aeb51df239d949fabe64201afda10e4a2022-12-22T01:44:06ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352022-10-0135101524153410.5713/ab.21.038424854Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford damsR. Santa Cruz0I. De Barbieri1V. Morales Olmos2F. Montossi3C. Viñoles4 Meat and wool Production national research program, INIA Tacuarembó, Route 5 km 386, 45000, Tacuarembó, Uruguay Meat and wool Production national research program, INIA Tacuarembó, Route 5 km 386, 45000, Tacuarembó, Uruguay Centro Universitario Tacuarembó, UdelaR, 45000, Uruguay Meat and wool Production national research program, INIA Tacuarembó, Route 5 km 386, 45000, Tacuarembó, Uruguay Meat and wool Production national research program, INIA Tacuarembó, Route 5 km 386, 45000, Tacuarembó, UruguayObjective The objective was to test if creep feeding (CF) improves the average daily gain (ADG) and weaning weight of calves submitted to temporary weaning (TW) and if the combination of CF and TW improves conception and pregnancy rates of cows. Methods Primiparous (n = 74) and primiparous and multiparous (n = 104) cows grazing native grasslands were used in experiment 1 and 2; respectively. The experimental design was in plots divided into complete random blocks with two replications. The CF was the big plot and TW the small plot, thus four experimental groups were formed: i) −CF−TW (n = 21 and 27); ii) −CF+TW (n = 16 and 24); iii) +CF−TW (n = 20 and 26); iv) +CF+TW (n = 17 and 27) with cow-calf pairs for experiments 1 and 2; respectively. Nose plate application for TW had a duration of 14 and 15 days for experiment 1 and 2: respectively. In experiment 1, calves were fed at 1% of live weight for 112 days using a commercial supplement with 18.4% crude protein. In experiment 2, the supplementation lasted 98 days, and was carried out with corn dried distillers grains with soluble (DDGS) at 40% of the potential intake on a daily basis. Results The TW reduced ADG during the TW period and the following 14 days, but the negative effect of TW was maintained until the final weaning only in experiment 2. The CF increased ADG during TW period in both experiments. The TW promoted an earlier conception of the dams (12 days in −CF treatment and 19 days in +CF treatment, p<0.01) and CF increased pregnancy rate in experiment 1, being the effects not consistent between experiments. Conclusion The CF consistently promoted an increase in ADG during the period of TW and increased final weaning weight of calves, therefore it is economically viable.http://www.animbiosci.org/upload/pdf/ab-21-0384.pdfbeef cow efficiencycattle farmingearly conceptionpregnancy rateweaning weight |
| spellingShingle | R. Santa Cruz I. De Barbieri V. Morales Olmos F. Montossi C. Viñoles Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford dams Animal Bioscience beef cow efficiency cattle farming early conception pregnancy rate weaning weight |
| title | Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford dams |
| title_full | Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford dams |
| title_fullStr | Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford dams |
| title_full_unstemmed | Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford dams |
| title_short | Effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their Hereford dams |
| title_sort | effect of temporary weaning and creep feeding on calf growth and the reproductive efficiency of their hereford dams |
| topic | beef cow efficiency cattle farming early conception pregnancy rate weaning weight |
| url | http://www.animbiosci.org/upload/pdf/ab-21-0384.pdf |
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