干旱区生态环境知识资源中心(Arid): n-6 Polyunsaturated fatty acids in the feeding of late gestation hair ewes: the effects on thermoregulation, growth, and metabolism of heat-stressed growing lambs

Arid

DOI	10.1007/s00484-021-02165-2
	n-6 Polyunsaturated fatty acids in the feeding of late gestation hair ewes: the effects on thermoregulation, growth, and metabolism of heat-stressed growing lambs
	Macias-Cruz, Ulises; Vicente-Perez, Ricardo; Correa-Calderon, Abelardo; Mellado, Miguel; Meza-Herrera, Cesar A.; Arechiga, Carlos F.; Avendano-Reyes, Leonel
通讯作者	Avendano-Reyes, L (corresponding author), Univ Autonoma Baja California, Inst Ciencias Agr, Valle De Mexicali 21705, Baja California, Mexico.
来源期刊	INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
ISSN	0020-7128
EISSN	1432-1254
出版年	2021
英文摘要	The objective was to determine the effects of feeding soybean oil (SBO), an ingredient rich in n-6 polyunsaturated fatty acids (PUFA), to late gestation hair ewes on physiological responses, feedlot performance, and serum metabolite and electrolyte concentrations of their growing ewe lambs under outdoor heat stress conditions. Twenty-four Dorper x Pelibuey ewe lambs weaned (body weight = 21.5 +/- 0.2 kg, age= 2 months, and multiple birth) born from ewes fed 0, 30, or 60 mg of SBO/kg dry matter (DM) during late gestation were selected (n = 8/treatment) to conduct a 30-day feeding trial during the summer season of a desert region (temperature = 34 degrees C and temperature-humidity index = 35 units). While rectal temperature was unaffected in any daytime, respiratory rate in the afternoon quadratically increased (P = 0.05) as the SBO levels increased from 0 to 60 mg/kg DM in the maternal diet. Final weight, average daily gain, and feed efficiency linearly increased (P = 0.04) with increasing levels of SBO. Body surface temperatures and serum concentration of glucose, cholesterol, triglyceride, total protein, urea, sodium, potassium, and chlorine did not vary by the SBO inclusion in the maternal diet. In conclusion, feeding late gestation hair ewes with source rich in n-6 PUFA appears to be an effective maternal nutritional strategy to improve post-weaning growth without compromising the thermoregulatory ability of their growing offspring under a heat stress environment.
英文关键词	Hair sheep fattening lambs Vegetable oil Blood cells Heat stress
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000669828800001
WOS关键词	PERFORMANCE ; SHEEP ; SUPPLEMENTATION ; PREPARTUM ; SUMMER ; COWS
WOS类目	Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology
WOS研究方向	Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352238
作者单位	[Macias-Cruz, Ulises; Correa-Calderon, Abelardo; Avendano-Reyes, Leonel] Univ Autonoma Baja California, Inst Ciencias Agr, Valle De Mexicali 21705, Baja California, Mexico; [Vicente-Perez, Ricardo] Univ Guadalajara, Dept Prod Agr CUCSUR, Autlan De Navarro 48900, Jalisco, Mexico; [Mellado, Miguel] Univ Autonoma Agr Antonio Narro, Dept Nutr Anim, Saltillo 25315, Coahuila, Mexico; [Meza-Herrera, Cesar A.] Univ Autonoma Chapingo, Unidad Reg Univ Zonas Aridas, Durango 35230, Mexico; [Arechiga, Carlos F.] Univ Autonoma Zacatecas, Unidad Acad Med Vet & Zootecnia, Calera 98500, Zacatecas, Mexico
推荐引用方式 GB/T 7714	Macias-Cruz, Ulises,Vicente-Perez, Ricardo,Correa-Calderon, Abelardo,et al. n-6 Polyunsaturated fatty acids in the feeding of late gestation hair ewes: the effects on thermoregulation, growth, and metabolism of heat-stressed growing lambs[J],2021.
APA	Macias-Cruz, Ulises.,Vicente-Perez, Ricardo.,Correa-Calderon, Abelardo.,Mellado, Miguel.,Meza-Herrera, Cesar A..,...&Avendano-Reyes, Leonel.(2021).n-6 Polyunsaturated fatty acids in the feeding of late gestation hair ewes: the effects on thermoregulation, growth, and metabolism of heat-stressed growing lambs.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY.
MLA	Macias-Cruz, Ulises,et al."n-6 Polyunsaturated fatty acids in the feeding of late gestation hair ewes: the effects on thermoregulation, growth, and metabolism of heat-stressed growing lambs".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY (2021).