Effects of winter supplementation and antiparasite treatment on the productive performance of milk herd in the central-south region of Chile

During the winter of 1994, a survey of productive and reproductive parameters was undertaken in the south-central part of Chile (8th Region) on 71 cows provided by four small farms with low production (

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Veröffentlicht in:Preventive veterinary medicine 1999-01, Vol.38 (2), p.207-215
Hauptverfasser: Orellana, Patricio, Recabarren, Sergio, Lobos, Alejandro, Islas, Armando, Briones, Mario, Rubilar, Luis
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container_start_page 207
container_title Preventive veterinary medicine
container_volume 38
creator Orellana, Patricio
Recabarren, Sergio
Lobos, Alejandro
Islas, Armando
Briones, Mario
Rubilar, Luis
description During the winter of 1994, a survey of productive and reproductive parameters was undertaken in the south-central part of Chile (8th Region) on 71 cows provided by four small farms with low production (
doi_str_mv 10.1016/S0167-5877(98)00126-3
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A low food intake was recorded (8.6±0.2–12.4±0.2 kg DM/day) and, as a result, the cows calved with poor body condition score (1.9±0.04 points on the scale of one-to-five, had milk production between 10.5±0.4 and 12.8±0.6 l/day, had a delayed start of ovulatory activity (78.2±4.6 days) and an interval between calving and conception of 120.3±4.6 days. In addition, low levels of packed cell volume (PCV) and hemoglobin (HEM) were found, which were considered to be a combined effect of low feed ingestion and parasitic infection by Fasciola hepatica. To improve the productive and reproductive parameters, treatments were undertaken in three of the four small farms; a parasiticide treatment was used against the F. hepatica at the beginning of the winter and the availability of forage was increased via the use of supplementary green oats. Spring crops were also cultivated: corn for silage and oats with peas to make hay. The antiparasite treatment and supplementation of forage was associated with better body condition score at calving, improved hematological parameters, increased milk production (17%), reduced number of days to conception (120 vs. 91) and increased conception rate at first service (36 vs. 60%). 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The antiparasite treatment and supplementation of forage was associated with better body condition score at calving, improved hematological parameters, increased milk production (17%), reduced number of days to conception (120 vs. 91) and increased conception rate at first service (36 vs. 60%). 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The antiparasite treatment and supplementation of forage was associated with better body condition score at calving, improved hematological parameters, increased milk production (17%), reduced number of days to conception (120 vs. 91) and increased conception rate at first service (36 vs. 60%). In the fourth small farm where no interventions were undertaken, the parameters obtained during 1994 remained unchanged.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>10081800</pmid><doi>10.1016/S0167-5877(98)00126-3</doi><tpages>9</tpages></addata></record>
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subjects Animals
Antiparasitic Agents - therapeutic use
BLOOD COMPOSITION
Blood metabolites
Body Constitution
BOVIN LAITIER
Cattle
Cattle Diseases - parasitology
CHILE
CHILI
COMPLEMENT ALIMENTAIRE
COMPOSICION DE LA SANGRE
COMPOSITION DU SANG
DAIRY CATTLE
Dairy cows
Dairying
Dietary Supplements
FASCIOLA HEPATICA
Fascioliasis - drug therapy
Fascioliasis - veterinary
FEED INTAKE
Female
GANADO DE LECHE
INGESTION DE PIENSOS
Lactation - drug effects
Milk production
Pregnancy
PRISE ALIMENTAIRE (ANIMAUX)
PRODUCTIVIDAD
PRODUCTIVITE
PRODUCTIVITY
PROGESTERONA
PROGESTERONE
Progesterone - blood
Seasons
SUPLEMENTOS
SUPPLEMENTS
Winter supplementation
title Effects of winter supplementation and antiparasite treatment on the productive performance of milk herd in the central-south region of Chile
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