Effects of altrenogest treatment in sows on the variation of piglet birth weight and pre-weaning piglet performance
| Autor: | Nattavut Ratanavanichrojn, Alongkot Boonsoongnern, Pichai Jirawattanapong, Supatee Kitkha, Anuchai Pinyopummin |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
endocrine system
medicine.medical_specialty Altrenogest 040301 veterinary sciences Birth weight digestive system Human chorionic gonadotropin 0403 veterinary science Andrology chemistry.chemical_compound Induced ovulation Internal medicine medicine Weaning lcsh:Agriculture (General) Estrous cycle business.industry Piglet 0402 animal and dairy science 04 agricultural and veterinary sciences Birth weight variation lcsh:S1-972 040201 dairy & animal science digestive system diseases Endocrinology chemistry Pre-weaning Sow General Agricultural and Biological Sciences business hormones hormone substitutes and hormone antagonists |
| Zdroj: | Agriculture and Natural Resources, Vol 51, Iss 4, Pp 303-309 (2017) |
| ISSN: | 2452-316X |
| DOI: | 10.1016/j.anres.2017.02.006 |
| Popis: | The effect of altrenogest (ALT) feeding combined with induced ovulation by human chorionic gonadotropin (hCG) in sows was evaluated on piglet birth weight (BW) variation and pre-weaning performance. Sows were divided into four groups: the control (no ALT; without hCG induction; artificial inseminated (AI) at 12 and 36 h after estrus; n = 40), ALT + hCG72 (ALT 20 mg/d, D-4–D2 (D0: weaning day); hCG 750 IU at 72 h post ALT; AI at 24 and 40 h after hCG; n = 41), ALT + hCG96 (ALT 20 mg/d, D-4–D2; hCG 750 IU at 96 h post ALT; AI at 24 and 40 h after hCG; n = 41) and ALT + no hCG (20 mg/d, D-4–D2; without hCG induction; AI at 12 and 36 h after estrus; n = 41). The results revealed that piglet BW was not different among the groups (p > 0.05). However, the standard deviation of piglet BW (SDBW) was lower in ALT + hCG72 (0.32 ± 0.02 kg; p = 0.032), compared to ALT + hCG96 (0.40 ± 0.02 kg) and ALT + no hCG (0.40 ± 0.02 kg), except for the control (0.39 ± 0.02 kg). In addition, the pre-weaning mortality rate (%PWM) due to underweight elimination at weaning (below 3.50 kg) was decreased in ALT + hCG72 (8.33%) compared to the control (32.50%; p = 0.007) but similar to ALT + hCG96 (10.71%) and ALT + no hCG (24.05%). Therefore, ALT + hCG72 treatment in sows could reduce piglet BW variation and the number of piglets eliminated at weaning. |
| Databáze: | OpenAIRE |
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