Effects of photoperiod on nutrient digestibility, hair follicle activity and cashmere quality in Inner Mongolia white cashmere goats
| Autor: | Shengli Li, Lu Jin, Marco Antonini, Dan Sang, Chong Zhi Zhang, Cun Fa Zhao, Chun Hua Zhang, Hai Zhou Sun |
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| Přispěvatelé: | Zhang, C. Z., Sun, H. Z., Li, S. L., Sang, D., Zhang, C. H., Jin, L., Antonini, M., Zhao, C. F. |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Photoperiod lcsh:Animal biochemistry Biology Inner mongolia Article Ruminant Nutrition and Forage Utilization 03 medical and health sciences Animal science medicine Cashmere goat Dry matter lcsh:QP501-801 lcsh:SF1-1100 Melatonin photoperiodism Nutrient digestibility Significant difference 0402 animal and dairy science 04 agricultural and veterinary sciences Secondary Hair Follicle Hair follicle 040201 dairy & animal science Neutral Detergent Fiber 030104 developmental biology medicine.anatomical_structure Digestibility Cashmere Goat Animal Science and Zoology lcsh:Animal culture Food Science |
| Zdroj: | Asian-Australasian Journal of Animal Sciences Asian-Australasian Journal of Animal Sciences, Vol 32, Iss 4, Pp 541-547 (2019) |
| ISSN: | 1976-5517 1011-2367 |
| Popis: | Objective: This study investigated the effects of photoperiod on nutrient digestibility, hair follicle (HF) activity and cashmere quality in Inner Mongolia white cashmere goats. Methods: Twenty-four female (non-pregnant) Inner Mongolia white cashmere goats aged 1 to 1.5 years old with similar live weights (mean, 20.36±2.63 kg) were randomly allocated into two groups: a natural daily photoperiod group (NDPP group:10 to 16 h light, n = 12) and a short daily photoperiod group (SDPP group: 7 h light:17 h dark, n = 12). All the goats were housed in individual pens and fed the same diets from May 15 to October 15, 2015. The digestibility of crude protein (CP), dry matter (DM), and neutral detergent fiber (NDF) were measured in different months, along with secondary hair follicle (SHF) activity, concentration of melatonin (MEL), and cashmere quality. Results: Although there was no significant difference in the live weights of goats between the SDPP and NDPP groups (p>0.05), the CP digestibility of goats in the SDPP group was significantly increased compared to the NDPP group in July, September, and October (p |
| Databáze: | OpenAIRE |
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