Cargando…

Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny

SIMPLE SUMMARY: We tested whether the milk yield capacity and composition of mixed-breed goats on rangeland in northern Mexico during the dry season affects body weight gain and weaning weight of their progeny. Maternal body weight positively influenced milk yield and milk components (p < 0.05 to...

Descripción completa

Detalles Bibliográficos
Autores principales: Flores-Najera, Manuel J., Cuevas-Reyes, Venancio, Vázquez-García, Juan M., Beltrán-López, Sergio, Meza-Herrera, César A., Mellado, Miguel, Negrete-Sánchez, Luis O., Rivas-Jacobo, Marco A., Rosales-Nieto, Cesar A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8001177/
https://www.ncbi.nlm.nih.gov/pubmed/33805782
http://dx.doi.org/10.3390/biology10030220
_version_ 1783671168985726976
author Flores-Najera, Manuel J.
Cuevas-Reyes, Venancio
Vázquez-García, Juan M.
Beltrán-López, Sergio
Meza-Herrera, César A.
Mellado, Miguel
Negrete-Sánchez, Luis O.
Rivas-Jacobo, Marco A.
Rosales-Nieto, Cesar A.
author_facet Flores-Najera, Manuel J.
Cuevas-Reyes, Venancio
Vázquez-García, Juan M.
Beltrán-López, Sergio
Meza-Herrera, César A.
Mellado, Miguel
Negrete-Sánchez, Luis O.
Rivas-Jacobo, Marco A.
Rosales-Nieto, Cesar A.
author_sort Flores-Najera, Manuel J.
collection PubMed
description SIMPLE SUMMARY: We tested whether the milk yield capacity and composition of mixed-breed goats on rangeland in northern Mexico during the dry season affects body weight gain and weaning weight of their progeny. Maternal body weight positively influenced milk yield and milk components (p < 0.05 to p < 0.001). Lactose and solids-non-fat content of milk differed (p < 0.05) between goats with different milk yield capacity, whereas milk protein content tended to differ (p = 0.08) and milk fat content did not (p > 0.05). Milk yield and composition throughout 105-d lactation did not influence body weight gain and weaning weight of the offspring. ABSTRACT: We tested whether the milk yield capacity of mixed-breed goats on a Chihuahuan desert rangeland in northern Mexico during the dry season affects milk composition, body weight gain, and weaning weight of their progeny. Milk yield and composition, and progeny postnatal growth performance, were recorded weekly. One week after kidding, mixed-breed goats (a mixture of Criollo × dairy breeds; n = 40) were allotted into medium (MP) or low (LP) milk yielding groups (20 goats per group). Mean 105-d total milk yield for MP and LP goats was 45.2 ± 12.5 and 20.7 ± 5.2 L, respectively. Milk lactose (4.3 vs. 4.2%) and solids-non-fat (SNF; 8.2 vs. 8.0) differed (p < 0.05) between MP and LP goats; milk protein content tended to differ (p = 0.08) between MP and LP goats with no difference for milk fat content (p > 0.05). Maternal body weight was positively associated with milk yield, milk lactose, and SNF content (p < 0.05 to p < 0.001). Goats giving birth to males produce more milk than goats giving birth to females, but milk fat percentage was higher in goats bearing females (p < 0.001). Milk yield and composition throughout lactation did not influence body weight gain (47.8 vs. 48.7 g/day for kids from MP and LP goats) and weaning weight (6.7 vs. 6.7 kg from MP and LP goats) of the offspring (p > 0.05). Birth weight and weaning weight of the progeny were positively related to maternal body weight (p ≤ 0.05). The postnatal growth of the kids was reduced, extending the time to reach market weight. Nevertheless, non-supplemented mixed-breed goats reared on semi-arid rangeland of northern Mexico have the potential for moderate milk production. Therefore, due to the limited nutrients ingested by grazing goats during the dry season, a nutritional supplement is necessary to keep up milk production and adequate growth of kids.
format Online
Article
Text
id pubmed-8001177
