干旱区生态环境知识资源中心(Arid): Ewe-lamb bond at birth and during lactation in an equatorial semi-arid environment is better in a native than in an introduced breed

Arid

DOI	10.1016/j.applanim.2024.106362
	Ewe-lamb bond at birth and during lactation in an equatorial semi-arid environment is better in a native than in an introduced breed
	Fonseca, Vinicius de Franca Carvalho; Morais, Larissa Kellen da Cunha; Saraiva, Edilson Paes; de Sousa, Wandrick Hauss; Pimenta Filho, Edgard Cavalcanti; dos Santos, Jose Danrley Cavalcante; Neta, Geni Caetano Xavier; Ungerfeld, Rodolfo; Freitas-de-Melo, Aline
通讯作者	Fonsêca, VDC
来源期刊	APPLIED ANIMAL BEHAVIOUR SCIENCE
ISSN	0168-1591
EISSN	1872-9045
出版年	2024
卷号	278
英文摘要	Santa Ines and Dorper sheep are the most popular breeds in the Brazilian semi-arid region. The former is of local origin and less intensively selected for productivity, and the latter is an introduced exotic breed selected for meat production. Dorper lambs are heavier at birth than Santa Ines lambs, which might increase the need for birth assistance, negatively influencing the newborn and maternal behaviours. Dorper lambs grow faster, most likely influencing their behavioural strategies during lactation, depending less on their mother than Santa Ines lambs. The aim of this study was to compare the behaviours of Santa Ines and Dorper ewes and their lambs at birth and throughout lactation. A complementary aim was to determine if being single or twin lambs impact differently according to the breed. Twenty-five Santa Ines ewes and their 32 lambs (18 single and 14 twins) and 21 Dorper ewes and their 26 lambs (16 single and 10 twins) were used in the study. Mother-offspring behaviours were recorded from birth until 63 days after lambing. Dorper ewes had a greater incidence of dystocia (P = 0.02) and longer labour (P = 0.0001) than Santa Ines ewes. At birth, Santa Ines ewes displayed a greater frequency of lowpitched bleats (P = 0.0006) and tended to spend more time grooming their lambs than Dorper ewes (P = 0.07). Immediately after birth, Santa Ines lambs shook their head earlier than Dorper lambs (P = 0.003). The litter size effects were unrelated to the breed: ewes of single deliveries groomed their lambs earlier (P = 0.04), and those that delivered twins spent more time grooming the first lamb delivered (P = 0.01). Over the first two weeks after parturition, Santa Ines ewes displayed higher frequencies of head-up postures (P = 0.0001), high-pitched bleats (P = 0.02) and smelled their lambs more times (P = 0.0001) than Dorper ewes. Santa Ines lambs were closer to their mother when grazing (P = 0.0001), while Dorper lambs were closer to their mother when lying down (P = 0.049). In conclusion, Santa Ines sheep shows a stronger ewe-lamb bond than Dorper soon after parturition, and such differences persist at least until 9 weeks after lambing. The ewe-lamb bond was weaker in twin than single lambs, without differences in the degree of its strength between Santa Ines and Dorper sheep.
英文关键词	Lambing Lactation Maternal care Suckling Sheep
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001297658300001
WOS关键词	MATERNAL-BEHAVIOR ; HAIR SHEEP ; PARTURITION ; INVESTMENT ; EXPRESSION ; CARCASS ; TRAITS ; GROWTH ; SINGLE ; AGE
WOS类目	Agriculture, Dairy & Animal Science ; Behavioral Sciences ; Veterinary Sciences
WOS研究方向	Agriculture ; Behavioral Sciences ; Veterinary Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402843
推荐引用方式 GB/T 7714	Fonseca, Vinicius de Franca Carvalho,Morais, Larissa Kellen da Cunha,Saraiva, Edilson Paes,et al. Ewe-lamb bond at birth and during lactation in an equatorial semi-arid environment is better in a native than in an introduced breed[J],2024,278.
APA	Fonseca, Vinicius de Franca Carvalho.,Morais, Larissa Kellen da Cunha.,Saraiva, Edilson Paes.,de Sousa, Wandrick Hauss.,Pimenta Filho, Edgard Cavalcanti.,...&Freitas-de-Melo, Aline.(2024).Ewe-lamb bond at birth and during lactation in an equatorial semi-arid environment is better in a native than in an introduced breed.APPLIED ANIMAL BEHAVIOUR SCIENCE,278.
MLA	Fonseca, Vinicius de Franca Carvalho,et al."Ewe-lamb bond at birth and during lactation in an equatorial semi-arid environment is better in a native than in an introduced breed".APPLIED ANIMAL BEHAVIOUR SCIENCE 278(2024).