Early weaning and high feeding level in post-weaning period did not impact milk production in Alpine dairy goats
| Autor: | Clémence Panzuti, Christine Duvaux-Ponter, Frederic Dessauge, Gaëlle Mandrile |
|---|---|
| Přispěvatelé: | Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Modélisation Systémique Appliquée aux Ruminants (MoSAR), AgroParisTech-Institut National de la Recherche Agronomique (INRA), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-AgroParisTech |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Litter (animal)
Aging Time Factors Litter Size Rearing 040301 veterinary sciences biology.animal_breed Weaning Biology 0403 veterinary science Eating Animal science Pregnancy Lactation Food Quality medicine Animals Alpine goat 2. Zero hunger Kids Early weaning Goats 0402 animal and dairy science 04 agricultural and veterinary sciences General Medicine medicine.disease Milk production 040201 dairy & animal science Diet Pregnancy rate Milk medicine.anatomical_structure Animal Nutritional Physiological Phenomena Female Animal Science and Zoology [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition Food Science ADG |
| Zdroj: | Journal of Dairy Research Journal of Dairy Research, Cambridge University Press (CUP), 2018, 85 (3), pp.277-280. ⟨10.1017/S0022029918000377⟩ |
| ISSN: | 0022-0299 1469-7629 |
| Popis: | The experiment reported in this Research Communication aimed to determine the combined effects of early weaning and post-weaning feeding level on growth, reproductive parameters and milk yield in Alpine goats. Sixty-four Alpine goat kids were weaned abruptly at either 12·2 (±1·40) kg (40 d of age, E) or 17·7 (±2·30) kg (60 d of age, No). After weaning, E and No goats were subjected to 2 feeding strategies (n = 16): ad libitum concentrate until 130 d of age and then 620 g DM/d/goat until 200 d of age (EC and NoC) or ad libitum concentrate until 200 d of age (EAL and NoAL). Goats were weighed twice a month until 200 d of age. Pregnancy rate and litter size were recorded. Daily milk yield was measured by milk meter during the first lactation. Up to 60 d of age, average daily gain (ADG) of E kids was significantly lower than No kids. From 60 to 130 d of age, ADG of the four treatments were not different. After 130 d of age, EC and NoC kids had lower ADG than EAL and NoAL kids. Pregnancy rates of EAL and NoAL goats were lower than those of EC and NoC. Milk yield was not modified by weaning weight or feeding management. Milk quality was not affected by any treatment. To conclude, the age at weaning as well as the feeding level after weaning did not negatively impact growth and milk yield. We hypothesise that the establishment of the lactation function is not impacted by rearing management. Hence, decreasing the age at weaning could be an interesting way to reduce the cost of the rearing period in goat kids. |
| Databáze: | OpenAIRE |
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