Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity

The objective of the present work was to investigate if the practice of a dry-off period in goats maintained under grazing conditions, increases milk yield and therefore the quantity of its compounds. In goats without dry-off, females were hand milked until parturition (SPS; n = 9). Hand milking of...

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Egile Nagusiak:	Avilés Ruiz, Ricardo, Delgadillo Sánchez, José Alberto, Flores, José Alfredo, Flores Nájera, Manuel de Jesús, Vargas Cruz, Alexis Adrián, Barrón Bravo, Oscar, Sánchez Hernández, Andrés, Hernández-Hernández, Horacio
Formatua:	Online
Hizkuntza:	spa
Argitaratua:	Universidad de Sonora 2021
Sarrera elektronikoa:	https://biotecnia.unison.mx/index.php/biotecnia/article/view/1168
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id	biotecnia-article-1168
record_format	ojs
spelling	biotecnia-article-11682022-05-31T17:19:20Z Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity Efecto del periodo seco en cabras bajo condiciones de pastoreo, en el volumen y cantidad de compuestos lácteos subsecuente Avilés Ruiz, Ricardo Delgadillo Sánchez, José Alberto Flores, José Alfredo Flores Nájera, Manuel de Jesús Vargas Cruz, Alexis Adrián Barrón Bravo, Oscar Sánchez Hernández, Andrés Hernández-Hernández, Horacio Dry-off period goats lactation milk yield grazing Periodo seco Cabras Lactancia producción de leche pastoreo The objective of the present work was to investigate if the practice of a dry-off period in goats maintained under grazing conditions, increases milk yield and therefore the quantity of its compounds. In goats without dry-off, females were hand milked until parturition (SPS; n = 9). Hand milking of goats from dry-off period was stopped 50 days prior occurrence of parturition (CPS; n = 11). We used a factorial design with a lineal model with fixed effects to compare milk yield and quantity of its main compounds, in response to the treatment, time, and time × treatment interaction. There was a treatment effect on milk yield during lactation, with higher values in CPS group than SPS group (P<0.001). In the same way, the quantity of milk compounds was influenced by the treatment (P<0.001). In conclusion, the practice of the dry period in goats under grazing conditions, increase milk production during subsequent lactation and therefore the quantity of its components. El objetivo del presente fue determinar si el practicar el periodo seco en cabras bajo condiciones de pastoreo incrementa la producción láctea y la cantidad de los componentes químicos de la leche. En el grupo de cabras sin periodo seco los animales se mantuvieron diariamente en ordeño manual hasta la ocurrencia del parto (SPS; n = 9). En las cabras del grupo con periodo seco se practicó el secado al suspender el ordeño manual desde 50 días antes del parto (CPS; n = 11). Se utilizó un diseño factorial con un modelo lineal de efectos fijos para evaluar la producción de leche y la cantidad de sus componentes en respuesta al tratamiento, el factor tiempo y la interacción tiempo×tratamiento. Existió un efecto del tratamiento sobre la producción de leche durante la lactancia, por lo que ésta fue mayor para el grupo CPS que para el grupo SPS (P<0.001). De igual manera la cantidad de componentes de la leche mostró un efecto significativo del tratamiento (P<0.001). Se concluye que en cabras lactantes mantenidas en condiciones de pastoreo el practicar el periodo seco promueve una mayor producción de leche en la subsiguiente lactancia y por ello también una mayor cantidad de sus contenidos. Universidad de Sonora 2021-01-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Original peer-reviewed articles Artículos originales evaluados por pares application/pdf text/xml https://biotecnia.unison.mx/index.php/biotecnia/article/view/1168 10.18633/biotecnia.v23i1.1168 Biotecnia; Vol. 23 No. 1 (2021): Enero-Abril; 86-91 Biotecnia; Vol. 23 Núm. 1 (2021): Enero-Abril; 86-91 1665-1456 1665-1456 spa https://biotecnia.unison.mx/index.php/biotecnia/article/view/1168/488 https://biotecnia.unison.mx/index.php/biotecnia/article/view/1168/533 Derechos de autor 2021 Biotecnia https://creativecommons.org/licenses/by-nc-sa/4.0
institution	Biotecnia
collection	OJS
language	spa
format	Online
author	Avilés Ruiz, Ricardo Delgadillo Sánchez, José Alberto Flores, José Alfredo Flores Nájera, Manuel de Jesús Vargas Cruz, Alexis Adrián Barrón Bravo, Oscar Sánchez Hernández, Andrés Hernández-Hernández, Horacio
spellingShingle	Avilés Ruiz, Ricardo Delgadillo Sánchez, José Alberto Flores, José Alfredo Flores Nájera, Manuel de Jesús Vargas Cruz, Alexis Adrián Barrón Bravo, Oscar Sánchez Hernández, Andrés Hernández-Hernández, Horacio Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity
author_facet	Avilés Ruiz, Ricardo Delgadillo Sánchez, José Alberto Flores, José Alfredo Flores Nájera, Manuel de Jesús Vargas Cruz, Alexis Adrián Barrón Bravo, Oscar Sánchez Hernández, Andrés Hernández-Hernández, Horacio
author_sort	Avilés Ruiz, Ricardo
title	Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity
title_short	Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity
title_full	Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity
title_fullStr	Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity
title_full_unstemmed	Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity
title_sort	effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity
description	The objective of the present work was to investigate if the practice of a dry-off period in goats maintained under grazing conditions, increases milk yield and therefore the quantity of its compounds. In goats without dry-off, females were hand milked until parturition (SPS; n = 9). Hand milking of goats from dry-off period was stopped 50 days prior occurrence of parturition (CPS; n = 11). We used a factorial design with a lineal model with fixed effects to compare milk yield and quantity of its main compounds, in response to the treatment, time, and time × treatment interaction. There was a treatment effect on milk yield during lactation, with higher values in CPS group than SPS group (P<0.001). In the same way, the quantity of milk compounds was influenced by the treatment (P<0.001). In conclusion, the practice of the dry period in goats under grazing conditions, increase milk production during subsequent lactation and therefore the quantity of its components.
publisher	Universidad de Sonora
publishDate	2021
url	https://biotecnia.unison.mx/index.php/biotecnia/article/view/1168
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Effect of dry-off period in goats under grazing conditions, on milk production and compounds quantity

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