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-80011772021-03-28 Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny Flores-Najera, Manuel J. Cuevas-Reyes, Venancio Vázquez-García, Juan M. Beltrán-López, Sergio Meza-Herrera, César A. Mellado, Miguel Negrete-Sánchez, Luis O. Rivas-Jacobo, Marco A. Rosales-Nieto, Cesar A. Biology (Basel) Article SIMPLE SUMMARY: We tested whether the milk yield capacity and composition of mixed-breed goats on rangeland in northern Mexico during the dry season affects body weight gain and weaning weight of their progeny. Maternal body weight positively influenced milk yield and milk components (p < 0.05 to p < 0.001). Lactose and solids-non-fat content of milk differed (p < 0.05) between goats with different milk yield capacity, whereas milk protein content tended to differ (p = 0.08) and milk fat content did not (p > 0.05). Milk yield and composition throughout 105-d lactation did not influence body weight gain and weaning weight of the offspring. ABSTRACT: We tested whether the milk yield capacity of mixed-breed goats on a Chihuahuan desert rangeland in northern Mexico during the dry season affects milk composition, body weight gain, and weaning weight of their progeny. Milk yield and composition, and progeny postnatal growth performance, were recorded weekly. One week after kidding, mixed-breed goats (a mixture of Criollo × dairy breeds; n = 40) were allotted into medium (MP) or low (LP) milk yielding groups (20 goats per group). Mean 105-d total milk yield for MP and LP goats was 45.2 ± 12.5 and 20.7 ± 5.2 L, respectively. Milk lactose (4.3 vs. 4.2%) and solids-non-fat (SNF; 8.2 vs. 8.0) differed (p < 0.05) between MP and LP goats; milk protein content tended to differ (p = 0.08) between MP and LP goats with no difference for milk fat content (p > 0.05). Maternal body weight was positively associated with milk yield, milk lactose, and SNF content (p < 0.05 to p < 0.001). Goats giving birth to males produce more milk than goats giving birth to females, but milk fat percentage was higher in goats bearing females (p < 0.001). Milk yield and composition throughout lactation did not influence body weight gain (47.8 vs. 48.7 g/day for kids from MP and LP goats) and weaning weight (6.7 vs. 6.7 kg from MP and LP goats) of the offspring (p > 0.05). Birth weight and weaning weight of the progeny were positively related to maternal body weight (p ≤ 0.05). The postnatal growth of the kids was reduced, extending the time to reach market weight. Nevertheless, non-supplemented mixed-breed goats reared on semi-arid rangeland of northern Mexico have the potential for moderate milk production. Therefore, due to the limited nutrients ingested by grazing goats during the dry season, a nutritional supplement is necessary to keep up milk production and adequate growth of kids. MDPI 2021-03-13 /pmc/articles/PMC8001177/ /pubmed/33805782 http://dx.doi.org/10.3390/biology10030220 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Flores-Najera, Manuel J.
Cuevas-Reyes, Venancio
Vázquez-García, Juan M.
Beltrán-López, Sergio
Meza-Herrera, César A.
Mellado, Miguel
Negrete-Sánchez, Luis O.
Rivas-Jacobo, Marco A.
Rosales-Nieto, Cesar A.
Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny
title Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny
title_full Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny
title_fullStr Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny
title_full_unstemmed Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny
title_short Milk Yield and Composition of Mixed-Breed Goats on Rangeland during the Dry Season and the Effect on the Growth of Their Progeny
title_sort milk yield and composition of mixed-breed goats on rangeland during the dry season and the effect on the growth of their progeny
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8001177/
https://www.ncbi.nlm.nih.gov/pubmed/33805782
http://dx.doi.org/10.3390/biology10030220
work_keys_str_mv AT floresnajeramanuelj milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT cuevasreyesvenancio milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT vazquezgarciajuanm milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT beltranlopezsergio milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT mezaherreracesara milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT melladomiguel milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT negretesanchezluiso milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT rivasjacobomarcoa milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny
AT rosalesnietocesara milkyieldandcompositionofmixedbreedgoatsonrangelandduringthedryseasonandtheeffectonthegrowthoftheirprogeny